|
®
CUBX-L/CUBX-E
Socket 370 ATX Motherboard
USER’S MANUAL
Special Features
CUBX-L
• UltraDMA/33 Support
• 2 USB Ports
CUBX-E
• UltraDMA/100 Support
• 5 USB Ports (2 standard, 3 upgradeable)
ASUS CONTACT INFORMATION
ASUSTeK COMPUTER INC. (Asia-Pacific)
Marketing
Address:
Telephone:
Fax:
150 Li-Te Road, Peitou, Taipei, Taiwan 112
+886-2-2894-3447
+886-2-2894-3449
Email:
Technical Support
MB/Others (Tel): +886-2-2890-7121 (English)
Notebook (Tel):
+886-2-2890-7122 (English)
Desktop/Server (Tel):+886-2-2890-7123 (English)
Fax:
+886-2-2895-9254
www.asus.com.tw
Email:
WWW:
FTP:
ftp.asus.com.tw/pub/ASUS
ASUS COMPUTER INTERNATIONAL (America)
Marketing
Address:
6737 Mowry Avenue, Mowry Business Center, Building 2
Newark, CA 94560, USA
Fax:
Email:
+1-510-608-4555
Technical Support
Fax:
+1-510-608-4555
www.asus.com
ftp.asus.com/Pub/ASUS
Email:
WWW:
FTP:
ASUS COMPUTER GmbH (Europe)
Marketing
Address:
Fax:
Harkortstr. 25, 40880 Ratingen, BRD, Germany
+49-2102-442066
Email:
[email protected] (for marketing requests only)
Technical Support
Hotline:
Fax:
Support (Email):
WWW:
MB/Others: +49-2102-9599-0 Notebook: +49-2102-9599-10
+49-2102-9599-11
www.asuscom.de/de/support (for online support)
www.asuscom.de
FTP:
ftp.asuscom.de/pub/ASUSCOM
ASUS CUBX-L/CUBX-E User’s Manual
3
CONTENTS
1. INTRODUCTION .............................................................................. 7
1.1 How This Manual Is Organized .................................................. 7
1.2 Item Checklist ............................................................................. 7
2. FEATURES ......................................................................................... 8
2.1 The ASUS CUBX-L/CUBX-E Motherboard ............................. 8
2.1.1 Specifications .................................................................. 8
2.1.2 Special Features ............................................................. 10
2.1.3 Performance Features .................................................... 10
2.1.4 Intelligence .................................................................... 11
2.2 Motherboard Components ........................................................ 12
2.2.1 Component Locations .................................................... 13
3. HARDWARE SETUP ...................................................................... 14
3.1 CUBX-L/CUBX-E Motherboard Layout ................................. 14
3.2 Layout Contents ........................................................................ 15
3.3 Hardware Setup Procedure ....................................................... 17
3.4 Motherboard Settings ................................................................ 17
3.5 System Memory (DIMM) ......................................................... 22
3.5.1 General DIMM Notes .................................................... 22
3.5.2 Memory Installation ...................................................... 23
3.6 Central Processing Unit (CPU) ................................................. 25
3.7 Expansion Cards ....................................................................... 26
3.7.1 Expansion Card Installation Procedure ......................... 26
3.7.2 Assigning IRQs for Expansion Cards............................ 27
3.7.3 Accelerated Graphics Port (AGP) ................................. 29
3.8 Connectors ................................................................................ 30
3.9 Starting Up the First Time ........................................................ 41
4. BIOS SETUP..................................................................................... 42
4.1 Managing and Updating Your BIOS ......................................... 42
4.1.1 Upon First Use of the Computer System....................... 42
4.1.2 Updating BIOS Procedures (only when necessary) ...... 43
4.2 BIOS Setup Program ................................................................ 45
4.2.1 BIOS Menu Bar ............................................................. 46
4.2.2 Legend Bar .................................................................... 46
4.3 Main Menu ................................................................................ 48
4.3.1 Primary & Secondary Master/Slave .............................. 49
4.3.2 Keyboard Features ......................................................... 52
4
ASUS CUBX-L/CUBX-E User’s Manual
CONTENTS
4.4 Advanced Menu ........................................................................ 54
4.4.1 Chip Configuration ........................................................ 58
4.4.2 I/O Device Configuration .............................................. 60
4.4.3 PCI Configuration ......................................................... 62
4.4.4 Shadow Configuration ................................................... 65
4.5 Power Menu .............................................................................. 66
4.5.1 Power Up Control .......................................................... 68
4.5.2 Hardware Monitor ......................................................... 70
4.6 Boot Menu ................................................................................ 71
4.7 Exit Menu ................................................................................. 73
5. SOFTWARE SETUP ....................................................................... 75
5.1 Install Operating System ........................................................... 75
5.2 Start Windows ........................................................................... 75
5.3 Installing Drivers and Software ................................................ 75
6. SOFTWARE REFERENCE ........................................................... 79
6.1 ASUS PC Probe ........................................................................ 79
6.2 ASUS Update ............................................................................ 84
7. APPENDIX........................................................................................ 85
7.1 PCI-L101 Fast Ethernet Card ................................................... 85
7.2 ASUS CIDB Intrusion Detection Module ................................ 87
7.3 Glossary .................................................................................... 89
INDEX ................................................................................................... 93
ASUS CUBX-L/CUBX-E User’s Manual
5
FCC & DOC COMPLIANCE
Federal Communications Commission Statement
This device complies with FCC Rules Part 15. 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 installa-
tion. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with manufacturer's 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 interfer-
ence by one or more of the following measures:
•
•
•
Re-orient 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.
