Philips Computer Hardware EPIA MII User Manual

User’s Manual  
EPIA-MII  
Mini-ITX Mainboard  
Version 1.50  
August 26, 2004  
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FCC-B Radio Frequency Interference Statement  
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 when  
the equipment is operated in a commercial environment. This equipment  
generates, uses and can radiate radio frequency energy and, if not installed  
and used in accordance with the instruction manual, may cause harmful  
interference to radio communications. Operation of this equipment in a  
residential area is likely to cause harmful interference, in which case the user  
will be required to correct the interference at his own expense.  
Notice 1  
The changes or modifications not expressly approved by the party  
responsible for compliance could void the user’s authority to operate the  
equipment.  
Notice 2  
Shielded interface cables and A.C. power cord, if any, must be used in order  
to comply with the emission limits.  
iii  
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Safety Instructions  
1. Always read the safety instructions carefully.  
2. Keep this User’s Manual for future reference.  
3. Keep this equipment away from humidity.  
4. Lay this equipment on a reliable flat surface before setting it up.  
5. The openings on the enclosure are for air convection hence protects the  
equipment from overheating. DO NOT COVER THE OPENINGS.  
6. Make sure the voltage of the power source and adjust properly 110/220V  
before connecting the equipment to the power inlet.  
7. Place the power cord in such a way that people cannot step on it. Do not  
place anything over the power cord.  
8. Always unplug the power cord before inserting any add-on card or  
module.  
9. All cautions and warnings on the equipment should be noted.  
10. Never pour any liquid into the opening. Liquid can cause damage or  
electrical shock.  
11. If any of the following situations arises, get the equipment checked by a  
service personnel:  
• The power cord or plug is damaged  
• Liquid has penetrated into the equipment  
• The equipment has been exposed to moisture  
• The equipment has not work well or you can not get it work according  
to User’s Manual.  
• The equipment has dropped and damaged  
• If the equipment has obvious sign of breakage  
12. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT  
0
UNCONDITIONED, STORAGE TEMPERATURE ABOVE 60 C  
0
(140 F), IT MAY DAMAGE THE EQUIPMENT.  
CAUTION: Explosion or serious damage may occur if the battery is  
incorrectly replaced. Replace only with the same or equivalent type  
recommended by the manufacturer.  
iv  
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Box Contents  
• 1 x VIA Mainboard  
• 1 x Quick Installation Guide  
• 1 x Floppy Ribbon Cable  
• 1 x ATA-66/100/133 IDE Ribbon Cable  
• 1 x I/O Bracket  
• 1 x Driver Utilities CD  
v
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vi  
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Table of Contents  
Chapter 1: Specifications ........................................1-1  
Mainboard Specifications..........................................................1-2  
Mainboard Layout .....................................................................1-4  
Back Panel Ports ......................................................................1-6  
Slots..........................................................................................1-6  
Onboard Connectors and Jumpers...........................................1-7  
Chapter 2: Installation..............................................2-1  
CPU Installation ........................................................................2-2  
Memory Module Installation......................................................2-4  
Connecting the Power Supply...................................................2-6  
Back Panel Ports ......................................................................2-7  
Connectors..............................................................................2-11  
Jumpers ..................................................................................2-19  
Slots........................................................................................2-20  
Chapter 3: BIOS Setup.............................................3-1  
Entering Setup ..........................................................................3-2  
Control Keys .............................................................................3-2  
Getting Help..............................................................................3-3  
The Main Menu.........................................................................3-4  
Standard CMOS Features ........................................................3-6  
Advanced BIOS Features .........................................................3-8  
Advanced Chipset Features....................................................3-12  
Integrated Peripherals.............................................................3-14  
Power Management Setup .....................................................3-18  
PnP / PCI Configurations........................................................3-24  
PC Health Status ....................................................................3-27  
Frequency / Voltage Control ...................................................3-28  
Load Fail-Safe Defaults ..........................................................3-30  
Load Optimized Defaults.........................................................3-31  
Set Supervisor / User Password.............................................3-32  
Save & Exit Setup...................................................................3-34  
Exit Without Saving.................................................................3-35  
Chapter 4: Driver Installation ..................................4-1  
Driver Utilities............................................................................4-2  
CD Content ...............................................................................4-3  
vi  
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Chapter  
Specifications  
The ultra-compact and highly intergrated VIA  
EPIA-MII Mini-ITX Mainboard is the smallest  
form factor mainboard specification available  
today, developed by VIA Technologies, Inc. as part  
of the company’s open industry-wide total  
connectivity initiative. The mainboard enables the  
creation of an exciting new generation of small,  
ergonomic, innovative and affordable embedded  
systems. Through high level of integration, mini-  
ITX only occupy 66% of the size of FlexATX  
mainboard form factor. The mainboard comes with  
an embedded VIA Processor, boasting ultra low  
power consumption and cool, quiet operation.  
This chapter includes the following sections:  
Mainboard Specifications  
Mainboard Layout  
Back Panel Ports  
Slots  
1-2  
1-4  
1-6  
1-6  
1-7  
Connectors / Jumpers  
1-1  
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Chapter 1  
Mainboard Specifications  
CPU  
• VIA C3 / EDEN EBGA Processor (onboard)  
• Enhanced Ball Grid Array Package (EBGA)  
• Internal L1 128KB and L2 64KB cache memory  
Chipset  
• VIA CLE266 North Bridge  
• VT8235 South Bridge  
Memory  
• 1 x DDR266 DIMM socket (up to 1 GB)  
Expansion Slots  
• 1 x PCI  
Graphics  
• Integrated VIA Castlerock AGP graphics  
Audio  
• VT1616, six-channel AC’97 Codec  
Onboard IEEE 1394 (optional)  
• VIA VT6307S IEEE 1394  
LAN  
• VIA VT6103 10/100 Base-T Ethernet PHY  
IDE  
• 2 X UltraDMA 66/100/133 Connectors  
OnModule CardBus/CF  
• RICOH 476II  
LVDS (optional)  
VIA VT1631 LVDS Transmitter  
1-2  
