A8N-SLI
Contents
Notices.................................................................................................v
Safety information .............................................................................. vi
A8N-SLI specifications summary ....................................................... vii
Chapter 1:
Hardware information
1.1
1.2
Before you proceed .............................................................. 1-2
Motherboard overview.......................................................... 1-3
1.2.1
1.2.2
1.2.3
1.2.4
Placement direction ................................................ 1-3
Screw holes ............................................................ 1-3
Motherboard layout ................................................ 1-4
Layout contents ..................................................... 1-5
1.3
1.4
Central Processing Unit (CPU) .............................................. 1-7
1.3.1
1.3.2
Installing the CPU.................................................... 1-7
Installing the heatsink and fan................................ 1-9
System memory .................................................................1-12
1.4.1
1.4.2
1.4.3
1.4.4
Overview...............................................................1-12
Memory configurations .........................................1-12
Installing a DIMM ...................................................1-13
Removing a DIMM .................................................1-13
1.5
Expansion slots...................................................................1-14
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
Installing an expansion card..................................1-14
Configuring an expansion card..............................1-14
PCI slots................................................................1-16
PCI Express x16 slot .............................................1-16
PCI Express x1 slot ...............................................1-16
1.6
1.7
Jumper ...............................................................................1-17
Connectors .........................................................................1-18
1.7.1
1.7.2
Rear panel connectors ..........................................1-18
Internal connectors...............................................1-20
iii
Contents
Chapter 2:
BIOS setup
2.1
Managing and updating your BIOS ........................................ 2-2
2.1.1
2.1.2
2.1.3
Creating a bootable floppy disk.............................. 2-2
AwardBIOS Flash Utility .......................................... 2-3
ASUS CrashFree BIOS 2 utility ................................ 2-7
2.2
2.3
BIOS Setup program ............................................................. 2-8
2.2.1
2.2.2
BIOS menu bar ........................................................ 2-9
Legend bar ............................................................. 2-9
Main Menu...........................................................................2-11
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
2.3.6
2.3.7
System Time.........................................................2-11
System Date .........................................................2-11
Legacy Diskette A ................................................2-11
Installed Memory ..................................................2-11
Primary and Secondary IDE Master/Slave.............2-12
First, Second, Third, and Fourth SATA Master .....2-14
Installed Memory ..................................................2-15
2.4
Advanced Menu ..................................................................2-16
2.4.1
2.4.2
2.4.3
2.4.4
CPU configuration .................................................2-17
Chipset configuration ...........................................2-18
PCIPnP...................................................................2-20
Onboard device configuration .............................2-22
2.5
2.6
Power Menu ........................................................................2-26
2.5.1
2.5.2
APM configuration ................................................2-27
Hardware monitor .................................................2-29
Boot Menu ..........................................................................2-30
2.6.1
2.6.2
2.6.3
2.6.4
Boot Device Priority..............................................2-31
Hard Disk Drives ...................................................2-31
Boot settings configuration..................................2-32
Security ................................................................2-34
2.7
Exit menu ...........................................................................2-35
i v
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
•
•
This device may not cause harmful interference, and
This device must accept any interference received including interference
that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with
manufacturerꢂs instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
•
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment to an outlet on a circuit different from that to
which the receiver is connected.
•
Consult the dealer or an experienced radio/TV technician for help.
The use of shielded cables for connection of the monitor to the graphics
card is required to assure compliance with FCC regulations. Changes or
modifications to this unit not expressly approved by the party
responsible for compliance could void the userꢂs authority to operate
this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise
emissions from digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications.
This class B digital apparatus complies with Canadian
ICES-003.
v
Safety information
Electrical safety
•
•
To prevent electrical shock hazard, disconnect the power cable from
the electrical outlet before relocating the system.
When adding or removing devices to or from the system, ensure that
the power cables for the devices are unplugged before the signal cables
are connected. If possible, disconnect all power cables from the existing
system before you add a device.
•
•
•
Before connecting or removing signal cables from the motherboard,
ensure that all power cables are unplugged.
Seek professional assistance before using an adapter or extension cord.
These devices could interrupt the grounding circuit.
Make sure that your power supply is set to the correct voltage in your
area. If you are not sure about the voltage of the electrical outlet you
are using, contact your local power company.
•
If the power supply is broken, do not try to fix it by yourself. Contact a
qualified service technician or your retailer.
Operation safety
•
Before installing the motherboard and adding devices on it, carefully read
all the manuals that came with the package.
•
Before using the product, make sure all cables are correctly connected
and the power cables are not damaged. If you detect any damage,
contact your dealer immediately.
•
•
To avoid short circuits, keep paper clips, screws, and staples away from
connectors, slots, sockets and circuitry.
Avoid dust, humidity, and temperature extremes. Do not place the
product in any area where it may become wet.
•
•
Place the product on a stable surface.
If you encounter technical problems with the product, contact a qualified
service technician or your retailer.
v i
A8N-SLI specifications summary
CPU
Socket 939 for AMD Athlon™ 64FX/AMD Athlon™ 64
processor
Supports AMD 64 architecture that enables simultaneous
32-bit and 64-bit architecture
NVIDIA® nForce™4 SLI
1 GHz (K8) / 800 MHz
Chipset
Front Side Bus
Memory
Dual-channel memory architecture
4 x 184-pin DIMM sockets support non-ECC
unbufferred 400 MHz DDR memory modules
Supports up to 2 GB system memory
Expansion slots
Storage
2 x PCI Express™ x16 slot for discrete graphics cards*
2 x PCI Express™ x1 slots
3 x PCI slots
NVIDIA® nForce™4 SLI chipset supports:
- 4 x Ultra DMA 133/100/66/33 hard disk drives
- 4 x Serial ATA drives with RAID 0, RAID 1, and
RAID 0+1 configurations
Audio
Realtek® ALC850 8-channel CODEC
1 x Coaxial S/PDIF out port
1 x Optical S/PDIF out port
Marvell® 88E81111 PCI Express™ Gigabit LAN controller
LAN
IEEE 1394
T1 1394a controller supports:
- 2 x IEEE 1394a ports
Supports up to 10 USB 2.0 ports
USB
BIOS features
4 Mb Flash ROM, Phoenix-Award BIOS, LPC, Green, PnP,
DMI2.0, WfM2.0, SM BIOS 2.3, ACPI 2.0a
ASUS Q-Fan2
Special features
ASUS My Logo2™
ASUS EZ Flash
ASUS Crash Free BIOS 2
(continued on the next page)
This motherboard does not support the Scalable Link Interface™ (SLI)
mode for two identical SLI™-ready PCI Express x16 graphics cards.
Single card mode (default) supports:
-
1 x PCI Express™ x16 graphics card on either blue or black slot
vii
A8N-SLI specifications summary
Rear panel
1 x PS/2 mouse port
1 x Parallel port
1 x IEEE 1394a port
1 x LAN (RJ-45) port
4 x USB 2.0 ports
1 x Coaxial S/PDIF Out port
1 x Optical S/PDIF Out port
1 x PS/2 keyboard port
8-Channel audio ports
Internal
connectors
1 x Floppy disk drive connector
2 x IDE connectors
4 x Serial ATA connectors
1 x CPU fan connector
2 x Chassis fan connectors
1 x Chipset fan connector
3 x USB connectors
1 x IEEE 1394a connector
1 x Serial port connector
1 x 24-pin ATX power connector
1 x 4-pin ATX 12V power connector
1 x Internal audio connector
1 x Optical drive audio
1x Front panel audio connector
1 x System panel connector
Power
requirement
ATX power supply (with 24-pin and 4-pin 12 V plugs)
ATX 12 V 2.0 compliant
Form factor
ATX form factor: 12 in x 9.6 in (30.5 cm x 24.4 cm)
*Specifications are subject to change without notice.
viii
This chapter lists the hardware setup
procedures that you have to perform
when installing system components.
It includes description of the jumpers
and connectors on the motherboard.
Hardware
information
1.1 Before you proceed
Take note of the following precautions before you install motherboard
components or change any motherboard settings.
•
•
Unplug the power cord from the wall socket before touching any
component.
Use a grounded wrist strap or touch a safely grounded object or a
metal object, such as the power supply case, before handling
components to avoid damaging them due to static electricity
•
•
Hold components by the edges to avoid touching the ICs on them.
Whenever you uninstall any component, place it on a grounded
antistatic pad or in the bag that came with the component.
•
Before you install or remove any component, ensure
that the ATX power supply is switched off or the
power cord is detached from the power supply. Failure
to do so may cause severe damage to the motherboard, peripherals,
and/or components.
Onboard LEDs
The motherboard comes with a green standby power LED that lights
up to indicate that the system is ON, in sleep mode, or in soft-off
mode. This is a reminder that you should shut down the system and
unplug the power cable before removing or plugging in any
motherboard component.
The red warning LED lights up when you installed two graphics cards
but did not connect the ASUS EZ Plug™. The illustration below shows
the location of the onboard LEDs.
SLI_WARN_LED
ON
When use 2 Graphics
but do not plug EZ-PLUG
OFF
When use 2 Graphics
but do plug EZ-PLUG
A8N-SLI
SB_PWR
®
ON
Standby
Power
OFF
Powered
Off
A8N-SLI Onboard LED
1-2
Chapter 1: Hardware information
1.2 Motherboard overview
Before you install the motherboard, study the configuration of your chassis
to ensure that the motherboard fits into it. Refer to the chassis
documentation before installing the motherboard.
Make sure to unplug the power cord before installing or removing the
motherboard. Failure to do so can cause you physical injury and damage
motherboard components.
1.2.1 Placement direction
When installing the motherboard, make sure that you place it into the
chassis in the correct orientation. The edge with external ports goes to the
rear part of the chassis as indicated in the image below.