WARNING! Any changes or modifications to this product not expressly ap-
proved by the manufacturer could void any assurances of safety or performance
and could result in violation of Part 15 of the FCC Rules.
Reprinted from the Code of Federal Regulations #47, part 15.193, 1993. Washington DC: Office of the
Federal Register, National Archives and Records Administration, U.S. Government Printing Office.
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.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
6
ASUS CUBX-L/CUBX-E User’s Manual
1. INTRODUCTION
1.1 How This Manual Is Organized
This manual is divided into the following sections:
1. INTRODUCTION
2. FEATURES
3. HARDWARE SETUP
4. BIOS SETUP
Manual information and checklist
Production information and specifications
Intructions on setting up the motherboard.
Intructions on setting up the BIOS
5. SOFTWARE SETUP
6. SOFTWARE REFERENCE
7. APPENDIX
Intructions on setting up the included software
Reference material for the included software
Optional items and general reference
1.2 Item Checklist
Please check that your package is complete. If you discover damaged or missing
items, please contact your retailer.
Package Contents
Optional Items
(1) ASUS Motherboard
ASUS CIDB chassis intrusion de-
tection module
(1) Ribbon cable for internal
UltraDMA/33 IDE drives
ASUS IrDA-compliant infrared
module
(1) Ribbon cable for one 5.25” and
ASUS PCI-L101 Wake-On-LAN
10/100 Ethernet Card
two 3.5” floppy disk drives
(1) Bag of spare jumper caps
(1) ASUS Support CD with
drivers and utilities
(1) This Motherboard User’s
Manual
(1) 40-pin 80-conductor ibbon cable
for internal UltraDMA100/66/33
IDE drives (only for CUBX-E)
(1) Promise ATA100 Support Disk
(only for CUBX-E)
ASUS CUBX-L/CUBX-E User’s Manual
7
2. FEATURES
2.1 The ASUS CUBX-L/CUBX-E
Motherboard
TheASUS CUBX-L/CUBX-E is carefully designed for the demanding PC user who
wants advanced features processed by the fastest CPU.
2.1.1 Specifications
•
Latest Intel Processor Support
Intel Pentium® III
Intel Celeron™
Intel Celeron™
100MHz FSB Coppermine core
66MHz FSB Coppermine core
66MHz FSB Mendocino
FC-PGA
FC-PGA
PPGA
•
Intel AGPset: Features Intel’s 440BX AGPset with I/O subsystems and front-side
bus(FSB)platform, whichbooststhetraditional66MHzexternalbusspeedto100MHz.
•
JumperFree™ Mode: Allows processor settings and easy overclocking of fre-
quency and Vcore voltage all through BIOS setup when JumperFree™ mode is
enabled. Easy-to-use DIP switches instead of jumpers are included to allow
manual adjustment of the processor’s external frequency.
•
•
Anti-Boot Virus BIOS: Features a programmable BIOS, offering enhanced
Advanced Configuration Power Interface (ACPI) support for Windows 98 com-
patibility, built-in firmware-based virus protection through Trend ChipAway Virus
codes, and autodetection of most devices for virtually automatic setup.
PC100 Memory Support: Equipped with four DIMM sockets to support Intel
PC100-compliant SDRAMs (8, 16, 32, 64, 128, or 256MB) up to 1 GB. These
new SDRAMs are necessary to meet the critical enhanced 100MHz bus speed
requirement.
•
•
Peripheral Wake Up: Supports modem, PS/2 keyboard, PS/2 mouse, and LAN
card wake up functions from sleep or soft-off mode.