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Specifications  
Back Panel I/O Ports  
• 1 x PS2 mouse port  
• 1 x PS2 keyboard port  
• 1 x VGA port  
• 1 x S-Video port  
• 1 x RCA port (SPDIF or TV-out)  
• 1 x RJ-45 LAN port  
• 2 x USB 2.0/1.1 ports  
• 1 x 1394 port  
• 1 x Cardbus slot & CF slot  
• 1 x Serial port  
• 3 x Audio jacks: line-out, line-in and mic-in  
Onboard I/O Connectors  
• 1 x USB 2.0/1.1 connector (USB 2.0 support included in South Bridge)  
• 1 x 1394 connector (optional)  
• 1 x CD Audio-in connector  
• 1 x Front audio connector  
• 1 x FIR connector  
• 1 x KBMS connector  
• 1 x Wake-on-LAN connector  
• 3 x Fan connectors (CPU Fan, System Fan, Fan 3)  
• 1 x LVDS connector (optional)  
• 1 x Serial port connector for second COM port  
• 1 x LPT port connector  
• 1 x SMBus connector  
• 1 x Video feature connector support (optional)  
BIOS  
Award BIOS on 2/4Mbit flash memory  
Form Factor  
• 17 cm X 17 cm Mini-ITX (6 layers)  
1-3  
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Chapter 1  
Mainboard Layout  
ATXPWR  
CPU  
CPUFAN  
DIMM  
Top: Mouse  
Bottom: Keyboard  
SYSFAN  
COM2  
Top: COM1  
Bottom: VGA  
SMBUS  
Top: RJ45  
Bottom: USB  
FIR  
SPDIF_SEL  
LPT  
CLE266  
S-Video  
LVDS  
IDE1  
IDE2  
RCA / SPDIF  
Line-out  
Line-in  
CMOS  
Battery  
USB 3/4  
KBMS  
CLEAR_CMOS  
Microphone  
1394  
Cardbus & CF  
FDD  
BIOS  
Socket  
F_AUDIO  
CD_IN  
1394_2  
WOL FAN3  
PCI  
F_PANEL  
Back Panel  
PS2_MS  
COM1  
RJ45  
Cardbus  
CF  
PS2_KB  
VGA Out  
USB  
S-Video RCA / SPDIF Line-Out Line-In Microphone 1394  
1-4  
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Specifications  
Add-On Module  
CF  
Cardbus  
Placement of Add-On Module  
CLE266  
1-5  
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Chapter 1  
Back Panel Ports  
Port  
Description  
Page  
2-9  
2-9  
2-9  
2-9  
2-9  
2-7  
2-7  
2-8  
2-8  
2-8  
2-8  
2-8  
1394  
IEEE1394 (Firewire) port  
Line-Out, Line-In, Microphone  
PCMCIA Type II card slot  
CF Slot  
Audio Jacks  
Cardbus Slot  
CF Slot  
COM 1  
Serial port  
PS2-MS  
PS2-KB  
RCA_JACK  
RJ45  
PS2 mouse port  
PS2 keyboard port  
RCA Video or SPDIF jack  
10/100 NIC port  
S-VIDEO  
USB 1-2  
VGA Out  
S-Video Port  
Universal Serial Bus ports 1 - 2  
VGA out port  
Slots  
Slot  
Description  
Page  
2-4  
DIMM 1  
PCI  
Memory module slot  
Expansion card slot  
2-19  
1-6  
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Specifications  
Onboard Connectors and Jumpers  
Connecter/Jumper Description  
Page  
2-16  
2-6  
1394_2  
ATXPWR  
CD_IN  
IEEE 1394 connector  
ATX power cable connector  
Onboard CD audio cable connector  
2-15  
CLEAR_CMOS  
COM2  
Jumper to reset CMOS settings to default 2-18  
Second serial port connector  
Front audio connector  
2-14  
2-15  
2-11  
2-2  
F_AUDIO  
F_PANEL  
Fans  
Case connector  
CPU Fan, System Fan, Fan 3  
Floppy disk drive connector  
Infrared Radiation connector  
SM Bus connector  
FDD  
2-14  
2-12  
2-16  
2-10  
2-12  
2-16  
2-17  
2-18  
2-13  
2-13  
FIR  
SMBUS  
IDE 1 & 2  
KBMS  
IDE hard disk drive connectors  
CIR/PS2(EXT_KBMS) connector  
LPT port connector  
LPT  
LVDS  
LVDS connector  
SPDIF_SEL  
USB 3/4  
WOL  
Sony Philips Digital Interface jumper  
Universal Serial Bus connector  
Wake On LAN connector  
1-7  
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Chapter 1  
1-8  
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Chapter  
Installation  
This chapter provides you with information about  
hardware setup procedures. While installing the  
mainboard, carefully hold the components and  
closely follow the installation procedures. Some  
components may be damaged if they are installed  
incorrectly.  
It is recommended to use a grounded wrist strap  
before handling computer components. Static  
electricity can damage some components.  
This chapter includes the following sections:  
CPU  
2-2  
Memory Module Installation  
Connecting the Power Supply  
Back Panel Ports  
Connectors  
2-4  
2-6  
2-7  
2-11  
2-19  
2-20  
Jumpers  
Slots  
2-1  
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Chapter 2  
CPU  
The VIA EPIA-MII Mini-ITX Mainboard includes an embedded VIA Eden  
Processor or VIA C3TM E-Series Processor. The CPUFAN (CPU fan) and  
SYSFAN (system fan) run on +12V and maintain system cooling. When  
connecting the wire to the connectors, always be aware that the red wire is  
the Positive and should be connected to the +12V. The black wire is Ground  
and should be connected to GND. Both CPU and System fan connectors  
have sensors to detect fan speed.  
Sensor  
+12V  
GND  
SYSFAN  
CPUFAN  
CLE266  
PWRFAN  
TM  
The VIA C3 E-Series Processor  
With low power consumption and advanced  
thermal dissipation properties, the embedded  
VIA C3TM E-Series requires only a small fan to  
guarantee performance and reliability. Ensure  
that the CPU Fan Connector is correctly  
installed as shown.  
2-2  
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Installation  
The VIA Eden Processor  
Providing ultra-low power consumption  
and advanced thermal dissipation  
properties, the VIA Eden Processor  
features a fanless design. The VIA Eden  
Processor requires only a heatsink as  
shown.  
Warning: This motherboard is not designed to support overclocking. Any attempt to  
operate beyond product specifications is not recommended. We do not guarantee  
the damages or risks caused by operation beyond product specifications.  
2-3  
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Chapter 2  
Memory Module Installation  
The VIA EPIA-MII Mini-ITX Mainboard provides one DIMM slot for  
DDR266 SDRAM memory modules.  
CLE266  
DDR SDRAM Module Installation Procedures  
1. Push the white retaining latches at either end of the DIMM slot outwards.  
2. Align the DDR SDRAM module with the corresponding notches on the  
DIMM slot. The modules will only fit if placed in the correct position.  
3. With both hands, press the DDR SDRAM module down into the DIMM  
slot so that the white retaining latches rotate up and secure the module in  
place (see picture below).  
2-4  
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Installation  
Available DDR SDRAM Configurations  
Refer to the table below for available DDR SDRAM configurations on the  
mainboard.  
Slot  
Memory Module  
Total Memory  
64 MB - 1 GB  
DIMM  
(Bank 0 & 1)  
64MB, 128MB, 256MB, 512MB,  
1GB  
Maximum System Memory Supported  
64 MB - 1 GB  
2-5  
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Chapter 2  
Connecting the Power Supply  
The VIA EPIA-MII Mini-ITX Mainboard requires an ATX power supply to  
be connected. Before inserting the power supply connector, always make  
sure that all components are installed correctly to ensure that no damage will  
be caused.  
ATX 20-Pin Power Connector  
To connect the ATX power supply, make sure the plugs of the power supply  
are inserted in the proper orientation and the pins are correctly aligned.  
Then, push down the power supply plug firmly into the connector.  
Pin  
1
Signal  
3.3V  
3.3V  
GND  
5V  
1
10  
20  
2
3
11  
4
5
GND  
5V  
6
7
GND  
PW_OK  
5V_SB  
12V  
8
9
CLE266  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
3.3V  
-12V  
GND  
PS_ON  
GND  
GND  
GND  
NC  
5V  
5V  
2-6  
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Installation  
Back Panel Ports  
The back panel has the following ports:  
PS2_MS  
COM1  
RJ45  
Cardbus  
CF  
PS2_KB  
VGA Out  
USB  
S-Video  
RCA / SPDIF  
Line-Out Line-In Microphone 1394  
Mouse Port: PS2_MS  
The mainboard provides a standard PS/2 mouse connector for attaching a  
PS/2 mouse. You can plug a PS/2 mouse directly into this connector. The  
connector location and pin assignments are as follows.  