1.2.2 Screw holes
Place nine screws into the holes indicated by circles to secure the
motherboard to the chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
Place this side towards
the rear of the chassis
A8N-SLI
ASUS A8N-SLI
1-3
1.2.3 Motherboard layout
24.5cm (9.6in)
PS/2KBMS
T: Mouse
B: Keyboard
CPU_FAN
CHA2_FAN
ATX12V
SPDIF_O
SPDIF_O2
USB12
LAN1_USB34
CD
Top:Rear Speaker Out
Center:
Side Speaker Out
Below:
AUX
Center/Subwoofer
Marvell
88E1111
Top:Line In
Center:Line Out
Bottom:Mic In
EZ_PLUG
PCIEX16_1
A8N-SLI
ALC850
PCIEX1_1
PCIEX1_2
SLI_CON
nVidia
CK804
SLI
CHIP_FAN
PCIEX16_2
®
SATA4
SATA2
SATA3
PCI1
PCI2
PCI3
SATA1
1394
Controller
Super
I/O
CR2032 3V
Lithium Cell
CMOS Power
CHA1_FAN
CLRTC
CHASSIS
COM1
USB78
USB56
USB910
IE_1394_2
SB_PWR
F_PANEL
1-4
Chapter 1: Hardware information
1.2.4 Layout contents
Slots
Page
1. DDR DIMM slots
2. PCI slots
1-12
1-16
1-16
1-16
3. PCI Express x16 slot
4. PCI Express x1 slot
Jumper
Page
1-17
1. Clear RTC RAM (3-pin CLRTC)
Rear panel connectors
Page
1. PS/2 mouse port
1-18
1-18
1-18
1-18
1-18
1-18
1-18
1-19
1-19
1-19
1-19
1-19
1-19
1-19
1-19
2. Parallel port
3. LAN (RJ-45) port
4. Rear Speaker Out port
5. Side Spearker Out port
6. Line In port
7. Line Out port
8. Microphone port
9. Center/Subwoofer port
10. USB 2.0 ports 3 and 4
11. USB 2.0 ports 1 and 2
12. IEEE 1394a port
13. Optical S/PDIF Out port
14. Coaxial S/PDIF Out port
15. PS/2 keyboard port
ASUS A8N-SLI
1-5
Internal connectors
P
a
g
e
1. Floppy disk drive connector (34-1 pin FLOPPY1)
2. Serial port connector (10-1 pin COM1)
1-20
1-20
1-21
1-22
1-23
1-23
1-23
1-23
1-24
1-24
1-25
1-26
1-26
1-27
1-28
3. IDE connectors (40-1 pin PRI_IDE, SEC_IDE)
4. Serial ATA connectors (7-pin SATA1, SATA2, SATA3, SATA4)
5. CPU fan connector (3-pin CPU_FAN)
6. Chassis fan connectors (3-pin CHA1_FAN, CHA2_FAN)
7. Chipset fan connector (3-pin CHIP_FAN)
8. Power fan connector (3-pin PWR_FAN)
9. USB connectors (10-1 pin USB78, USB56, USB910)
10. IEEE 1394a connector (10-1 pin IE_1394_2)
11. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V1, 4-pin EZ_PLUG)
12. Internal audio connectors (4-pin AUX, 4-pin CD)
13. Front panel audio connector (10-1 pin FP_AUDIO)
14. Chassis intrusion connector (4-1 pin CHASSIS)
15. System panel connector (10-1 pin FRONTPANEL)
1-6
Chapter 1: Hardware information
1.3 Central Processing Unit (CPU)
The motherboard comes with a surface mount 939-pin Zero Insertion Force
(ZIF) socket designed for the AMD Athlon™ 64FX or AMD Athlon™ 64
processor.
The 128-bit-wide data paths of these processors can run applications
faster than processors with only 32-bit or 64-bit wide data paths.
Take note of the marked corner (with
gold triangle) on the CPU. This mark
should match a specific corner on the
socket to ensure correct installation.
Gold triangle
1.3.1 Installing the CPU
To install a CPU:
1. Locate the CPU socket on the motherboard.
A8N-SLI
®
A8N-SLI CPU Socket 939
ASUS A8N-SLI
1-7
2. Unlock the socket by pressing
the lever sideways, then lift it up
to a 90°-100° angle.
Socket lever
Make sure that the socket lever is lifted up to 90°-100° angle; otherwise
the CPU does not fit in completely.
3. Position the CPU above the
socket such that the CPU corner
with the gold triangle matches
the socket corner with a small
triangle.
4. Carefully insert the CPU into the
socket until it fits in place.
Gold
triangle
Small triangle
The CPU fits only in one correct orientation. DO NOT force the CPU into
the socket to prevent bending the pins and damaging the CPU!
5. When the CPU is in place, push
down the socket lever to secure
the CPU. The lever clicks on the
side tab to indicate that it is
locked.
1-8
Chapter 1: Hardware information
1.3.2 Installing the heatsink and fan
The AMD Athlon™ 64FX or AMD Athlon™ 64 processor requires a specially
designed heatsink and fan assembly to ensure optimum thermal condition
and performance.
Make sure that you use only qualified heatsink and fan assembly.
To install the CPU heatsink and fan:
1. Place the heatsink on top of the installed CPU, making sure that the
heatsink fits properly on the retention module base.
•
•
•
The retention module base is already installed on the motherboard
upon purchase.
You do not have to remove the retention module base when
installing the CPU or installing other motherboard components.
If you purchased a separate CPU heatsink and fan assembly, make
sure that a Thermal Interface Material is properly applied to the CPU
heatsink or CPU before you install the heatsink and fan assembly.
CPU fan
CPU heatsink
Retention module base
Retention bracket
Retention bracket lock
Your boxed CPU heatsink and fan assembly should come with installation
instructions for the CPU, heatsink, and the retention mechanism. If the
instructions in this section do not match the CPU documentation, follow
the latter.
ASUS A8N-SLI
1-9
2. Attach one end of the retention bracket to the retention module
base.
3. Align the other end of the retention bracket (near the retention
bracket lock) to the retention module base. A clicking sound denotes
that the retention bracket is in place.
Make sure that the fan and
heatsink assembly perfectly
fits the retention mechanism
module base; otherwise, you
cannot snap the retention
bracket in place.
4. Push down the retention bracket lock on the retention mechanism to
secure the heatsink and fan to the module base.
1-10
Chapter 1: Hardware information
5. When the fan and heatsink assembly is in place, connect the CPU fan
cable to the connector on the motherboard labeled CPU_FAN.
CPU_FAN
A8N-SLI
®
A8N-SLI CPU fan connector
Do not forget to connect the CPU fan connector! Hardware monitoring
errors can occur if you fail to plug this connector.
ASUS A8N-SLI
1-11
1.4 System memory
1.4.1 Overview
The motherboard comes with four 184-pin Double Data Rate (DDR) Dual
Inline Memory Modules (DIMM) sockets.
The following figure illustrates the location of the sockets:
A8N-SLI
®
A8N-SLI 184-pin DDR DIMM sockets
Channel
Sockets
Channel A
Channel B
DIMM_A1 and DIMM_A2
DIMM_B1 and DIMM_B2
1.4.2 Memory configurations
You may install 256 MB, 512 MB and 1 GB unbuffered non-ECC DDR DIMMs
into the DIMM sockets using the memory configurations in this section.
•
For dual-channel configuration, the total size of memory module(s)
installed per channel must be the same for better performance
(DIMM_A1+DIMM_A2=DIMM_B1+DIMM_B2).
•
•
When using one DDR DIMM module, install into DIMM_B1 slot only.
When using two DDR DIMM modules, install into DIMM_A1 and
DIMM_B1 slots only.
•
Always install DIMMs with the same CAS latency. For optimum
compatibility, we recommended that you obtain memory modules
from the same vendor system builderꢀs website for the latest
qualified vendors list (QVL).
•
•
Due to chipset resource allocation, the system may detect less than
4 GB of system memory when you installed four 1 GB DDR memory
modules.
Due to CPU limitation, this motherboard does not support DIMM
modules with 128 Mb memory chips or double-sided x16 memory
chips.
1-12
Chapter 1: Hardware information
1.4.3 Installing a DIMM
Make sure to unplug the power supply before adding or removing DIMMs
or other system components. Failure to do so may cause severe damage
to both the motherboard and the components.
2
1. Unlock a DIMM socket by
DDR DIMM notch
pressing the retaining clips
outward.
1
2. Align a DIMM on the socket such
that the notch on the DIMM
matches the break on the
socket.
1
Unlocked retaining clip
A DDR DIMM is keyed with a notch so that it fits in only one direction.
DO NOT force a DIMM into a socket to avoid damaging the DIMM.
3. Firmly insert the DIMM into the
socket until the retaining clips
snap back in place and the DIMM
is properly seated.
Locked retaining clip
1.4.4 Removing a DIMM
2
To remove a DIMM:
1. Simultaneously press the
retaining clips outward to unlock
the DIMM.
1
1
DDR DIMM notch
Support the DIMM lightly with your fingers when pressing the retaining
clips. The DIMM might get damaged when it flips out with extra force.
2. Remove the DIMM from the socket.
ASUS A8N-SLI
1-13
1.5 Expansion slots
In the future, you may need to install expansion cards. The following
sub-sections describe the slots and the expansion cards that they support.
Make sure to unplug the power cord before adding or removing
expansion cards. Failure to do so may cause you physical injury and
damage motherboard components.
1.5.1 Installing an expansion card
To install an expansion card:
1. Before installing the expansion card, read the documentation that
came with it and make the necessary hardware settings for the card.
2. Remove the system unit cover (if your motherboard is already
installed in a chassis).
3. Remove the bracket opposite the slot that you intend to use. Keep
the screw for later use.
4. Align the card connector with the slot and press firmly until the card is
completely seated on the slot.