PC Health Monitoring: Provides an easier way to examine and manage system
status information, such as CPU and system voltages, temperatures, and fan
status through the onboard hardware ASIC and the bundled LDCM by Intel or
PC Probe from ASUS.
•
•
AGP Slot: Supports an Accelerated Graphics Port card for high performance,
component level interconnect targeted at 3D graphical display applications us-
ing a 1X or 2X mode bus.
PCI/ISA Expansion Slots: Provides five 32-bit PCI (rev 2.2) and two ISA ex-
pansion slots. PCI supports up to 133MB/s maximum throughput.
ASUS CUBX-L/CUBX-E User’s Manual
8
2. FEATURES
•
•
Multi-I/O: Provides two high-speed UART compatible serial ports and one paral-
lel port with EPP and ECP capabilities.
UltraDMA/33 Bus Master IDE: Comes with an onboard PCI Bus Master IDE
controller with two connectors that support four UltraDMA/33 IDE devices on
two channels. Supports UltraDMA/33, PIO Modes 3 and 4, and Bus Master IDE
DMA Mode 2, as well as Enhanced IDE devices, such as Tape Backup, CD-
ROM, CD-R/RW, and LS-120 drives.
•
Wake-On-LAN Connector: Supports Wake-On-LAN activity through an op-
tional ASUS PCI-L101 10/100 Fast Ethernet PCI card (see 7.1 PCI-L101 LAN
Card) or a similar ethernet card.
•
Suspend and Go: Suspend-to-RAM (STR) provides maximum power savings
as an alternative to leaving the computer ON and QuickStart™ so that you do
not have to wait for a long time for system bootup (see Suspend-to-RAM Ca-
pability in 4.5 Power Menu for more information).
•
•
Promise PCI-ATA100 Support (only on CUBX-E): Provides support to PCI-
ATA100 controller to provide Ultra DMA/100 solutions.
Supports Up to 5 USB Ports (only on CUBX-E): Provides support for up to
five USB ports right out of the box.
ASUS CUBX-L/CUBX-E User’s Manual
9
2. FEATURES
2.1.2 Special Features
•
ACPI Ready: Advanced Configuration Power Interface (ACPI) provides more
Energy Saving Features for operating systems that support OS Direct Power
Management (OSPM) functionality. With these features implemented in the OS,
PCs can be ready around the clock, yet satisfy all the energy saving standards.
To fully utilize the benefits of ACPI, an ACPI-supported OS such as Windows
98 must be used.
•
•
Easy Installation: Incorporates BIOS that supports autodetection of hard disk
drives, PS/2 mouse, and Plug and Play devices to make the setup of hard disk
drives, expansion cards, and other devices virtually automatic.
New Compliancy: Both the BIOS and hardware levels of this motherboard meet
the stringent requirements for PC’99 certification. The new PC’99 requirements
for systems and components are based on the following high-level goals: Sup-
port for Plug and Play compatibility and power management for configuring
and managing all system components, and 32-bit device drivers and installation
procedures for Windows95/98/NT . Color-coded connectors and descriptive icons
make identification easy as required by PC’99.
•
Symbios SCSI BIOS: Supports optional ASUS SCSI controller cards through
the onboard SYMBIOS firmware.
2.1.3 Performance Features
•
Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI mas-
ter busses to the memory and processor.
•
SDRAM Optimized Performance: Supports the new generation memory - Syn-
chronous Dynamic RandomAccess Memory (SDRAM) which increases the data
transfer rate to 800MB/s max using PC100-compliant SDRAM.
•
High-Speed Data Transfer Interface: The CUBX-L motherboard supports
UltraDMA/33 and can handle data transfer rates up to 33MB/s. The CUBX-E
motherboard supports UltraDMA/100, which increases the data transfer rate to
100MB/s. UltraDMA/100 is backward compatible with DMA/66, DMA/33, and
DMA and with existing DMA devices and systems so there is no need to up-
grade current EIDE/IDE drives and host systems. (UltraDMA/66 and UltraDMA/
100 require a 40-pin 80-conductor cable to be enabled.)
ASUS CUBX-L/CUBX-E User’s Manual
10
2. FEATURES
2.1.4 Intelligence
•
Dual Function Power Button: Pushing the power button for less than 4 sec-
onds when the system is in the working state places the system into one of two
states: sleep mode or soft-off mode, depending on the BIOS or OS setting (see
PWR Button < 4 Secs in 4.5 Power Menu). When the power button is pressed
for more than 4 seconds, the system enters the soft-off mode regardless of the
BIOS setting.
•
•
Fan Status Monitoring and Alarm: To prevent system overheat and system
damage, the CPU, power supply, and system fans can be monitored for RPM
and failure. All fans are set for its normal RPM range and alarm thresholds.