Pin Signal  
Description  
Mouse data  
No connection  
Ground  
1
2
3
4
5
6
Mouse DATA  
6
5
NC  
4
3
GND  
2
1
VCC  
+5V  
PS2 Mouse (6-pin female)  
Mouse Clock  
NC  
Mouse clock  
No connection  
Keyboard Port: PS2_KB  
The mainboard provides a standard PS/2 keyboard connector for attaching a  
PS/2 keyboard. You can plug a PS/2 keyboard directly into this connector.  
Pin Signal  
Description  
1
2
3
4
5
6
Keyboard DATA Keyboard data  
6
5
NC  
No connection  
Ground  
4
3
GND  
VCC  
2
1
+5V  
PS2 Keyboard (6-pin female)  
Keyboard Clock Keyboard clock  
NC No connection  
2-7  
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Chapter 2  
VGA Out  
A DB-15 pin female connector that connects to a  
VGA monitor.  
USB Ports  
The mainboard provides 2 USB 2.0/1.1 ports (plus 1 pin-header for up to 2  
additional USB 2.0/1.1 ports). USB-compatible devices can be plugged  
directly into these ports.  
Pin Signal  
Description  
1
2
3
4
1
2
3
4
VCC  
+5V  
-DATA  
Negative Data Channel  
+DATA Positive Data Channel  
GND Ground  
RJ45 10/100 NIC Port  
The mainboard provides one standard RJ-  
45 port for connection to the Local Area  
Network (LAN). You can connect a  
network cable to the LAN port.  
S-Video Port  
This port allows S-Video output in NTSC  
and PAL modes.  
RCA Video or S/PDIF Port  
This dual function port may be used either  
as a RCA Video port or as a S/PDIF port.  
See SPDIF_SEL in the Jumpers section for  
more details.  
2-8  
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Installation  
IEEE 1394 Port  
The mainboard provides one standard 1394 port. You can  
connect any 1394 (Firewire) device to this port.  
Serial Port: COM1  
The mainboard offers one 9-pin male Serial Port connector COM1. You can  
attach a serial mouse or other serial devices directly to these port.  
Pin Signal  
Description  
1
2
3
4
5
6
7
8
9
DCD  
SIN  
Data Carry Detect  
Serial In or Receive Data  
Serial Out or Transmit Data  
Data Terminal Ready  
Ground  
1
5
SOUT  
DTR  
GND  
DSR  
RTS  
CTS  
RI  
6
9
Data Set Ready  
Request To Send  
Clear To Send  
9-Pin Serial Port  
Ring Indicate  
Card Slots: PCMCIA, CF  
The mainboard comes with an add-on card that provides support for  
PCMCIA and CF cards. The CF slot supports both type I and type II. These  
slots are accessed on the same side as the ports.  
2-9  
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Chapter 2  
Audio Jacks: Line-In, Line-Out, Microphone  
Jack  
2-Channel  
6-Channel  
Line-In  
Line-Out  
Mic  
Line in  
Rear (Left / Right)  
Front (Left / Right)  
Center / Subwoofer  
Line out  
Microphone  
Line-Out Line-In Microphone  
The Line-Out jack is for connecting to external speakers or headphones.  
The Line-In jack is for connecting to an external audio device such as a CD  
player, tape player, etc....  
The Mic jack is for connecting to a microphone.  
Note: The Audio ports can be switched to Smart 5.1 6-channel audio output. You  
can enable the function by clicking the “Vinyl Audio” icon on your desktop after  
installing the audio driver.  
After completing the previous settings, you need to connect your speakers to  
the audio jacks as shown below.  
PS2_MS  
COM1  
RJ45  
Cardbus  
CF  
PS2_KB  
VGA Out  
USB  
S-Video RCA / SPDIF Line-Out Line-In Microphone 1394  
2-10  
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Installation  
Connectors  
Hard Disk Connectors: IDE1 & IDE2  
The mainboard has a 32-bit Enhanced PCI IDE and Ultra DMA 66/100  
controller that provides PIO mode 0~4, Bus Master, and Ultra DMA 66/100  
functions. You can connect up to four hard disk drive, CD-ROM, LS-120  
and other devices. These connectors utilize the provided IDE hard disk  
cable.  
IDE 1  
CLE266  
IDE 2  
IDE1 (Primary IDE Connector)  
The first hard drive should always be connected to  
IDE1. IDE1 can connect a Master and a Slave drive.  
You must configure the second hard drive to Slave  
mode by setting the jumper accordingly.  
IDE2 (Secondary IDE Connector)  
IDE2 can also connect a Master and a Slave drive.  
If you install two hard disks on a single cable, you must set the jumper on the  
second hard disk drive to slave mode. Please refer to the hard disk  
documentation supplied by hard disk vendor for the jumper settings.  
2-11  
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Chapter 2  
Case Connector: F_PANEL  
The F_PANEL connector block allows you to connect to the power switch,  
reset switch, power LED, HDD LED, SLED and the Speaker on the case.  
2
1
16  
15  
Pin Signal  
Pin Signal  
1
PWR LED+  
2
4
6
8
HDD LED+  
3
PWR LED+  
PWR LED-  
SPEAKER+  
NC  
HDD LED-  
PW_BN+  
PW_BN-  
5
7
9
10 RESET+  
12 RESET-  
CLE266  
11  
NC  
13 SPEAKER-  
15 NC  
14 SLP_LED+  
16 SLP_LED-  
Power Switch (PW_BN)  
Connect to a 2-pin push button switch. Pressing this button will turn the  
system power on or off.  
Reset Switch (RESET)  
The Reset Switch is used to reboot the system rather than turning the power  
ON/OFF. Avoid rebooting while the HDD is working. You can connect the  
Reset Switch from the system case to this pin.  
Power LED (PWR LED)  
The LED is lit when the system is power on. If the system is in S1 (POS -  
Power On Suspend) or S3 (STR - Suspend To RAM) state, the LED will  
blink.  
HDD LED  
HDD LED shows the activity of a hard disk drive. Avoid turning the power  
off while HDD LED is lit. Connect the HDD LED from the system case to  
this pin.  
SLP_LED  
The SLP_LED is lit when the system is in the S1 (POS - Power On Suspend)  
state.  
Speaker  
The speaker from the system case is connected to this pin  
2-12  
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Installation  
IrDA Infrared Module Connector: FIR  
This connector allows you to connect an IrDA Infrared module. You must  
configure the setting through the BIOS setup to activate the IR function.  
Pin  
1
Signal  
VCC  
FIR  
1
2
IRRX2  
IRRX  
GND  
3
CLE266  
5
4
5
IRTX  
Consumer Infrared Module / PS2 Header: KBMS  
When the header is not in use, please short pin 3&5, pin 4&6, pin 7&9, and  
pin 8&10.  
Pin Signal  
Pin Signal  
1
3
5
7
9
+5V  
2
4
GND  
KB_CLK  
KB_DATA  
EXT_KBDATA  
MS_DATA  
EXT_KBCLK 6  
MS_CLK  
CLE266  
8
EXT_MSCLK 10 EXT_MSDATA  
CIR / EXT. KBMS  
10  
2
9
1
2-13  
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Chapter 2  
USB pin-header: USB3/4  
The mainboard provides 1 USB pin-header connector, allowing up to 2  
additional USB ports. Please plug the USB 2-port module onto this pin-  
header.  
Pin Signal  
Pin Signal  
1
3
5
7
9
VCC  
2
4
6
8
VCC  
USB2 -  
USB2 +  
GND  
USB 3 -  
USB 3 +  
GND  
CLE266  
NC  
10 GND  
10  
9
1
2
USB 3/4  
Wake-on LAN: WOL  
This connector allows you to connect a network card with the Wake-On  
LAN function. The connector will power up the system when a signal is  
received through the network card. Please note that the function of ACPI  
WOL may be disabled when users unplug the power cord or turn off the  
power button manually.  