5. Secure the card to the chassis with the screw you removed earlier.
6. Replace the system cover.
1.5.2 Configuring an expansion card
After installing the expansion card, configure it by adjusting the software
settings.
1. Turn on the system and change the necessary BIOS settings, if any.
See Chapter 2 for information on BIOS setup.
2. Assign an IRQ to the card. Refer to the tables on the next page.
3. Install the software drivers for the expansion card.
1-14
Chapter 1: Hardware information
Standard interrupt assignments
I R Q
Priority
Standard Function
0
1
2
System Timer
1
Keyboard Controller
2
–
Re-direct to IRQ#9
4
12
13
14
15
3
Communications Port (COM1)*
IRQ holder for PCI steering*
Floppy Disk Controller
5
6
7
Printer Port (LPT1)*
8
System CMOS/Real Time Clock
IRQ holder for PCI steering*
IRQ holder for PCI steering*
IRQ holder for PCI steering*
PS/2 Compatible Mouse Port*
Numeric Data Processor
Primary IDE Channel
9
4
10
11
12
13
14
15
5
6
7
8
9
10
Secondary IDE Channel
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
A
B
C
D
E
F
G
H
PCI slot 1
shared
—
—
shared
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
PCI slot 2
PCI slot 3
—
shared
—
—
Onboard USB 1.0 controller
Onboard USB 2.0 controller
Onboard LAN1
shared
shared
shared
—
—
—
—
—
—
—
—
—
Onboard LAN2
shared
—
—
—
Onboard PCI SATA RAID (SI)
Onboard 1394a
—
—
shared
—
shared
—
—
When using PCI cards on shared slots, ensure that the drivers support
ꢁShare IRQꢂ or that the cards do not need IRQ assignments; otherwise,
conflicts will arise between the two PCI groups, making the system
unstable and the card inoperable.
ASUS A8N-SLI
1-15
1.5.3 PCI slots
The PCI slots support cards such as
a LAN card, SCSI card, USB card,
and other cards that comply with
PCI specifications. The figure shows
a LAN card installed on a PCI slot.
1.5.4 PCI Express x16
slot
This motherboard supports PCI
Express x16 graphic cards that
comply with the PCI Express
specifications.
The figure shows a graphics card
installed on the PCI Express x16
slot.
This motherboard does not support the Scalable Link Interface™ (SLI)
mode for two identical SLI™-ready PCI Express x16 graphics cards.
Single card mode (default) supports:
-
1 x PCI Express™ x16 graphics card on either blue or black slot
1.5.5 PCI Express x1
slot
This motherboard supports PCI
Express x1 network cards, SCSI
cards and other cards that comply
with the PCI Express specifications.
The figure shows a network card
installed on the PCI Express x1 slot.
1-16
Chapter 1: Hardware information
1.6
Jumper
Clear RTC RAM (CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS.
You can clear the CMOS memory of date, time, and system setup
parameters by erasing the CMOS RTC RAM data. The onboard button cell
battery powers the RAM data in CMOS, which include system setup
information such as system passwords.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the
cap on pins 2-3 for about 5~10 seconds, then move the cap back to
pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS
setup to re-enter data.
Except when clearing the RTC RAM, never remove the cap on CLRTC
jumper default position. Removing the cap will cause system boot failure!
CLRTC
A8N-SLI
1 2
2 3
®
Normal
(Default)
Clear CMOS
A8N-SLI Clear RTC RAM
You do not need to clear the RTC when the system hangs due to
overclocking. For system failure due to overclocking, use the C.P.R. (CPU
Parameter Recall) feature. Shut down and reboot the system so the BIOS
can automatically reset parameter settings to default values.
ASUS A8N-SLI
1-17
1.7
Connectors
1.7.1 Rear panel connectors
3
4 5
1
2
6
7
8
15
14
13
12
11
10
9
1 . PS/2 mouse port (green). This port is for a PS/2 mouse.
2 . Parallel port. This 25-pin port connects a parallel printer, a scanner,
or other devices.
3 . LAN 2 (RJ-45) port. Supported by the Marvell® 88E81111 Gigabit
LAN controller, this port allows Gigabit connection to a Local Area
Network (LAN) through a network hub.
LAN port LED indications
ACT/LINK SPEED
LED
ACT/LINK LED
Status Description
SPEED LED
LED
Status
OFF
Description
OFF
No link
10 Mbps connection
100 Mbps connection
1 Gbps connection
GREEN
BLINKING
Linked
ORANGE
GREEN
LAN port
Data activity
4 . Rear Speaker Out port (gray). This port connects the rear
speakers on a 4-channel, 6-channel, or 8-channel audio configuration.
5 . Side Speaker Out port (black). This port connects the side
speakers in an 8-channel audio configuration.
6 . Line In port (light blue). This port connects the tape, CD, DVD
player, or other audio sources.
7 . Line Out port (lime). This port connects a headphone or a
speaker. In 4-channel, 6-channel, and 8-channel configuration, the
function of this port becomes Front Speaker Out.
1-18
Chapter 1: Hardware information
8 . Microphone port (pink). This port connects a microphone.
9 . Center/Subwoofer port (yellow orange). This port connects
the center/subwoofer speakers.
Refer to the audio configuration table below for the function of the
audio ports in 2, 4, 6, or 8-channel configuration.
Audio 2, 4, 6, or 8-channel configuration
Port
Headset
2-channel
4-channel
6-channel
8-channel
Light Blue
Lime
Line In
Line In
Line In
Front Speaker Out
Mic In
Line In
Line Out
Front Speaker Out
Front Speaker Out
Mic In
Pink
Mic In
Mic In
Gray
–
–
–
Rear Speaker Out
Rear Speaker Out
–
Rear Speaker Out
Side Speaker Out
Center/Subwoofer
Black
–
–
Yellow Orange
Center/Subwoofer
10. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus
(USB) ports are available for connecting USB 2.0 devices.
11. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus
(USB) ports are available for connecting USB 2.0 devices.
12. IEEE 1394a port. This 6-pin IEEE 1394 port provides high-speed
connectivity for audio/video devices, storage peripherals, PCs, or
portable devices.
13. Optical S/PDIF Out port. This port connects an external audio
output device via an optical S/PDIF cable.
14. Coaxial S/PDIF Out port. This port connects an external audio
output device via a coaxial S/PDIF cable.
15. PS/2 keyboard port (purple). This port is for a PS/2 keyboard.
ASUS A8N-SLI
1-19
1.7.2 Internal connectors
1 . Floppy disk drive connector (34-1 pin FLOPPY)
This connector is for the provided floppy disk drive (FDD) signal cable.
Insert one end of the cable to this connector, then connect the other
end to the signal connector at the back of the floppy disk drive.
The Pin 5 on the connector is removed to prevent incorrect cable
connection when using an FDD cable with a covered Pin 5.
FLOPPY
NOTE: Orient the red markings on
the floppy ribbon cable to PIN 1.
A8N-SLI
®
PIN 1
A8N-SLI Floppy disk drive connector
2 . Serial port connector (10-1 pin COM1)
This connector is for a serial (COM) port. Connect the serial port
module cable to this connector, then install the module to a slot
opening at the back of the system chassis.
COM1
A8N-SLI
PIN 1
®
A8N-SLI COM port connector
1-20
Chapter 1: Hardware information
3 . IDE connectors (40-1 pin PRI_IDE, SEC_IDE)
These connectors are for Ultra DMA 133/100/66 signal cables. The
Ultra DMA 133/100/66 signal cable has three connectors: a blue
connector for the primary IDE connector on the motherboard, a black
connector for an Ultra DMA 133/100/66 IDE slave device (optical
drive/hard disk drive), and a gray connector for an Ultra DMA 133/
100/66 IDE master device (hard disk drive). If you install two hard disk
drives, you must configure the second drive as a slave device by setting
its jumper accordingly. Refer to the hard disk documentation for the
jumper settings.
•
The Pin 20 on the IDE connector is removed to match the covered
hole on the Ultra DMA cable connector. This prevents incorrect
insertion when you connect the IDE cable.
•
Use the 80-conductor IDE cable for UltraDMA133/100/66 IDE
devices.
A8N-SLI
NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.
®
PIN 1
A8N-SLI IDE connectors
ASUS A8N-SLI
1-21
4 . Serial ATA connectors
(7-pin SATA1, SATA2, SATA3, SATA4)
Supported by the NVIDIA® nForce™4 SLI chipset, these connectors are
for the Serial ATA signal cables for Serial ATA hard disk drives that
allow up to 3Gb/s of data transfer rate.
If you installed Serial ATA hard disk drives, you can create a RAID 0,
RAID 1, or RAID 1+0 configuration that span across the Parallel ATA
drives.
These connectors are set to SATA by default. In SATA mode, you can
connect Serial ATA boot or data hard disk drives to these connectors. If
you intend to create a Serial ATA RAID set using these connectors,
enable the RAID function of each port from the NVRAID
Configuration sub-menu item in the BIOS. See section “2.4.3 Onboard
Devices Configuration” on pages 2-24 and 2-26 for details.
SATA4
SATA2
SATA3
SATA1
A8N-SLI
®
A8N-SLI SATA connectors
The actual data transfer rate depends on the speed of Serial ATA hard
disks installed.
Serial ATA Master/Slave connectors
Connector
C
o
l
o
r
S
e
t
t
i
n
g
U
s
e
SATA1, SATA2
SATA3, SATA4
Black
Black
Master
Slave
Boot Disk
Data Disk
1-22
Chapter 1: Hardware information
5 . CPU, chassis, power, and chipset fan connectors (3-pin
CPU_FAN, 3-pin CHA1_FAN, 3-pin CHA2_FAN, 3-pin
PWR_FAN, 3-pin CHIP_FAN))
These fan connectors support cooling fans of 350 mA ~ 2000 mA (24
W max.) or a total of 1 A ~ 3.48 A (41.76 W max.) at +12 V. Connect
the fan cable to the fan connector on the motherboard, making sure
that the black wire of each cable matches the ground pin of the
connector.