Message LED (requires ACPI OS support): Turbo LEDs now act as informa-
tion providers. Through the way a particular LED illuminates, the user can de-
termine if a message has been received from a fax/modem. A simple glimpse
provides useful information to the user.
•
•
Remote Ring On (requires modem): This allows a computer with this mother-
board to be turned on remotely through an internal or external modem. With this
feature, users can access their computers from anywhere in the world!
System Resources Alert: Today’s operating systems such as Windows 95/98/
NT and OS/2, require much more memory and hard drive space to present enor-
mous user interfaces and run large applications. The system resource monitor
will warn the user before the system resources are used up to prevent possible
application crashes. Suggestions will give the user information on managing
their limited resources more efficiently.
•
Voltage Monitoring and Alert: System voltage levels are monitored to ensure
stable voltage to critical motherboard components. Voltage specifications are
more critical for future processors, so monitoring is necessary to ensure proper
system configuration and management.
ASUS CUBX-L/CUBX-E User’s Manual
11
2. FEATURES
2.2 Motherboard Components
See opposite page for locations.
Location
Processor Support Socket 370 for Pentium III/Celeron Processors ....................... 1
Feature Setting DIP Switches ................................................... 8
100/66MHz system bus (Frequency Multiples 2.0-8.0)
Chipsets Intel 440BX AGPset ................................................................. 3
Multi-I/O Chipset ................................................................... 16
Main Memory Maximum 1GB Supported
4 DIMM Sockets ...................................................................... 4
PC100/66 SDRAM Supported
Expansion Slots 5 PCI Slots .............................................................................. 17
2 ISA Slots .............................................................................. 12
1 Accelerated Graphics Port ................................................... 18
System I/O 2 UltraDMA/33 IDE Connectors ............................................. 5
2 UltraDMA/100 IDE Connectors (only on CUBX-E)............ 5
1 Floppy Disk Drive Connector ............................................... 9
Intel PIIX4E PCIset ................................................................ 10
1 Parallel Port Connector ....................................................... 21
2 Serial Port Connectors ................................................... 20, 22
2 USB Headers (only on CUBX-E) ......................................... 6
2 USB Connectors .................................................................. 23
1 PS/2 Mouse Connector .............................................. (Top) 24
1 PS/2 Keyboard Connector ................................... (Bottom) 24
BIOS AWARD BIOS, Programmable Flash 4Mbit EEPROM ........ 14
Supports Plug & Play, DMI, and Write Protection
Network Features Wake-On-LAN Connector...................................................... 15
Wake-On-Ring Connector ...................................................... 13
Hardware Monitoring System Voltage Monitoring (integrated in ASUS ASIC) ......... 7
3 Fan Power and Speed Monitoring Connectors
Power ATX Power Supply Connector ................................................. 2
Special Features Onboard Power LED .............................................................. 11
Promise® UltraDMA/100 Controller (only on CUBX-E) ...... 19
Form Factor ATX
ASUS CUBX-L/CUBX-E User’s Manual
12
2. FEATURES
2.2.1 Component Locations
1
2
3
4
5
4
3
2
1
0
9
8
7
6
5
4
3
12
11 10 9 8 7
6
ASUS CUBX-L/CUBX-E User’s Manual
13
3. HARDWARE SETUP
3.1 CUBX-L/CUBX-E Motherboard Layout
21.8 cm (8.6 in)
PS/2KBMS
ATXPWR
T: Mouse
CPU_FAN
PWR_FAN
B: Keyboard
USB
T: Port1
B: Port
2
COM1
JTPWR
Socket 370
Intel
COM2
440BX
AGPset
Promise
ATA100
0
1
2
3
4
5
6
7
Row
CR2032 3V
Accelerated Graphics Port
Lithium Cell
DSW
DIP
Switches
CMOS Power
LED1
PCI1
PCI2
FLOPPY
Multi-I/O
SMB
WOL_CON
CHASIS
CHA_FAN
PCI3
PCI4
PCI5
Intel
PIIX4E CLRTC
PCIset
ASUS
ASIC
with
Hardware
Monitor
WOR
JEN
USB3A
USB2
PANEL
ISA1
ISA2
IDELED
IR
(Grayed components are only available on the CUBX-E motherboard.)