WOL  
CLE266  
2-14  
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Installation  
COM2: The Second Serial Port  
COM2 is a pin header for second serial port.  
Pin Signal Description  
9
1
1
2
3
4
5
6
7
8
9
DCD  
SIN  
Data Carry Detect  
Serial In or Receive Data  
2
SOUT Serial Out or Transmit Data  
COM2  
DTR  
GND  
DSR  
RTS  
CTS  
RI  
Data Terminal Ready  
Ground  
Data Set Ready  
Request To Send  
Clear To Send  
Ring Indicate  
CLE266  
Floppy Disk Drive Connector: FDD  
The floppy disk drive connector supports 360K, 720K, 1.2M. 1.44M, and  
2.88M floppy disk types.  
CLE266  
2-15  
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Chapter 2  
CD Audio Connector: CD_IN  
This connector is for the CD-ROM audio connector.  
CLE266  
CD_IN  
Front Audio Panel: F_AUDIO  
This connector allows you to connect a front audio panel to the mainboard.  
Only the line-out and microphone functions are available for use on the front  
panel. To connect the front audio cable, first remove the two red plastic  
jumpers.  
Pin Signal  
Pin Signal  
1
3
5
7
9
FRN_MIC  
2
AGND  
+5V  
AUD_MIC_BIAS  
LINE_OUT_R  
NC  
4
6
NEXT_R  
Blank  
CLE266  
8
LINE_OUT_L  
10  
NEXT_L  
2
1
10  
9
F_AUDIO  
2-16  
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Installation  
SMBus Connector: SMBus  
This is for connecting a SMBus device.  
Pin Signal  
SMBUS  
1
2
3
4
5
6
+3.3V  
1
+3.3V  
CLE266  
EL-ON  
SMBCK  
SMBDT  
GND  
6
LPT Pin Header: LPT  
The mainboard provides a pin header to attach a parallel port.  
2
26  
25  
Pin Signal  
Pin Signal  
1
STROBE  
2
AUTO FEED#  
1
3
DATA0  
DATA1  
DATA2  
DATA3  
DATA4  
DATA5  
DATA6  
DATA7  
ACK#  
4
ERR#  
INIT#  
SLIN#  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
NC  
LPT  
5
6
7
8
9
10  
12  
14  
16  
18  
20  
22  
24  
26  
11  
13  
15  
17  
19  
21  
23  
25  
CLE266  
BUSY  
PE  
SELECT  
2-17  
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Chapter 2  
1394 Port Connector: 1394_2  
The mainboard provides a connector to  
attach an additional 1394 port.  
Pin Signal  
Pin Signal  
CLE266  
1
3
5
7
9
TPA0+  
GND  
2
TPA0-  
4
GND  
TPB0+  
1394_VDD  
GND  
6
TPB0-  
8
1394_VDD  
10  
2
1
1394_2  
LVDS Connector (Optional)  
9
This connector allows you to connect to a LVDS module.  
The LVDS connector may not be available on your mainboard. This is an  
option that is added during the manufacturing process. If you would like a  
mainboard with the LVDS connector, please contact your vendor or sales  
contact for more information.  
Pin Signal  
Pin Signal  
1
GFPDE  
GFPD0  
GFPD1  
GFPD2  
GFPHS  
GFPVS  
GFPD11  
GFPD12  
ENPVDD  
ENPVEE  
FPBKLP  
PWRGD_SB  
SPCLK2  
SPD2  
2
GFPD3  
LVDS  
3
4
GFPD4  
5
6
GFPD5  
7
8
GFPCLK  
GFPD6  
9
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
32  
34  
36  
38  
40  
11  
13  
15  
17  
19  
21  
23  
25  
27  
29  
31  
33  
35  
37  
39  
GFPD7  
GFPD8  
GFPD9  
CLE266  
GFPD10  
GFPD13  
GFPD14  
GFPD15  
GFPD16  
GFPD17  
GFPD18  
GFPD19  
GFPD20  
GFPD21  
GFPD22  
GFPD23  
GND  
GND  
3.3V  
GND  
5V  
5V  
2-18  
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Installation  
Jumpers  
The mainboard provides jumpers for setting the mainboard’s functions. This  
section will explain how to change settings for your mainboard’s functions  
through the use of the jumpers.  
Clear CMOS: CLEAR_CMOS  
The onboard CMOS RAM stores system configuration data and has an  
onboard battery power supply. The long-life battery has a lifetime of at least  
5 years. If you want to clear the system configuration data from the CMOS  
RAM, use the CLEAR_CMOS (Clear CMOS jumper). You can clear the  
CMOS by shorting pins 1 and 2 while the system is off. Then return it to the  
2-3 pin position. Shorting the jumper while the system is on will damage the  
mainboard. The default position of the jumper is on pins 2 and 3.  
Setting  
Keep  
1
2
3
OFF ON ON  
ON ON OFF  
3
1
Clear  
CLE266  
CLEAR_CMOS  
1
3
2
4
SPDIF_SEL  
RCA Video or S/PDIF Select: SPDIF_SEL  
Users can select either RCA Video or  
S/PDIF as the enabled function on the  
Setting  
RCA  
1
2
3
4
dual-purpose port. Please note that text  
may not be clear due to the lower  
resolution in TV sets. If the text is not  
legible, try enlarging the text in the OS  
control panels. If your TV screen  
flickers, set the refresh rate to 60 Hz or  
less.  
ON ON OFF OFF  
OFF OFF ON ON  
SPDIF  
2-19  
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Chapter 2  
Slots  
Peripheral Component Interconnect: PCI  
The PCI slot allows you to insert PCI expansion card. When adding or  
removing expansion cards, make sure that you unplug the power supply first.  
Meanwhile, read the documentation for the expansion card to make any  
necessary hardware or software settings for the expansion card, such as  
jumpers, switches or BIOS configuration.  
CLE266  
PCI Interrupt Request Routing  
The IRQ, abbreviation of interrupt request line and pronounced I-R-Q, are  
hardware lines over which devices can send interrupt signals to the  
microprocessor. The “PCI & LAN” IRQ pins are typically connected to the  
PCI bus INT A# ~ INT D# pins as follows:  
Order 1  
INT B#  
Order 2  
INT C#  
Order 3  
INT D#  
Order 4  
INT A#  
PCI Slot  
2-20  
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Chapter  
BIOS Setup  
This chapter gives you detailed explaination of each  
BIOS setup functions.  
This chapter includes the following sections:  
Entering Setup  
3-2  
Control Keys  
3-2  
Gettings Help  
3-3  
The Main Menu  
3-4  
Standard CMOS Features  
Advanced BIOS Features  
Advanced Chipset Features  
Integrated Peripherals  
Power Management Setup  
PNP / PCI Configurations  
PC Health Status  
3-6  
3-8  
3-12  
3-14  
3-18  
3-23  
3-26  
3-27  
3-30  
3-31  
3-32  
3-34  
3-35  
Frequency / Voltage Control  
Load Fail-Safe Defaults  
Load Optimized Defaults  
Set Supervisor / User Password  
Save & Exit Setup  
Exit Without Saving  
3-1  
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Chapter 3  
Entering Setup  
Power on the computer and press Deletestraight away to enter the BIOS  
setup menu. If you missed the BIOS setup entry point, you may restart the  
system and try again.  