The chipset fan connector is for the NVIDIA® nForce™4 SLI chipset.
Connect the fan cable to the fan connector on the motherboard.
Do not forget to connect the fan cables to the fan connectors.
Insufficient air flow inside the system may damage the motherboard
components. These are not jumpers! DO NOT place jumper caps on the
fan connectors.
CPU_FAN
CPU_FAN
CHA2_FAN
PWR_FAN
CHA2_FAN
A8N-SLI
GND
+12V
Rotation
PWR_FAN
CHIP_FAN
CHA1_FAN
®
CHIP_FAN
CHA1_FAN
A8N-SLI Fan connectors
GND
+12V
Rotation
ASUS A8N-SLI
1-23
6 . USB connectors (10-1 pin USB78, USB56, USB910)
These connectors are for USB 2.0 ports. Connect the USB/GAME
module cable to any of these connectors, then install the module to a
slot opening at the back of the system chassis. These USB connectors
comply with USB 2.0 specification that supports up to 480 Mbps
connection speed.
A8N-SLI
®
USB78
USB56
USB910
1
1
1
A8N-SLI
USB 2.0 connectors
Never connect a 1394 cable to the USB connectors. Doing so will
damage the motherboard!
7 . IEEE 1394a connector (10-1 pin IE_1394_2)
This connector is for an IEEE 1394a port. Connect the IEEE 1394a
module cable to this connector, then install the module to a slot
opening at the back of the system chassis.
A8N-SLI
®
1
IE_1394_2
A8N-SLI IEEE 1394 connector
NEVER connect a USB cable to the IEEE 1394a connector. Doing so
will damage the motherboard!
1-24
Chapter 1: Hardware information
8 . ATX power connectors (24-pin EATXPWR, 4-pin ATX12V1,
4-pin EZ_PLUG)
These connectors are for ATX power supply plugs. The power supply
plugs are designed to fit these connectors in only one orientation.
Find the proper orientation and push down firmly until the connectors
completely fit.
•
•
Do not forget to connect the 4-pin ATX +12 V power plug;
otherwise, the system will not boot.
Use of a PSU with a higher power output is recommended when
configuring a system with more power-consuming devices. The
system may become unstable or may not boot up if the power is
inadequate.
•
Make sure that your power supply unit (PSU) can provide at least
the minimum power required by your system. See the table below
for details.
Power supply requirements
Loading
Normal
Components/Peripherals
AMD® K8 939-pin CPU type
PCIe™ x16 graphics cards
DDR DIMMs
Heavy
Light
Athlon 64 FX-55
Athlon 64 3800+ Athlon 64 3400+
6800 Ultra x2
6800GT x2
6600GT x2
4
2
2
HDD
4
2
2
Optical drive (DVD/CD-RW)
PCIe™ x 1 card
2
2
1
1
0
0
PCI cards
3
2
1
IEEE 1394 devices
USB devices
1
6
0
4
0
3
Required +12V current
Required wattage
> 25A
>= 500W
> 20A
>= 400W
> 17A
>= 350W
ATX12V
+12V DC GND
EATXPWR
+3 Volts
-12 Volts
Ground
PSON#
Ground
Ground
Ground
-5 Volts
+5 Volts
+5 Volts
+5 Volts
Ground
+3 Volts
+3 Volts
Ground
+12V DC GND
+5 Volts
Ground
A8N-SLI
EZ_PLUG
+5 Volts
Ground
®
+5V
Power OK
+5V Standby
+12 Volts
+12 Volts
+3 Volts
EZ_DET
GND
+12V
A8N-SLI ATX power connectors
ASUS A8N-SLI
1-25
9 . Internal audio connectors (4-pin AUX, 4-pin CD)
These connectors allow you to receive stereo audio input from sound
sources such as a CD-ROM, TV tuner, or MPEG card.
CD
(black)
AUX
(white)
Right Audio Channel
Ground
A8N-SLI
Ground
Left Audio Channel
®
A8N-SLI Internal audio connectors
10. Front panel audio connector (10-1 pin FP_AUDIO)
This connector is for a chassis-mounted front panel audio I/O module
that supports legacy AC ‘97 audio standard. Connect one end of the
front panel audio I/O module cable to this connector.
FP_AUDIO
BLINE_OUT_L
Line out_L
A8N-SLI
NC
BLINE_OUT_R
+5VA
Line out_R
MICPWR
MIC2
®
AGND
A8N-SLI Front panel audio connector
1-26
Chapter 1: Hardware information
11. Chassis intrusion connector (4-1 pin CHASSIS)
This connector is for a chassis-mounted intrusion detection sensor or
switch. Connect one end of the chassis intrusion sensor or switch
cable to this connector. The chassis intrusion sensor or switch sends a
high-level signal to this connector when a chassis component is
removed or replaced. The signal is then generated as a chassis
intrusion event.
By default, the pins labeled “Chassis Signal” and “Ground” are shorted
with a jumper cap. Remove the jumper caps only when you intend to
use the chassis intrusion detection feature.
A8N-SLI
®
CHASSIS
(Default)
A8N-SLI Chassis alarm lead
ASUS A8N-SLI
1-27
12. System panel connector (10-1 pin F_PANEL)
This connector supports several chassis-mounted functions.
PLED PWRSW
F_PANEL
A8N-SLI
®
IDE_LED RESET
* Requires an ATX power supply.
A8N-SLI System panel connector
•
System power LED (2-pin PLED)
This 3-pin connector is for the system power LED. Connect the
chassis power LED cable to this connector. The system power LED
lights up when you turn on the system power, and blinks when the
system is in sleep mode.
•
•
Hard disk drive activity (2-pin IDE_LED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD
Activity LED cable to this connector. The IDE LED lights up or flashes
when data is read from or written to the HDD.
Power/Soft-off button (2-pin PWRSW)
This connector is for the system power button. Pressing the power
button turns the system ON or puts the system in SLEEP or SOFT-OFF
mode depending on the BIOS settings. Pressing the power switch for
more than four seconds while the system is ON turns the system OFF.
•
Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for
system reboot without turning off the system power.
1-28
Chapter 1: Hardware information
This chapter tells how to change
the system settings through the BIOS
Setup menus. Detailed descriptions
of the BIOS parameters are also
provided.
BIOS setup
2
ASUS A8N-SLI
2-1
2.1 Managing and updating your BIOS
The following utilities allow you to manage and update the motherboard
Basic Input/Output System (BIOS) setup.
1. AwardBIOS Flash Utility (Updates the BIOS using a floppy disk
during POST.)
2. ASUS CrashFree BIOS 2 Utility (Updates the BIOS using a
bootable floppy disk when the BIOS gets corrupted.)
Refer to the corresponding section for details on these utilities.
Important notes
•
Save a copy of the original motherboard BIOS file to a
bootable floppy disk in case you need to restore the BIOS in
the future. Copy the original motherboard BIOS using the ASUS
Update or AFLASH utilities.
•
Visit the system builder’s website and download the latest BIOS file
for this motherboard using the ASUS Update utility.
2.1.1 Creating a bootable floppy disk
1. Do either one of the following to create a bootable floppy disk.
DOS environment
a. Insert a 1.44 MB floppy disk into the drive.
b. At the DOS prompt, type format A:/S then press <Enter>.
Windows® XP environment
a. Insert a 1.44 MB floppy disk to the floppy disk drive.
b. Click Start from the Windows® desktop, then select M y
Computer.
c. Select the 3 1/2 Floppy Drive icon.
d. Click File from the menu, then select Format. A Format 3 1/2
Floppy Disk window appears.
e. Select Create an MS-DOS startup disk from the format
options field, then click Start.
2-2
Chapter 2: BIOS setup
Windows® 2000 environment
To create a set of boot disks for Windows® 2000:
a. Insert a formatted, high density 1.44 MB floppy disk into the drive.
b. Insert the Windows® 2000 CD to the optical drive.
c. Click Start, then select Run.
d. From the Open field, type
D:\bootdisk\makeboot a:
assuming that D: is your optical drive.
e. Press <Enter>, then follow screen instructions to continue.
2. Copy the original or the latest motherboard BIOS file to the bootable
floppy disk.
2.1.2 AwardBIOS Flash Utility
The Basic Input/Output System (BIOS) can be updated using the built-in
Flash Memory Writer utility or using a bootable floppy disk with the
executable Flash Memory Writer Utility (AWDFLASH.EXE). Follow these
instructions to update the BIOS using this utility.
Save only the updated BIOS file in the floppy disk to avoid loading a
wrong BIOS file.
The succeeding screens are for reference only. The actual displays may
not exactly match what you see on your screen.
Updating the BIOS file
1. Download the latest BIOS file from the system builder’s website. .
Rename the file to (BIOS file name on the support CD).BIN and save it
to the bootable floppy disk you created earlier.
2. Copy the AwardBIOS Flash Utility (awdflash.exe) from the Software
folder of the support CD to the floppy disk with the latest BIOS file.
3. Boot the system in DOS mode using the bootable floppy disk you
created earlier.
ASUS A8N-SLI
2-3
4. When the A:> appears, replace the bootable floppy disk with the
floppy disk containing the new BIOS file and the Award BIOS Flash
Utility.
5. At the prompt, type
AwardBIOS Flash Utility for ASUS V1.09
(C) Phoenix Technologies Ltd. All Rights Reserved
awdflash then press
<Enter>. The Award
For NF-KC804-A8N-SLI-00
DATE: 11/30/2004
Flash Type - SST 49LF004A/B /3.3V
BIOS Flash Utility screen
appears.
File Name to Program:
Message: Please input File Name!
6. Type the BIOS file name
in the File Name to
Program field, then
press <Enter>.
AwardBIOS Flash Utility for ASUS V1.09
(C) Phoenix Technologies Ltd. All Rights Reserved
For NF-KC804-A8N-SLI-00
DATE: 11/30/2004
Flash Type - SST 49LF004A/B /3.3V
File Name to Program: 1001-001.bin
Message: Do You Want To Save Bios (Y/N)
7. The utility prompts you to save the current BIOS file. Press <Y> to
save the current BIOS file to the floppy disk, or <N> to continue.
If you intend to save the current BIOS file, make sure that the floppy
disk has enough disk space to save the file. See the next section for
details on saving the current BIOS file.
2-4
Chapter 2: BIOS setup
8. The utility verifies the
BIOS file in the floppy
disk and starts flashing
the BIOS file.
AwardBIOS Flash Utility for ASUS V1.09
(C) Phoenix Technologies Ltd. All Rights Reserved
For NF-KC804-A8N-SLI-00
DATE: 11/30/2004
Flash Type - SST 49LF004A/B /3.3V
File Name to Program: 1001-001.bin
Program Flashing Memory - OFE00 OK
Write OK
No Update
Write Fail
Warning: Don’t Turn Off Power Or Reset System!
Do not turn off or reset the system during the flashing process!
9. The utility displays a
AwardBIOS Flash Utility for ASUS V1.09
(C) Phoenix Technologies Ltd. All Rights Reserved
Flashing Complete
message indicating that
you have successfully
flashed the BIOS file.
Remove the floppy disk
then press <F1> to
For NF-KC804-A8N-SLI-00
DATE: 11/30/2004
Flash Type - SST 49LF004A/B /3.3V
File Name to Program: 1001-001.bin
Flashing Complete
Press <F1> to Continue
restart the system.
Write OK
F1 Reset
No Update
Write Fail
ASUS A8N-SLI
2-5
Saving the current BIOS file
You can use the AwardBIOS Flash Utility to save the current BIOS file. You
can load the current BIOS file when the BIOS file gets corrupted during the
flashing process.
To save the current BIOS file using the AwardBIOS Flash Utility:
1. Follow steps 1 to 6 of the previous section.
2. Press <Y> when the
AwardBIOS Flash Utility for ASUS V1.09
(C) Phoenix Technologies Ltd. All Rights Reserved
utility prompts you to
save the current BIOS
file. The following screen
appears.
For NF-KC804-A8N-SLI-00
DATE: 11/30/2004
Flash Type - SST 49LF004A/B /3.3V
File Name to Program: 1001-001.bin
Save current BIOS as:
Message:
3. Type a filename for the
current BIOS file in the
Save current BIOS
as field, then press
<Enter>.
AwardBIOS Flash Utility for ASUS V1.09
(C) Phoenix Technologies Ltd. All Rights Reserved
For NF-KC804-A8N-SLI-00
DATE: 11/30/2004
Flash Type - SST 49LF004A/B /3.3V
File Name to Program: 1001-001.bin
Checksum: DAD6H
Save current BIOS as: old.bin
Message: Please Wait!
4. The utility saves the
current BIOS file to the
floppy disk, then returns
to the BIOS flashing
process.
AwardBIOS Flash Utility for ASUS V1.09
(C) Phoenix Technologies Ltd. All Rights Reserved
For NF-KC804-A8N-SLI-00
DATE: 11/30/2004
Flash Type - SST 49LF004A/B /3.3V
File Name to Program: 1001-001.bin
Now Backup System BIOS to
File!
Message: Please Wait!
2-6
Chapter 2: BIOS setup
2.1.3 ASUS CrashFree BIOS 2 utility
The ASUS CrashFree BIOS is an auto recovery tool that allows you to
restore the BIOS file when it fails or gets corrupted during the updating
process. You can update a corrupted BIOS file using the motherboard
support CD or the floppy disk that contains the updated BIOS file.
•
•
Prepare the floppy disk containing the updated motherboard BIOS
before using this utility.
Make sure that you rename the original or updated BIOS file in the
floppy disk to A8N-SLI.ROM.
Recovering the BIOS from a floppy disk
To recover the BIOS from a floppy disk:
1. Turn on the system.
2. Insert the floppy disk with the original or updated BIOS file to the
floppy disk drive.
3. The utility displays the following message and automatically checks
the floppy disk for the original or updated BIOS file.
Bad BIOS checksum. Starting BIOS recovery...
Checking for floppy...
When found, the utility reads the BIOS file and starts flashing the
corrupted BIOS file.
Bad BIOS checksum. Starting BIOS recovery...
Checking for floppy...
Floppy found!
Reading file “A8N-SLI.ROM”. Completed.
Start flashing...
DO NOT shut down or reset the system while updating the BIOS! Doing
so can cause system boot failure!
4. Restart the system after the utility completes the updating process.
ASUS A8N-SLI
2-7
2.2 BIOS Setup program
This motherboard supports a programmable Flash ROM that you can update
using the provided utility described in section “2.1 Managing and updating
your BIOS.”
Use the BIOS Setup program when you are installing a motherboard,
reconfiguring your system, or prompted to “Run Setup.” This section
explains how to configure your system using this utility.
Even if you are not prompted to use the Setup program, you may want to
change the configuration of your computer in the future. For example, you
may want to enable the security password feature or make changes to the
power management settings. This requires you to reconfigure your system
using the BIOS Setup program so that the computer can recognize these
changes and record them in the CMOS RAM of the Flash ROM.
The Flash ROM on the motherboard stores the Setup utility. When you start
up the computer, the system provides you with the opportunity to run this
program. Press <Delete> during the Power-On Self Test (POST) to enter
the Setup utility; otherwise, POST continues with its test routines.
To enter Setup after POST, restart the system by pressing <Ctrl> + <Alt>
+ <Delete>, or by pressing the reset button on the system chassis. You
can also restart by turning the system off and then back on. Do this last
option only if the first two failed.
The Setup program is designed to make it as easy to use as possible. It is a
menu-driven program, which means you can scroll through the various
sub-menus and make your selections among the predetermined choices.
Because the BIOS software is constantly being updated, the following
BIOS setup screens and descriptions are for reference purposes only, and
may not exactly match what you see on your screen.
2-8
Chapter 2: BIOS setup
2.2.1 BIOS menu bar
The top of the screen has a menu bar with the following selections:
MAIN
Use this menu to make changes to the basic system
configuration.
ADVANCED
POWER
BOOT
Use this menu to enable and make changes to the
advanced features.
Use this menu to configure and enable Power
Management features.
Use this menu to configure the default system device
used to locate and load the Operating System.
EXIT
Use this menu to exit the current menu or to exit the
Setup program.
To access the menu bar items, press the right or left arrow key on the
keyboard until the desired item is highlighted.
2.2.2 Legend bar
At the bottom of the Setup screen is a legend bar. The keys in the legend
bar allow you to navigate through the various setup menus. The following
table lists the keys found in the legend bar with their corresponding
functions.
Navigation Key(s)
Function Description
<F1> or <Alt + H>
Displays the General Help screen from
anywhere in the BIOS Setup
<Esc>
Jumps to the Exit menu or returns to the
main menu from a sub-menu
Left or Right arrow
Up or Down arrow
Selects the menu item to the left or right
Moves the highlight up or down between
fields
- (minus key)
Scrolls backward through the values for the
highlighted field
+ (plus key) or spacebar
<Enter>
Scrolls forward through the values for the
highlighted field
Brings up a selection menu for the
highlighted field
<Home> or <PgUp>
<End> or <PgDn>
<F5>
Moves the cursor to the first field
Moves the cursor to the last field
Resets the current screen to its Setup
Defaults
<F10>
Saves changes and exits Setup
ASUS A8N-SLI
2-9
General help
In addition to the Item Specific Help window, the BIOS setup program also
provides a General Help screen. You may launch this screen from any menu
by simply pressing <F1>. The General Help screen lists the legend keys and
their corresponding functions.
Saving changes and exiting the Setup program
See “2.7 Exit Menu” for detailed information on saving changes and exiting
the setup program.
Scroll bar
When a scroll bar appears to the right of a help window, it indicates that
there is more information to be displayed that will not fit in the window.
Use <PgUp> and <PgDn> or the up and down arrow keys to scroll through
the entire help document. Press <Home> to display the first page, press
<End> to go to the last page. To exit the help window, press <Enter> or
<Esc>.
Sub-menu
Note that a right pointer symbol (as shown on the
left) appears to the left of certain fields. This pointer
indicates that you can display a sub-menu from this
field. A sub-menu contains additional options for a
field parameter. To display a sub-menu, move the
highlight to the field and press <Enter>. The sub-
menu appears. Use the legend keys to enter values
and move from field to field within a sub-menu as
you would within a menu. Use the <Esc> key to
return to the main menu.
Take some time to familiarize yourself with the
legend keys and their corresponding functions. Practice navigating through
the various menus and sub-menus. If you accidentally make unwanted
changes to any of the fields, use the set default hot key <F5> to load the
Setup default values. While moving around through the Setup program,
note that explanations appear in the Item Specific Help window located to
the right of each menu. This window displays the help text for the currently
highlighted field.
2-10
Chapter 2: BIOS setup
2.3 Main Menu
When you enter the Setup program, the following screen appears.
Select Menu
System Time
System Date
17:8:12
Thu, Mar 17 2005
Item Specific Help
Legacy Diskette A
[1.44M, 3.5 in.]
Change the internal
clock.
Primary IDE Master
Primary IDE Slave
Secondary IDE Master
Secondary IDE Slave
First SATA Master
Second SATA Master
Third SATA Master
Fourth SATA Master
[ST320410A]
[ASUS CD--S520/]
[None]
[None]
[None]
[None]
[None]
[None]
Installed Memory
256MB
2.3.1 System Time [xx:xx:xx]
Sets the system to the time that you specify (usually the current time).