Control Keys  
Keys  
Description  
Up Arrow  
Down Arrow  
Left Arrow  
Right Arrow  
Enter  
Move to the previous item  
Move to the next item  
Move to the item in the left side  
Move to the item in the right side  
Select the item  
Escape  
Jumps to the Exit menu or returns to the main menu  
from a submenu  
Page Up / +  
Increase the numeric value or make changes  
Page Down / - Decrease the numeric value or make changes  
F1  
F5  
F6  
General help, only for Status Page Setup Menu and  
Option Page Setup Menu  
Restore the previous CMOS value from CMOS, only  
for Option Page Setup Menu  
Load the default CMOS value from Fail-Safe default  
table, only for Option Page Setup Menu  
F7  
Load Optimized defaults  
F9  
Jumps to the Main Menu  
F10  
Save all the CMOS changes and exit  
3-2  
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BIOS Setup  
Getting Help  
Main Menu  
The main menu displays all BIOS setup categories. Use the control keys  
Up/Down Arrow Keysto select any item/sub-menu. Description of the  
selected/highlighted category is displayed at the bottom of the screen.  
Sub-Menu  
If you find a right pointer symbol (as shown in  
IDE Primary Master  
IDE Primary Slave  
IDE Secondary Master  
IDE Secondary Slave  
the right view) appears on the left of certain  
fields, this means a sub-menu is available. The  
sub-menu contains additional options. You  
can use control keys Up/Down Arrow  
Keysto highlight the field and press Enter  
to enter the sub-menu. To return from the sub-menu press Esc.  
General Help: F1  
The BIOS setup program provides a General Help screen. You can call up  
this screen from any menu/sub-menu by pressing F1. The help screen  
displays the keys for use and navigate the BIOS setup. Press Escto exit the  
help screen.  
3-3  
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Chapter 3  
The Main Menu  
The Main Menu contains twelve setup functions and two exit choices. Use  
arrow keys to select the items and press Enterto accept or enter the sub-  
menu.  
Standard CMOS Features  
Use this menu to set basic system configurations.  
Advanced BIOS Features  
Use this menu to set the advanced features available on your system.  
Advanced Chipset Features  
Use this menu to set chipset specific features and optimize system  
performance.  
Integrated Peripherals  
Use this menu to set onboard peripherals features.  
Power Management Setup  
Use this menu to set onboard power management functions.  
PnP/PCI Configurations  
Use this menu to set the PnP and PCI configurations.  
PC Health Status  
This menu shows the PC health status.  
3-4  
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BIOS Setup  
Frequency/Voltage Control  
Use this menu to set the system frequency and voltage control.  
Load Fail-Safe Defaults  
Use this menu option to load the BIOS default settings for minimal and  
stable system operations.  
Load Optimized Defaults  
Use this menu option to load BIOS default settings for optimal and high  
performance system operations.  
Set Supervisor Password  
Use this menu option to set the BIOS supervisor password.  
Set User Password  
Use this menu option to set the BIOS user password.  
Save & Exit Setup  
Save BIOS setting changes and exit setup.  
Exit Without Saving  
Abandon all BIOS setting changes and exit setup.  
3-5  
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Chapter 3  
Standard CMOS Features  
Date  
The date format is <Day><Month><Date><Year>.  
Day - day of the week, for example Friday. Read-only.  
Month - the month from Jan to Dec.  
Date - the date from 1 to 31.  
Year - the year, range from 1999 to 2098.  
Time  
The time format is <Hour><Minute><Second>.  
Drive A/B  
Set the type of floppy drive installed. Settings: None, 360K (5.25 in.), 1.2M  
(5.25 in.), 720K (3.5 in.), 1.44M (3.5 in.), 2.88M (3.5 in.)  
Halt On  
Determine the system behaviour if an error is detected at boot. Settings are:  
All Errors  
System halts when any error is detected.  
No Errors  
System does not halt for any error.  
All, But Keyboard  
All, But Diskette  
All, But Disk/Key  
System halts for all non-key errors.  
System halts for all non-disk errors.  
System halts for all non-key and non-disk errors.  
3-6  
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BIOS Setup  
IDE Primary Master/Slave, Secondary Master/Slave  
Press Enterto enter the sub-menu and the following screen appears:  
The specifications of your drive must match with the drive table. The hard  
disk will not work properly if you enter improper information for this  
category. Select Auto whenever possible. If you select Manual, make sure the  
information provided is from your hard disk vendor or system manufacturer.  
IDE <Primary  
Master>  
The name of this menu item will match the  
name of the menu. The settings are None,  
Auto, Manual.  
Access Mode  
Capacity  
The settings are CHS, LBA, Large, Auto.  
The formatted size of the storage device.  
Number of cylinders.  
Cylinder  
Head  
Number of heads.  
Precomp  
Write precompensation.  
Landing Zone  
Sector  
Cylinder location of the landing zone.  
Number of sectors.  
PIO Mode  
Ultra DMA Mode  
The settings are Mode 0/1/2/3/4, Auto.  
The settings are Disabled and Auto.  
3-7  
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Chapter 3  
Advanced BIOS Features  
Virus Warning  
Set the Virus Warning feature for IDE Hard Disk boot sector protection. If  
the function is enabled, any attempt to write data into this area will cause a  
beep and warning message display on screen. Settings: Disabled and Enabled  
CPU L2 Cache ECC Checking  
Set the ECC (Error-Correcting Code) feature for Level 2 cache. Facilitates  
error detection/correction when data passes through Level 2 cache. Settings:  
Enabled and Disabled  
Quick Power On Self Test  
Shorten Power On Self Test (POST) cycle and enable shorter bootup time.  
Allow BIOS to skip some check items during POST. Settings: Enabled and  
Disabled  
3-8  
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BIOS Setup  
First/Second/Third Boot Device  
Set the boot device sequence as BIOS attempts to load the disk operating  
system. The settings are:  
Floppy  
The system will boot from floppy drive.  
The system will boot from LS-120 drive.  
The system will boot from first HDD.  
The system will boot from SCSI.  
LS120  
HDD-0  
SCSI  
CD-ROM  
HDD-1  
The system will boot from CD-ROM.  
The system will boot from second HDD.  
The system will boot from third HDD.  
The system will boot from fourth HDD.  
The system will boot from ATAPI ZIP drive.  
The system will boot from USB floppy drive.  
The system will boot from USB ZIP drive.  
The system will boot from USB CDROM.  
The system will boot from USB HDD.  
The system will boot from network drive.  
Disable this sequence.  
HDD-2  
HDD-3  
ZIP100  
USB-FDD  
USB-ZIP  
USB-CDROM  
USB-HDD  
LAN  
Disabled  
Boot Other Device  
Enable the system to boot from other devices if the system fails to boot from  
the First/Second/Third boot device. Settings: Enabled and Disabled  
Swap Floppy Drive  
If the system has two floppy drives, choose Enabled to assign physical drive  
B to logical drive A and vice versa. Settings: Enabled and Disabled  
Boot Up Floppy Seek  
Set floppy seek during POST, BIOS will determine whether the floppy is 40  
or 80 tracks. Settings: Enabled and Disabled  
3-9  
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Chapter 3  
Boot Up NumLock Status  
Set the NumLock status when the system is powered on. On will turn key  
pad into number keys, and Off will turn key pad into arrow keys. Settings: On  
and Off  
Typematic Rate Setting  
When Disabled, the following two items (Typematic Rate and Typematic  
Delay) are irrelevant. Keystrokes repeat at a rate determined by the keyboard  
controller in your system. When Enabled, you can select a typematic rate and  
typematic delay. Settings: Enabled and Disabled  
Typematic Rate (Chars/Sec)  
When Typematic Rate Setting is enabled, this item allows you to set the rate  
(characters/second) at which the keys are accelerated. Settings: 6, 8, 10, 12,  
15, 20, 24 and 30  
Typematic Delay (Msec)  
When Typematic Rate Setting is enabled, this item allows you to select the  
delay between when the key was first pressed and when the acceleration  
begins. Settings: 250, 500, 750 and 1000  
Security Option  
If you have set a password, select whether the password is required every  
time the System boots, or only when you enter Setup. Settings are described  
below:  
Setup  
The password prompt appears only when end users  
try to run Setup.  