The format is hour, minute, second. Valid values for hour, minute and
second are Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59). Use
the <Tab> key to move between the hour, minute, and second fields.
2.3.2 System Date [xx/xx/xxxx]
Sets the system to the date that you specify (usually the current date).
The format is month, day, year. Valid values for month, day, and year are
Month: (1 to 12), Day: (1 to 31), Year: (up to 2084). Use the <Tab> key
to move between the month, day, and year fields.
2.3.3 Legacy Diskette A [1.44M, 3.5 in.]
Sets the type of floppy drive installed. Configuration options: [None]
[360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.]
[2.88M, 3.5 in.]
2.3.4 Installed Memory [xxxMB]
This field automatically displays the amount of conventional memory
detected by the system during the boot process.
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2.3.5 Primary and Secondary IDE Master/Slave
Primary IDE Master
Select Menu
Item Specific Help
x Auto Acoustic Management
Disabled
Press [Enter] to
select.
Primary IDE Master
Access Mode
[Auto]
[Auto]
Capacity
13579 MB
Cylinder
Head
26310
16
Sector
63
PIO Mode
UDMA Mode
Transfer Mode
[Auto]
[Auto]
UDMA 4
The BIOS automatically detects the values opposite the dimmed items
(Capacity, Cylinder, Head, Sector, and Transfer Mode). These values are
not user-configurable. These items show N/A if no IDE device is installed in
the system.
Auto Acoustic Management [Disabled]
This option allows drive noise reduction.
Configuration options: [Disabled] [Minimum] [Medium] [Maximum]
Primary/Secondary IDE Master/Slave [Auto]
Select [Auto] to automatically detect an IDE hard disk drive. If automatic
detection is successful, the BIOS automatically fills in the correct values for
the remaining fields on this sub-menu. If the hard disk was already
formatted on a previous system, the setup BIOS may detect incorrect
parameters. Select [Manual] to manually enter the IDE hard disk drive
parameters. If no drive is installed select [None].
Configuration options: [None] [Auto] [Manual]
Access Mode [Auto]
The default [Auto] allows automatic detection of an IDE hard disk drive.
Select [CHS] for this item if you set the IDE Primary Master/Slave to
[Manual]. Configuration options: [CHS] [LBA] [Large] [Auto]
Before attempting to configure a hard disk drive, make sure you have
the correct configuration information supplied by the drive
manufacturer. Incorrect settings may cause the system to fail to
recognize the installed hard disk.
2-12
Chapter 2: BIOS setup
Capacity
Displays the auto-detected hard disk capacity. This item is not
configurable.
Cylinder
Shows the number of the hard disk cylinders. This item is not configurable.
Head
Shows the number of the hard disk read/write heads. This item is not
configurable.
Sector
Shows the number of sectors per track. This item is not configurable.
PIO Mode
Sets the PIO mode for the IDE device. Configuration options: [Auto]
[Mode 0] [Mode 1] [Mode 2] [Mode 3] [Mode 4]
UDMA Mode
Disables or sets the UDMA mode. Configuration options: [Disabled] [Auto]
Transfer Mode
Shows the Transfer mode. This item is not configurable.
After entering the IDE hard disk drive information into BIOS, use a disk
utility, such as FDISK, to partition and format new IDE hard disk drives.
This is necessary so that you can write or read data from the hard disk.
Make sure to set the partition of the Primary IDE hard disk drives to
active.
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2.3.6 First, Second, Third, and Fourth SATA Master
First SATA Master
Select Menu
x Auto Acoustic Management
Disabled
[Auto]
[Auto]
Item Specific Help
Extended IDE Drive
Access Mode
Sets the type of
fixed disk connected
to the system.
Capacity
0 MB
Cylinder
Head
Precomp
Landing Zone
Sector
0
0
0
0
0
The BIOS automatically detects the values opposite the dimmed items
(Capacity, Cylinder, Head, Precomp, Landing Zone and Sector). These
values are not user-configurable. These items show 0 if no SATA device is
installed in the system.
Extended IDE Drive [Auto]
Select [Auto] to automatically detect a SATA hard disk drive. If automatic
detection is successful, Setup automatically fills in the correct values for
the remaining fields on this sub-menu. Configuration options: [None]
[Auto]
Access Mode [Auto]
Allows the user to select the sector addressing mode. Refer to the
previous page for detailed descriptions of the different modes.
Configuration options: [Large] [Auto]
Before attempting to configure a hard disk drive, make sure you have
the correct configuration information supplied by the drive
manufacturer. Incorrect settings may cause the system to fail to
recognize the installed hard disk.
2-14
Chapter 2: BIOS setup
Capacity
Displays the auto-detected hard disk capacity. This item is not
configurable.
Cylinder
Shows the number of the hard disk cylinders. This item is not configurable.
Head
Shows the number of the hard disk read/write heads. This item is not
configurable.
Precomp
Shows the number of precomp per track. This item is not configurable.
Landing Zone
Shows the number of landing zone per track. This item is not configurable.
Sector
Shows the number of sectors per track. This item is not configurable.
After entering the IDE hard disk drive information into BIOS, use a disk
utility, such as FDISK, to partition and format new IDE hard disk drives.
This is necessary so that you can write or read data from the hard disk.
Make sure to set the partition of the Primary IDE hard disk drives to
active.
2.3.7 Installed Memory
Shows the size of installed memory.
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2.4 Advanced Menu
The Advanced menu items allow you to change the settings for the CPU
and other system devices.
Take caution when changing the settings of the Advanced menu items.
Incorrect field values may cause the system to malfunction.
Select Menu
CPU Configuration
Chipset
PCIPnP
Item Specific Help
Press Enter to set.
Onboard Device Configuration
SLI Configuration
2-16
Chapter 2: BIOS setup
2.4.1 CPU configuration
The items in this menu show the CPU-related information auto-detected by
the BIOS.
Select Menu
CPU Configuration
Item Specific Help
CPU Type
CPU Speed
Cache RAM
AMD Athlon(tm) 64 Processor 3400+
2200MHz
512K
Enable/Disable
Cool`n’Quiet
function.
AMD K8 Cool ‘n’ Quiet control
[Enabled]
AMD K8 Cool ‘n’ Quiet control [Enabled]
Enables or disables the AMD K8 Cool `n’ Quiet™ feature.
Configuration options: [Enabled] ~ [Disabled]
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2.4.2 Chipset configuration
The items in this menu show the chipset configuration settings. Select an
item then press <Enter> to display a pop-up menu with the configuration
options.
Select Menu
Chipset
DRAM Configuration
[Press Enter]
[Enabled]
Item Specific Help
Errata 94 Enhanced
DRAM timing and
control.
DRAM Configuration
The items in this sub-menu show the DRAM-related information that the
BIOS auto-detects.
Select Menu
DRAM Configuration
Item Specific Help
Timing Mode
[Auto]
x Memclock index value (Mhz)
x CAS# Latency (Tcl)
200Mhz
2.5
8T
4T
2T
2T
[E0]
[Disabled]
[Continuous]
<Enter> to select DRAM
configuration. [Auto]
is recommended.
[Manual] allows you to
set each configuration
on your own.
x Min RAS# active time (Tras)
x RAS# to CAS# delay (Trcd)
x Row precharge time (Trp)
x 1/T/2T Memory Timing
Bottom of 32-bit [31:24] IO
DRAM Over 4G Remapping
MTRR mapping mode
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Chapter 2: BIOS setup
Timing Mode [Auto]
Sets the timing mode. Configuration options: [Auto] [Manual]
Memclock index value [200Mhz]
Sets the DRAM frequency.
Configuration options: [100Mhz] [133Mhz] [166Mhz] [200Mhz]
CAS# latency (Tcl) [2.5]
Sets the CAS# latency.
Configuration options: [2] [2.5] [3]
Min RAS# active time (Tras) [8T]
Sets the minimum RAS# active time.
Configuration options: [5T] ~ [15T]
RAS# to CAS# delay (Trcd) [4T]
Sets the RAS# to CAS# delay to Read/Write command on the same
bank. Configuration options: [2T] ~ [7T]
Row precharge Time (Trp) [2T]
Sets the Row precharge time.
Configuration options: [2T] ~ [7T]
1T/2T Memory Timing [2T]
Sets the memory timing. Configuration options: [1T] [2T]
The above items become configurable when the Timing Mode item is
set to [Manual]
Bottom of 32-bit [31:24] IO [E0]
Allows you to se the minumum and maximum limits of the 32-bit
memory-mapped IO location.
DRAM Over 4G Remapping [Disabled]
Enables or disables DRAM remapping when using 4 GB of system
memory. Configuration options: [Disabled] [Enabled]
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MTRR mapping mode [Continuous]
Sets the MTRR mapping mode.
Configuration options: [Continuous] [Discrete]
Errata 94 Enhanced [Auto]
Configuration options: [Auto] [Disabled]
2.4.3 PCIPnP
The items in this menu show the PCIPnP configuration settings. Select an
item then press <Enter> to display a pop-up menu with the configuration
options.
Select Menu
PCIPnP
Item Specific Help
Plug & Play O/S
[Yes]
Init Display First
[PCIEx]
Select Yes if you
are using a Plug and
Play-capable
Resources Controlled By [Auto]
x IRQ Resources
operating system.
Select No if you
need the BIOS to
configure non-boot
devices.
PCI/VGA Palette Snoop
[Disabled]
Plug & Play OS [Yes]
Select [Yes] if you are using a Plug and Play capable operating system.
Select [No] if you need the BIOS to configure non-boot devices.
Configuration options: [No] [Yes]
Init Display First [PCIEx]
Allows you to select which graphics controller to use as the primary boot
device. Configuration options: [PCI slot] [PCIEx]
Resources Controlled By [Auto
When set to [Auto(ESCD)], this allows the BIOS to automatically configure
all the boot and Plug and Play devices. When set to [Manual], you can
assign the available IRQ resources to the PCI devices.