System  
A password prompt appears every time when the  
computer is powered on or when end users try to  
run Setup.  
Display Full Screen Logo  
Show full screen logo during BIOS bootup process. Settings: Enabled and  
Disabled  
3-10  
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BIOS Setup  
Show Summary Information  
Settings: Enabled and Disabled  
Display Small Logo  
Show small energy star logo during BIOS bootup process. Settings: Enabled  
and Disabled  
3-11  
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Chapter 3  
Advanced Chipset Features  
The Advanced Chipset Features menu is used for optimizing the chipset  
functions.  
WARNING: Do not change these settings unless you are familiar with the chipset.  
AGP Aperture Size  
This setting controls how much memory space can be allocated to AGP for  
video purposes. The aperture is a portion of the PCI memory address range  
dedicated to graphics memory address space. Host cycles that hit the  
aperture range are forwarded to the AGP without any translation. Settings:  
4MB, 8MB, 16MB, 32MB, 64MB, 128MB, and 256MB  
AGP Mode (Internal)  
This mainboard supports the AGP 4x interface. When the AGP 4x video  
card is used, it can transfer video data at 1066MB/s. AGP 4x is backward-  
compatible, leave the default 4x mode on if unsure. When set to 1x mode,  
the maximum transfer rate it at 266MB/s, and 2x mode transfers data at  
533MB/s. AGP8x mode can be detected automatically once you plug in the  
AGP8x card. Settings: 4X, 2X and 1X  
3-12  
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BIOS Setup  
AGP Fast Write  
When Enabled, the speed of the memory write operations will increase.  
Settings: Enabled and Disabled  
CPU to PCI POST Write  
When Enabled, CPU can write up to four words of data to the PCI write  
buffer before CPU must wait for PCI bus cycle to finish. If Disabled, CPU  
must wait after each write cycle until PCI bus signals that it is ready to  
receive more data. Settings: Enabled and Disabled  
Select Display Device  
This setting refers to the type of display being used with the system.  
Settings: CRT, TV, CRT + TV, LCD and CRT + LCD  
TV Layout  
Settings: Default, COMP. + S-Video, S-Video + S-Video, COMP. + RGB, COMP. +  
YCbCr, COMP. + SDTV-RGB, COMP. + SDTV-YPbPr, Composite, S-Video, RGB,  
YCbCr, SDTV-RGB, SDTV-YPbPr, S-Video + RGB and S-Video + YCbCr  
Panel Type  
This setting refers to the native resolution of the display being used with the  
system. Settings: 1600x1200, 1400.1050, 1280,1024, 1280x768,1024x768, 800x600  
and 640x480  
TV Type  
Settings: NTSC and PAL  
CPU Direct Access FB  
Settings: Enabled and Disabled  
3-13  
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Chapter 3  
Integrated Peripherals  
Onboard IDE Channel 1/2  
The integrated peripheral controller contains an IDE interface with support  
for two IDE channels. Choose Enabled to activate each channel separately.  
Settings: Enabled and Disabled  
IDE Prefetch Mode  
This allows your hard disk controller to use the fast block mode to transfer  
data to and from the hard disk drive. Block mode is also called block  
transfer, multiple commands or multiple sector read/write. Enabled enables  
IDE controller to use block mode; Disabled allows the controller to use  
standard mode. Settings: Enabled and Disabled  
Display Card Priority  
This setting specifies which VGA card is your primary graphics adapter.  
Settings: PCI Slot and AGP  
Frame Buffer Size  
This setting instructs the BIOS to reserved the specified amount of memory  
for the internal video controller. Settings: 16M, 32M, 64M  
3-14  
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BIOS Setup  
AC97 Audio  
Auto allows the mainboard to detect whether an audio device is used. If the  
device is detected, the onboard VIA AC’97 (Audio Codec’97) controller will  
be enabled; if not, it is disabled. Disable the controller if you want to use  
other controller cards to connect to an audio device. Settings: Auto and  
Disabled  
VIA OnChip LAN  
This setting allows you to make VIA OnChip LAN enabled or disabled.  
Settings: Enabled and Disabled  
OnChip USB Controller  
Settings: All Enabled and All Disabled  
USB Keyboard Support  
Enable USB Keyboard Support for DOS and Windows. Settings: Enabled and  
Disabled  
Onboard 1394  
Enables the onboard 1394 controller. Settings: Enabled and Disabled  
Onboard Lan Boot ROM  
Enable Onboard Lan Boot ROM for DOS and Windows. Settings: Enabled  
and Disabled  
3-15  
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Chapter 3  
SuperIO Device  
Press Enterto enter the sub-menu and the following screen appears:  
Onboard FDC Controller  
Enable the onboard floppy controller. Select Enabled when you have  
installed a floppy disk drive. Settings: Enabled, Disabled  
Onboard Serial Port 1/2  
Set the base I/O port address and IRQ for the onboard serial port A/serial  
port B. Selecting Auto allows BIOS to automatically determine the  
correct base I/O port address. Settings:  
Port  
1
Settings  
Disabled 3F8/IRQ4 2F8/IRQ3 3E8/IRQ4 2E8/IRQ3 Auto  
Disabled 3F8/IRQ4 2F8/IRQ3 3E8/IRQ4 2E8/IRQ3 Auto  
2
Onboard Parallel Port  
This specifies the I/O port address and IRQ of the onboard parallel port.  
Settings: Disabled, 378/IRQ7, 278/IRQ5, 3BC/IRQ7  
Parallel Port Mode  
Set the parallel port mode. To operate the onboard parallel port as  
Standard Parallel Port, choose SPP. To operate the onboard parallel port  
in the EPP mode, choose EPP. By choosing ECP, the onboard parallel port  
will operate in ECP mode. Choosing ECP + EPP will allow the onboard  
parallel port to support both the ECP and EPP modes simultaneously.  
Settings: SPP, EPP, ECP, ECP + EPP  
3-16  
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BIOS Setup  
EPP Mode Select  
EPP (Enhanced Parallel Port) comes in two modes: 1.9 and 1.7. EPP 1.9  
is the newer version of the protocol and is backwards compatible with  
most EPP devices. If your EPP device does not work with the EPP 1.9  
setting, try changing the setting to EPP 1.7.  
Settings: EPP 1.9, EPP 1.7  
ECP Mode Use DMA  
ECP (Extended Capabilities Port) has two DMA channels that it can use.  
The default channel is 3. However, some expansion cards may use  
channel 3 as well. To solve this conflict, change the ECP channel to 1.  
Select a DMA channel for the port. Settings: 1, 3  
Onboard Fast IR  
Enables or disables the infrared port. Settings: Enabled and Disabled  
Fast IR IRQ  
Set this field to reserve an IRQ for the Fast IR port. This field is only  
available if Onboard Fast IR is enabled. Settings: 3, 4, 5, 11  
Fast IR DMA  
Set this field to choose the DMA channel. This field is only available if  
Onboard Fast IR is enabled. Settings: 6, 5  
3-17  
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Chapter 3  
Power Management Setup  
The Power Management Setup menu configures the system to most  
effectively save energy while operating in a manner consistent with your  
own style of computer use.  