Configuration options: [Auto] [Manual]
2-20
Chapter 2: BIOS setup
When the item Resources Controlled By is set to [Auto], the item IRQ
Resources is grayed out and is not configurable. Refer to the section
“IRQ Resources” for information on how to enable this item.
IRQ Resources
This sub-menu is activated only when the Resources Controlled By
item is set to Manual.
Select Menu
IRQ Resources
[PCI Device]
Item Specific Help
IRQ-3 assigned to
IRQ-4 assigned to
IRQ-5 assigned to
IRQ-7 assigned to
IRQ-9 assigned to
IRQ-10 assigned to
IRQ-11 assigned to
IRQ-12 assigned to
IRQ-14 assigned to
IRQ-15 assigned to
[PCI Device]
[PCI Device]
[PCI Device]
[PCI Device]
[PCI Device]
[PCI Device]
[PCI Device]
[PCI Device]
[PCI Device]
Legacy ISA for
devices compliant
with the original PC
AT bus specification,
PCI ISA PnP for
devices
compliant with the
Plug and Play
standard whether
designed for
PCI or ISA bus
architecture.
IRQ-xx assigned to
When set to [PCI Device], the specific IRQ is free for use of PCI/PnP
devices. When set to [Reserved], the IRQ is reserved for legacy ISA
devices. Configuration options: [PCI Device] [Reserved]
PCI/VGA Palette Snoop [Disabled]
Some non-standard VGA cards, like graphics accelerators or MPEG video
cards, may not show colors properly. Setting this field to [Enabled]
corrects this problem. If you are using standard VGA cards, leave this field
to the default setting [Disabled]. Configuration options: [Disabled]
[Enabled]
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2.4.4
Onboard device configuration
The items in this menu show the onboard device configuration settings.
Select an item then press <Enter> to display a pop-up menu with the
configuration options.
Onboard Device Configuration
IDE Function Setup
Select Menu
Item Specific Help
NVRAID Configuration
USB Configuration
Onboard LAN
Onboard LAN Boot ROM
AC97 Audio
[Enabled]
[Disabled]
[Enabled]
[Enabled]
[3F8/IRQ4]
[378/IRQ7]
[ECP+EPP]
3
PCI IEEE 1394a
Serial Port 1 Address
Parallel Port Address
Parallel Port Mode
ECP Mode Use DMA
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Chapter 2: BIOS setup
IDE Function Setup
This sub-menu contains IDE function-related items. Select an item then
press <Enter> to edit.
IDE Function Setup
OnChip Channel0
OnChip IDE Channel1
IDE DMA transfer access
Serial-ATA 1
SATA DMA transfer
Serial-ATA 2
SATA2 DMA transfer
IDE Prefetch Mode
Select Menu
[Enabled]
[Enabled]
[Enabled]
[Enabled]
[Enabled]
[Enabled]
[Enabled]
[Enabled]
Item Specific Help
Disable/Enable
OnChip IDE Channel0
OnChip IDE Channel0 [Enabled]
Allows you to enable or disable the onchip IDE channel 0 controller .
Configuration options: [Disabled] [Enabled]
OnChip IDE Channel1 [Enabled]
Allows you to enable or disable the onchip IDE channel 1 controller .
Configuration options: [Disabled] [Enabled]
IDE DMA transfer access [Enabled]
Allows you to enable or disable the IDE DMA transfer access.
Configuration options: [Disabled] [Enabled]
Serial-ATA 1 [Enabled]
Allows you to enable or disable the Serial ATA 1 port.
Configuration options: [Disabled] [Enabled]
SATA DMA transfer [Enabled]
Allows you to enable or disable the SATA DMA transfer access.
Configuration options: [Disabled] [Enabled]
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Serial-ATA 2 [Enabled]
Allows you to enable or disable the Serial ATA 2 port.
Configuration options: [Disabled] [Enabled]
SATA2 DMA transfer [Enabled]
Allows you to enable or disable the SATA2 DMA transfer access.
Configuration options: [Disabled] [Enabled]
IDE Prefetch Mode [Enabled]
Allows you to enable or disable the IDE prefetch mode.
Configuration options: [Disabled] [Enabled]
NVRAID Configuration
This sub-menu contains NVRAID function-related items. Select an item then
press <Enter> to edit.
Select Menu
NVRAID Configuration
Item Specific Help
RAID Enable
[Disabled]
x IDE Primary Master
x IDE Primary Slave
x IDE Secondary Master
x IDE Secondary Slave
x First SATA Master
x Second SATA Master
x Third SATA Master
x Fourth SATA Master
RAID Disabled
RAID Disabled
RAID Disabled
RAID Disabled
RAID Disabled
RAID Disabled
RAID Disabled
RAID Disabled
Disable/Enable
nVIDIA RAID feature.
RAID Enable [Disabled]
Enables or disables the onboard RAID controller. When Enabled, the
succeeding items become user-configurable.
Configuration options: [Enabled] [Disabled]
IDE Primary and Secondary Master/Slave RAID [Disabled]
Enables or disables the RAID function of the primary or secondary
master or slave IDE. Configuration options: [Enabled] [Disabled]
2-24
Chapter 2: BIOS setup
First, Second, Third, Fourth SATA Master RAID [Disabled]
Enables or disables the RAID function of the first, second, third or
fourth SATA master drive. Configuration options: [Enabled] [Disabled]
USB configuration
The items in this menu show the USB configuration settings. Select an item
then press <Enter> to display a pop-up menu with the configuration
options.
USB Configuration
Select Menu
USB Controller
USB 2.0 Controller
USB Legacy Support
[Enabled]
[Enabled]
[Enabled]
Item Specific Help
Enable/Disable USB 2.0
and Legacy Controller.
USB Controller [Enabled]
Allows you to enable or disable the onchip USB controller.
Configuration options: [Disabled] [Enabled]
USB 2.0 Controller [Enabled]
Allows you to enable or disable the USB 2.0 controller.
Configuration options: [Disabled] [Enabled]
USB Legacy Support [Enabled]
Allows you to enable or disable support for USB devices on legacy
operating systems (OS). Configuration options: [Disabled] [Enabled]
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Onboard LAN [Enabled]
Allows you to enable or disable the onboard LAN controller. Keep the
default [Enabled] if you wish to use the onboard LAN feature. Set to
[Disabled] if you installed a PCI LAN card. Configuration options: [Disabled]
[Enabled]
Onboard LAN Boot ROM [Disabled]
Setting to [Enabled] allowed the BIOS to invoke the boot ROM of the
onboard LAN chip. Configuration options: [Enabled] [Disabled]
AC97 Audio [Enabled]
Allows you to enable or disable the onboard AC`97 Audio controller.
Configuration options: [Disabled] [Enabled]
PCI IEEE 1394a [Enabled]
Allows you to enable or disable the onboard IEEE 1394a device support.
Configuration options: [Disabled] [Enabled]
Serial Port1 Address [3F8/IRQ4]
Allows you to set the addresses for the onboard serial port connector.
Configuration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4]
[2E8/IRQ3]
Parallel Port Address [378/IRQ7]
Allows you to set the base address of the onboard parallel port connector.
If you disable this field, the Parallel Port Mode and ECP DMA Select
configurations are not available. Configuration options: [Disabled]
[378/IRQ7] [278/IRQ5] [3BC/IRQ7]
Parallel Port Mode [ECP+EPP]
Allows you to set the operation mode of the parallel port.
Configuration options: [SPP] [EPP] [ECP] [ECP+EPP]
ECP Mode Use DMA [3]
Allows you to select the ECP Mode. This item becomes configurable only if
the Parallel Port Mode is set to [ECP] or [ECP+EPP]. Configuration
options: [1] [3]
2-26
Chapter 2: BIOS setup
SLI configuration
SLI Configuration
EZ-Plug Warning [Enabled]
Select Menu
Item Specific Help
EZ-Plug Warning [Enabled]
Allows you to enable or disable the EZ-Plug warning feature.
Configuration options: [Disabled] [Enabled]
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2.5 Power Menu
The Power menu allows you to reduce power consumption. This feature
turns off the video display and shuts down the hard disk after a period of
inactivity.
Select Menu
ACPI Suspend Type
ACPI APIC Support
APM Configuration
Hardware Monitor
[S3(STR)]
[Enabled]
Item Specific Help
Select the ACPI
state used for
System Suspend.
ACPI Suspend Type [S3(STR)]
Allows you to select the ACPI state used for system suspend.
Configuration options: [S1(POS)] [S3(STR)] [S1&S3]
ACPI APIC Support [Enabled]
Allows you to enable or disable the Advanced Configuration and Power
Interface (ACPI) support in the Advanced Programmable Interrupt
Controller (APIC). When set to Enabled, the ACPI APIC table pointer is
included in the RSDT pointer list. Configuration options: [Disabled]
[Enabled]
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Chapter 2: BIOS setup
2.5.1 APM configuration
This menu shows the Advanced Power Management (APM) configuration
settings. Select an item then press <Enter> to display a pop-up menu with
the configuration options.
Select Menu
APM Configuration
Restore on AC Power Loss
PWR Button < 4 secs
WOL (PME#) From Soft-Off
WOR (RI#) From Soft-Off
Power-On by Alarm
Item Specific Help
[Enabled]
[Instant-Off]
[Enabled]
[Enabled]
[Disabled]
0
Press [Enter] to
select whether or
not to restart the
system after AC
power loss.
x Date (of Month)
x Time (hh:mm:ss) Alarm
Power Up By PS2 Keyboard
Power Up By PS2 Mouse
0 : 0 : 0
[Disabled]
[Disabled]
Restore on AC Power Loss [Enabled]
Allows you to set whether or not to reboot the system after power
interruptions. [Disabled] leaves your system off while [Enabled] reboots
the system. Configuration options: [Disabled] [Enabled]
PWR Button < 4 secs [Instant-Off]
Allows you to set the event after the power button is pressed for more
than 4 seconds. Configuration options: [Suspend] [Instant-Off]
WOL (PME#) From Soft-Off [Enabled]
Allows you to enable or disable the Wake-On-LAN feature. This feature
requires an ATX power supply that provides at least 1A on the +5VSB lead.
Configuration options: [Disabled] [Enabled]
WOR (RI#) From Soft-Off [Enabled]
Allows you to enable or disable the Wake-On-Ring feature. This feature
requires an ATX power supply that provides at least 1A on the +5VSB lead.
Configuration options: [Disabled] [Enabled]
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Power-On By Alarm [Disabled]
Allows you to enable or disable RTC to generate a wake event. When this
item is set to Enabled, the items Date of Month Alarm and Time (hh:mm:ss)
Alarm items become user-configurable with set values.
Configuration options: [Disabled] [Enabled]
The two succeeding items become configurable only when the
Power-On By RTC Alarm item is set to [Enabled].
Day of Month Alarm [0]
To set the date of alarm, highlight this item and press <Enter> to display
the Day of Month Alarm pop-up menu. Key-in a value within the specified
range then press <Enter>. A [0] value means everyday. Configuration
options: [Min=0] [Max=31]
Time (hh:mm:ss) Alarm [0:0:0]
To set the time of alarm:
1. Highlight this item and press <Enter> to display a pop-up menu for the
hour field.
2. Key-in a value (Min=0, Max=23), then press <Enter>.
3. Press <TAB> to move to the minutes field then press <Enter>.
4. Key-in a minute value (Min=0, Max=59), then press <Enter>.
5. Press <TAB> to move to the seconds field then press <Enter>.
6. Key-in a value (Min=0, Max=59), then press <Enter>.
Power Up By PS2 Keyboard [Disabled]
Allows you to disable the Power On by PS/2 keyboard function or set
specific keys on the PS/2 keyboard to turn on the system. This feature
requires an ATX power supply that provides at least 1A on the +5VSB lead.
Configuration options: [Disabled] [Enabled]
Power Up By PS2 Mouse [Disabled]
When set to [Enabled], this parameter allows you to use the PS/2 mouse
to turn on the system. This feature requires an ATX power supply that
provides at least 1A on the +5VSB lead. Configuration options: [Disabled]
[Enabled]
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Chapter 2: BIOS setup
2.5.2 Hardware monitor
This menu shows the hardware monitor settings auto-detected by the
BIOS.
Hardware Monitor
Select Menu
Q-Fan Controller
[Enabled]
1.50V
Item Specific Help
Vcore Voltage
3.3V Voltage
5V Voltage
Press [Enter] to
enable or disable.
3.31V
4.94V
12V Voltage
11.26V
CPU Temperature
M/B Temperature
CPU FAN Speed
48ºC
38ºC
4962 RPM
0 RPM
CHA1 FAN Speed
CPU Target Temperature
[66ºC]
Q-Fan Controller [Enabled]
Allows you to enable or disable the Q-Fan controller.
Configuration options: [Disabled] [Enabled]
VCORE Voltage, +12V Voltage, 3.3V Voltage, 5VCC
Voltage
The onboard hardware monitor automatically detects the voltage output
through the onboard voltage regulators. These items are not
user-configurable.
CPU Temperature, M/B Temperature
The onboard hardware monitor automatically detects and displays the
motherboard and CPU temperatures. These items are not user-configurable.
CPU Fan Speed/CHA1 Fan Speed
The onboard hardware monitor automatically detects and displays the
Chassis, CPU, and Chip fan speeds in rotations per minute (RPM). If the fan
is not connected to the motherboard, the field shows 0. These items are
not user-configurable.
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CPU Target Temperature [66ºC]
Allows you to set the CPU temperature threshold. When the CPU
temperature reaches the value you set, the CPU fan runs at full speed.
Configuration options: [51ºC] [54ºC] [57ºC] [60ºC] [63ºC] [66ºC] [69ºC]
[72ºC] [75ºC] [78ºC] [81ºC]
This item becomes configurable only when the Q-Fan Controller item
is set to [Enabled].
2.6 Boot Menu
This Boot menu items allow you to change the system boot settings.
Select an item then press <Enter> to display a pop-up menu with the
configuration options.
Select Menu
Boot Device Priority
Hard Drisk Drives
Boot Settings Configuration
Security
Item Specific Help
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Chapter 2: BIOS setup
2.6.1 Boot Device Priority
Boot Device Priority
Select Menu
1st Boot Device
2nd Boot Device
3rd Boot Device
4th Boot Device
[CDROM]
Item Specific Help
[Removable]
[Hard Disk]
[Disabled]
Select your boot
device priority.
1st ~ xth Boot Device
These items specify the boot device priority sequence from the available
devices. The number of devices that appears on the screen depends on the
number of devices installed in the system. Configuration options:
[Removable] [Hard Disk] [CDROM] [Legacy LAN] [Disabled]
2.6.2 Hard Disk Drives
Select Menu
Hard Disk Drives
1. 1st Master: ST320410A
Item Specific Help
2. Bootable Add-in Cards
Use <up> or <down>
arrow to select a
device, then press
<+> to move it up,
or <-> to move it
down the list. Press
<ESC> to exit this
menu.
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2.6.3 Boot settings configuration
Select Menu
Boot Settings Configuration
Item Specific Help
Case Open Warning
Quick Boot
[Disabled]
[Enabled]
[Enabled]
[On]
[Non-OS2]
[Enabled]
[No Errors]
Press [Enter] to
enable or disable.
Boot Up Floppy Seek
Bootup Num-Lock
OS Select for DRAM > 64MB
Full Screen Logo
Halt On
Case Open Warning [Enabled]
Enables or disables the chassis open status feature. Setting to Enabled,
clears the chassis open status. Refer to section “2.7 Internal connectors”
for setting details. Configuration options: [Disabled] [Enabled]
Quick Boot [Enabled]
Setting to [Enabled] allows the system to skip certain tests while booting,
decreasing the time needed to boot the system.
Configuration options: [Disabled] [Enabled]
Boot Up Floppy Seek [Enabled]
When [Enabled], the BIOS will seek the floppy disk drive to determine
whether the drive has 40 or 80 tracks. Configuration options: [Disabled]
[Enabled]
Bootup Num-Lock [On]
Allows you to select the power-on state for the NumLock.
Configuration options: [Off] [On]
OS Select for DRAM > 64MB [Non-OS2]
Select [OS2] only when you are using an OS2 operating system with
greater than 64MB RAM; otherwise, set to [Non-OS2].
Configuration options: [Non-OS2] [OS2]
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Chapter 2: BIOS setup
Full Screen Logo [Enabled]
Allows you to enable or disable the full screen logo display feature.
Configuration options: [Disabled] [Enabled]
Set this item to [Enabled] to use the ASUS MyLogo™ feature.
Halt On [No Errors]
Sets the system to halt on errors according to the system functions
specified in each option. Configuration options: [All Errors] [No Errors]
[All, But Keyboard] [All , But Diskette] [All, But Disk/Key]
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2.6.4 Security
Security
Select Menu
Supervisor Password
User Password
Clear
Clear
Item Specific Help
Password Check
[Setup]
Supervisor password
controls full
access. <Enter> to
change password.
Supervisor Password [Clear]
User Password [Clear]
These fields allow you to set passwords.
To set a password:
1. Highlight an item then press <Enter>.
2. Type in a password using eight (8) alphanumeric characters, then
press <Enter>.
3. When prompted, confirm the password by typing the exact characters
again, then press <Enter>. The password field setting is changed to
[Set].
To clear the password:
1. Highlight the password field, and press <Enter> twice. The following
message appears:
“PASSWORD DISABLED!!! Press any key to continue...”
2. Press any key to return to the menu.
A note about passwords
The Supervisor password is required to enter the BIOS Setup program
preventing unauthorized access. The User password is required to boot the
system preventing unauthorized use.
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Chapter 2: BIOS setup
Forgot the password?
If you forget your password, you can clear it by erasing the CMOS Real
Time Clock (RTC) RAM. The RAM data containing the password
information is powered by the onboard button cell battery. If you need
to erase the CMOS RAM, refer to section “1.6 Jumpers” for
instructions.
Password Check [Setup]
This field requires you to enter the password before entering the BIOS
setup or the system. Select [Setup] to require the password before
entering the BIOS Setup. Select [System] to require the password before
entering the system. Configuration options: [Setup] [System]
2.7 Exit menu
The Exit menu items allow you to load the BIOS setup default settings,
save or discard any changes you made, or exit the Setup utility.
Select Menu
Exit & Save Changes
Exit & Discard Changes
Load Setup Default
Discard Changes
Item Specific Help
This option saves
data to CMOS and
exits the setup
menu.
Exit & Save Changes
Select this option then press <Enter>, or simply press <F10>, to save your
changes to CMOS before exiting the Setup utility.
When a confirmation window appears (with a blinking [Y]):
• press <Enter> to save and exit
• type [N], then press <Enter>, or simply press <Esc>, to cancel the
command and return to the Exit menu
ASUS A8N-SLI
2-37
Exit & Discard Changes
Select this option only if you do not want to save the changes that you
made to the Setup program. If you made changes to fields other than
system date, system time, and password, the BIOS asks for a confirmation
before exiting.
Load Setup Defaults
This option allows you to load the default values for each of the
parameters on the Setup menus. When you select this option or if you
press <F5>, a confirmation window appears. Select [Yes] to load default
values. Select Exit Saving Changes or make other changes before saving
the values to the non-volatile RAM.
Discard Changes
This option allows you to discard the selections you made and restore the
previously saved values. After selecting this option, a confirmation appears.
Select [Yes] to discard any changes and load the previously saved values.
2-38
Chapter 2: BIOS setup
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