ACPI Suspend Type  
Set the power saving mode for ACPI function. Settings are:  
S1(POS)  
S1/Power On Suspend (POS) is a low power state. In  
this state, no system context (CPU or chipset) is lost  
and hardware maintains all system context.  
S3(STR)  
S3/Suspend To RAM (STR) is a power-down state. In  
this state, power is supplied only to essential  
components such as main memory and wakeup-  
capable devices. The system context is saved to  
main memory, and context is restored from the  
memory when a “wakeup” event occurs.  
S1 & S3  
Depends on OS to select S1 or S3.  
HDD Power Down  
Set the time to power down HDD after hard disk inactivity. Settings: Disabled  
and 1~15 (minutes)  
3-18  
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BIOS Setup  
Power Management Timer  
Set the idle time before system enters power saving mode. ACPI OS such as  
Windows XP will override this option. Settings: Disabled and 1/2/4/6/8/10/20/  
30/40 (minutes) and 1 (hour)  
Video Off Option  
Select whether or not to turn off the screen when system enters power saving  
mode, ACPI OS such as Windows XP will override this option. Settings are:  
Always On  
The screen is always on even when system  
enters power saving mode.  
Suspend -> Off  
The screen is turned off when system enters  
power saving mode.  
Power Off by PWRBTN  
This field configures the power button function. Settings are:  
Delay 4 Sec  
The system is turned off if power button is pressed  
for more than four seconds.  
Instant-Off  
The power button functions as a normal power-on/-  
off buttton.  
Run VGABIOS if S3 Resume  
Select whether to run VGA BIOS if resumed from S3 state. This is only  
necessary for older VGA drivers, select Auto if in doubt. Settings: Auto, Yes  
and No  
AC Loss Auto restart  
The field defines how the system will act after an AC power loss during  
system operation. Off will keep the system in an off stat until the power  
button is pressed. When set to On the system will restart when the power is  
back. Former-Sts will restore the system to its previous state. Settings: Off, On,  
Former-Sts  
3-19  
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Chapter 3  
Peripheral Activities  
Press Enterto enter the sub-menu and the following screen appears:  
VGA Event  
Decide whether or not the power management unit should monitor VGA  
activities. Settings: Off and On  
LPT & COM Event  
Decide whether or not the power management unit should monitor  
parallel port (LPT) and serial port (COM) activities. Settings: None, LPT,  
COM and LPT/COM  
HDD & FDD Event  
Decide whether or not the power management unit should monitor hard  
disks and floppy drives activities. Settings: Off and On  
PCI Master Event  
Decide whether or not the power management unit should monitor PCI  
master activities. Settings: Off and On  
PS2KB Wakeup Select  
When select Password, please press Page Upor Page Downkey to  
change Password, 8 characters maximum. Please note that PS2MS  
Wakeup from suspend and PS2KB Wakeup from suspend will be  
disabled while changing the passward. Settings: Hot key and Password  
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BIOS Setup  
PS2MS Wakeup from S3/S4/S5  
This setting can be used to wakeup the system from power saving mode  
through mouse. Settings: Disabled and Enabled  
PS2KB Wakeup from S3/S4/S5  
Select which Hot-Key to wake-up the system from power saving mode.  
Settings: Disabled, Ctrl+F1, Ctrl+F2, Ctrl+F3, Ctrl+F4, Ctrl+F5, Ctrl+F6, Ctrl+F7,  
Ctrl+F8, Ctrl+F9, Ctrl+F10, Ctrl+F11, Ctrl+F12, Power, Wake and Any Key  
USB Resume  
Decide whether or not USB devices can wake the system from suspend  
state. Settings: Disabled and Enabled  
PowerOn by PCI Card  
Decide whether or not any PCI card can power up the system or resume  
from suspend state. Such PCI cards include LAN, onboard USB ports,  
etc. Settings: Disabled and Enabled  
Wake On LAN/Ring Connector  
Decide whether or not any Ring-In signals from the modem can wake up  
the system or resume from suspend state. Settings: Disabled and Enabled  
RTC Alarm Resume  
The field is used to enable or disable the feature of booting up the system  
on a scheduled time/date. Settings: Disabled and Enabled  
Date (of Month)  
This field can only be set if RTC Alarm Resume is enabled. The field  
specifies the date for RTC Alarm Resume.  
Resume Time (hh:mm:ss)  
This field can only be set if RTC Alarm Resume is enabled. The field  
specifies the time for RTC Alarm Resume.  
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Chapter 3  
IRQs Activities  
Press Enterto enter the sub-menu and the following screen appears:  
Primary INTR  
Selecting On will cause the system to wake up from power saving modes  
if activity is detected from any enabled IRQ channels. Settings: Off, On  
IRQ3~IRQ15  
Enables or disables the monitoring of the specified IRQ line. If set to  
Enabled, the activity of the specified IRQ line will prevent the system  
from entering power saving modes or awaken it from power saving  
modes. These fields are only available if Primary INTR is on. Settings:  
Enabled and Disabled  
Note: IRQ (Interrupt Request) lines are system resources allocated to I/O devices.  
When an I/O device needs to gain attention of the operating system, it signals this  
by causing an IRQ to occur. After receiving the signal, when the operating system is  
ready, the system will interrupt itself and perform the service required by the IO  
device.  
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BIOS Setup  
PNP/PCI Configurations  
This section describes the BIOS configuration of the PCI bus system. This  
section covers some very technical items and it is strongly recommended  
that only experienced users should make any changes to the default settings.  
PNP OS Installed  
When set to Yes, BIOS will only initialize the PnP cards used for booting  
(VGA, IDE, SCSI). The rest of the cards will be initialized by the PnP  
®
operating system like Windows 95 or 98/98SE. When set to No, BIOS will  
initialize all the PnP cards. Set to Yes the operating system is Plug & Play  
capable. Settings: No and Yes  
Reset Configuration Data  
Normally, you leave this field Disabled. Select Enabled to reset Extended  
System Configuration Data (ESCD) when you exit Setup if you have  
installed a new add-on and the system reconfiguration has caused such a  
serious conflict that the operating system can not boot. Settings: Enabled and  
Disabled  
Resource Controlled By  
The BIOS can automatically configure all the boot and Plug and Play  
compatible devices. Choose Auto(ESCD) if unsure, the BIOS will  
automatically assign IRQ, DMA and memory base address fields. Settings:  
Auto (ESCD) and Manual  
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Chapter 3  
Assign IRQ For VGA/USB  
Assign IRQ for VGA and USB devices. Settings: Disabled and Enabled  
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BIOS Setup  
IRQ Resources  
The items are adjustable only when Resources Controlled By is set to Manual.  
Press Enterand you will enter the sub-menu of the items.  
IRQ Resources list IRQ 3/4/5/7/9/10/11/12/14/15 for users to set each IRQ a  
type depending on the type of device using the IRQ. Settings:  
PCI Device  
For Plug & Play compatible devices designed for PCI  
bus architecture.  
Reserved  
The IRQ will be reserved for further request.  
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Chapter 3  
PC Health Status  
This section shows the status of your CPU, fan, warning for overall system  
status.  
The PC Health Status displays the current status of all of the monitored  
hardware devices/components such as CPU voltages, temperatures and fan  
speeds.  
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BIOS Setup  
Frequency / Voltage Control  
DRAM Clock  
The chipset supports synchronous and asynchronous mode between host  
clock and DRAM clock frequency. Settings: 100 MHz, 133 MHz, and By SPD  
DRAM Timing  
The value in this field depends on the memory modules installed in your  
system. Changing the value from the factory setting is not recommended  
unless you install new memory that has a different performance rating than  
the original modules. Settings: Manual and By SPD  
DRAM CAS Latency  
This item adjusts the speed it takes for the memory module to complete a  
command. Generally, a lower setting will improve the performance of your  
system. However, if your system becomes less stable, you should change it  
to a higher setting. This field is only available when DRAM Timing is set to  
Manual. Settings: 2, 2.5  
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Chapter 3  
Bank Interleave  
Set the interleave mode of the SDRAM interface. Interleaving allows banks  
of SDRAM to alternate their refresh and access cycles. One bank will  
undergo its refresh cycle while another is being accessed. This improves  
performance of the SDRAM by masking the refresh time of each bank. This  
field is only available when DRAM Timing is set to Manual. Settings:  
Disabled, 2 Bank, 4 Bank  
Precharge to Active (Trp)  
This field controls the length of time it takes to precharge a row in the  
memory module before the row becomes active. Longer values are safer but  
may not offer the best performance. This field is only available when DRAM  
Timing is set to Manual. Settings: 2T, 3T  
Active to Precharge (Tras)  
This field controls the length of time a row stays active before precharging.  
Longer values are safer buy may not offer the best performance. This field is  
only available when DRAM Timing is set to Manual. Settings: 5T, 6T  
Active to CMD (Trcd)  
This field is only available when DRAM Timing is set to Manual. Settings:  
2T, 3T  
DRAM Command Rate  
This field controls how fast the memory controller sends out commands.  
Lower setting equals faster command rate. Please note that some memory  
modules may not be able to handle lower settings. Settings: 2T Command, 1T  
Command  
DRAM Burst Len  
This field sets the length of time for one burst of data during a read/write  
transaction. Longer settings equals better memory performance. Settings: 4,  
8
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BIOS Setup  
DRAM Voltage  
This field sets the voltage for the memory module. Settings: 2.8V, 2.7V, 2.6V,  
Default  
CPU Clock  
This field sets the CPU clock speed.  
Spread Spectrum  
When the mainboard’s clock generator pulses, the extreme values (spikes) of  
the pulses creates EMI (Electromagnetic Interference). The Spread Spectrum  
function reduces the EMI generated by modulating the pulses so that the  
spikes of the pulses are reduced to flatter curves.  
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Chapter 3  
Load Fail-Safe Defaults  
This option on the main menu allows users to restore all the BIOS settings to  
the default Fail Safe values. These values are set by the mainboard  
manufacturer to provide a minimal and stable system.  
When you select Load-Fail Safe Defaults, a message as below appears:  
Entering Y loads the default BIOS values that provide a minimal and stable  
system configuration.  
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BIOS Setup  
Load Optimized Defaults  
This option on the main menu allows users to restore all the BIOS settings to  
the default Optimized values. The Optimized Defaults are the default values  
also set by the mainboard manufacturer for both optimized and stable  
performance of the mainboard.  
When you select Load Optimized Defaults, a message as below appears:  
Entering Y loads the default values that are factory settings for optimal and  
stable system performance.  
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Chapter 3  
Set Supervisor / User Password  
When you select this function, a message as below will appear on the screen:  
Type the password, up to eight characters in length, and press Enter. The  
password typed now will clear any previously set password from CMOS  
memory. You will be prompted to confirm the password. Re-type the  
password and press Enter. You may also press Escto abort the selection  
and not enter a password.  
To clear a set password, just press Enterwhen you are prompted to enter  
the password. A message will show up confirming the password will be  
disabled. Once the password is disabled, the system will boot and you can  
enter Setup without entering any password.  
When a password has been set, you will be prompted to enter it every time  
you try to enter Setup. This prevents an unauthorized person from changing  
any part of your system configuration.  
There are two types of passwords you can set. A Supervisor password and a  
User password. When a Supervisor password is used, the user can start  
BIOS Setup program and change the settings of the setup menus. When a  
User password is used, the user can start the BIOS Setup program but does  
not have the right to change the settings of the setup menus.  
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BIOS Setup  
Additionally, when a password is enabled, you can also have BIOS to  
request a password each time the system is booted. This would prevent  
unauthorized use of your computer. The setting to determine when the  
password prompt is required is the Security Option of the Advanced BIOS  
Features menu. If the Security Option is set to System, the password is  
required both at boot and at entry to Setup. If set to Setup, password prompt  
only occurs when trying to enter Setup.  
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Chapter 3  
Save & Exit Setup  
When you want to quit the Setup menu, you can select this option to save the  
changes and quit. A message as below will appear on the screen:  
Entering Y will allow you to quit the Setup Utility and save the user setup  
changes to RTC CMOS.  
Entering N will return to the Setup Utility.  
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BIOS Setup  
Exit Without Saving  
When you want to quit the Setup menu, you can select this option to abandon  
the changes. A message as below will appear on the screen:  
Entering Y will allow you to quit the Setup Utility without saving any  
changes to RTC CMOS.  
Entering N will return to the Setup Utility.  
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Chapter 3  
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Chapter  
Driver Installation  
This chapter gives you brief descriptions of each  
mainboard drivers and applications. You must  
install VIA chipset drivers first before installing  
other drivers such as audio or VGA drivers. The  
applications will only function correctly if the  
necessary drivers are already installed.  
This chapter includes the following sections:  
Driver Utilities  
CD Content  
4-2  
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Chapter 4  
Driver Utilities  
Getting Started  
The mainboard includes a Driver Utilities CD which contains driver utilities  
and software to enhance the performance of the mainboard. Please check  
that you have this CD in your retail box. If the CD is missing in your retail  
box, please contact your local dealer for the CD.  
Note: The driver utilities and software are updated from time to time. Please visit  
and utilities.  
Running the Driver Utilities CD  
To start using the CD, just simply insert the CD into your local CD-ROM or  
DVD-ROM drive. The CD should run automatically when you close your  
CD-ROM or DVD-ROM drive. The driver utilities and software menu  
screen should then appear on your desktop. If the CD does not run  
automatically, you can run the CD manually by typing “D:\Setup.exe” at  
Start\Run.  
(Please note that D: might not be your CD-ROM/DVD-ROM drive letter. Make sure  
you type the correct letter of CD-ROM/DVD-ROM drive on your system).  
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Driver Installation  
CD Content  
The driver utilities and software in this CD are:  
VIA 4in1 Drivers: Contains VIA ATAPI Vendor Support Driver  
(enables the performance enhancing bus mastering functions on ATA-  
capable Hard Disk Drives and ensures IDE device compatibility), AGP  
VxD Driver (provides service routines to your VGA driver and  
interface directly to hardware, providing fast graphical access), IRQ  
Routing Miniport Driver (sets the system’s PCI IRQ routing sequence)  
and VIA INF Driver (enables the VIA Power Management function).  
VIA VGA Driver: Enhances the onboard VIA graphic chip.  
VIA Audio Driver: Enhances the onboard VIA audio chip.  
VIA LAN Driver: Enhances the onboard VIA LAN chip.  
VIA USB 2.0 Driver: Enhances VIA USB 2.0 ports.  
VIA TV-out Utility: Enhances the TV-out by enabling display position  
adjustment.  
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Chapter 4  
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