ASUS CUBX-L/CUBX-E User’s Manual
14
3. HARDWARE SETUP
3.2 Layout Contents
Motherboard Settings
1) JEN
p. 18 JumperFree Mode Setting (Disable/Enable)
p. 20 AGP Bus Frequency Setting
2) DSW 6
3) DSW 5–10
4) DSW 1-4
p. 20 CPU External Frequency Selection
p. 21 CPU Core:BUS Frequency Multiple Selection
Expansion Slots/Sockets
1) System Memory
p.22 System Memory Support
p.22 DIMM Memory Module Support
p.25 CPU Support
2) DIMM1/2/3/4
3) Socket 370
4) PCI1/2/3/4/5
5) ISA1/ISA2
6) AGP
p.27 32-bit PCI Bus Expansion Slots
p.27 16-bit ISA Bus Expansion Slots
p.29 Accelerated Graphics Port
Connectors
1) PS2KBMS
p.30 PS/2 Mouse Port Connector (6 pin-female)
p.30 PS/2 Keyboard Port Connector (6-pin female)
p.31 Universal Serial Bus Connectors 1 & 2 (Two 4-pin female)
p.31 Parallel Port Connector (25-pin female)
p.31 Serial Port Connector (Two 9-pin male)
p.32 Chassis Intrusion Lead (4-1 pins)
2) PS2KBMS
3) USB
4) PRINTER
5) COM1/COM2
6) CHASSIS
7) PRIMARY IDE
SECONDARY IDE
THIRD IDE
p.33 UltraDMA/66 IDE Connectors (Two 40-1 pins)
UltraDMA/100 IDE Connectors (only on CUBX-E)
FOURTH IDE
8) FLOPPY
9) WOL_CON
10) WOR
p. 33 Floppy Disk Drive Port Connector (34 pins)
p. 34 Wake-On-LAN Connector (3 pins)
p. 34 Wake-On-Ring Connector (2 pins)
p. 35 IDE Activity LED (2 pins)
11) IDELED
12) PWR_, CPU_,CHA_FAN p. 35 Chassis, Power Supply, CPU Fan Connectors (3 pins)
13) IR
p. 36 Infrared Module Connector (5 pins)
p. 37 SMBus Connector (5-1 pins)
14) SMB
15) USB2, USB3A
16) PWR.LED (PANEL
p. 37 USB Headers (10-1 pins, 5-1 pins)
p. 38 System Power LED Lead (3 pins)
p. 38 Keyboard Lock Switch Lead (2 pins)
p. 38 System Warning Speaker Connector (4 pins)
)
17) KEYLOCK (PANEL
)
18) SPEAKER (PANEL)
ASUS CUBX-L/CUBX-E User’s Manual
15
3. HARDWARE SETUP
19) MSG.LED (PANEL)
p. 38 System Message LED (2 pins)
20) SMI (PANEL)
21) PWR.SW (PANEL)
22) RESET (PANEL)
23) ATXPWR
p. 38 System Management Interrupt Lead (2 pins)
p. 38 ATX / Soft-Off Switch Lead (2 pins)
p. 38 Reset Switch Lead (2 pins)
p. 39 ATX Power Supply Connector (20 pins)
p. 39 Power Supply Thermal Sensor Connector (2 pins)
24) JTPWR
ASUS CUBX-L/CUBX-E User’s Manual
16
3. HARDWARE SETUP
3.3 Hardware Setup Procedure
Before using your computer, you must complete the following steps:
1. Check Motherboard Settings
2. Install Memory Modules
3. Install the Central Processing Unit (CPU)
4. Install Expansion Cards
5. Connect Ribbon Cables, Panel Wires, and Power Supply
6. Setup the BIOS Software
3.4 Motherboard Settings
This section explains in detail how to change your motherboard’s function settings
through the use of switches and/or jumpers.
WARNING! Computer motherboards and expansion cards contain very delicate
Integrated Circuit (IC) chips. To protect them against damage from static electric-
ity, you should follow some precautions whenever you work on your computer.
1. Unplug your computer when working on the inside.
2. Use a grounded wrist strap before handling computer components. If you
do not have one, touch both of your hands to a safely grounded object or to
a metal object, such as the power supply case.
3. Hold components by the edges and try not to touch the IC chips, leads or
connectors, or other components.
4. Place components on a grounded antistatic pad or on the bag that came with
the component whenever the components are separated from the system.
WARNING! Make sure that you unplug your power supply when adding or
removing system components. Failure to do so may cause severe damage to
your motherboard, peripherals, and/or components. The onboard LED when lit
acts as a reminder that the system is in suspend or soft-off mode and not powered
OFF.
ON
OFF
Standby
Power
Powered
Off
CUBX-L/CUBX-E Onboard LED
ASUS CUBX-L/CUBX-E User’s Manual
17
3. HARDWARE SETUP
Motherboard Features Settings (DIP Switches - DSW)
The motherboard’s onboard functions are adjusted through the DIP switches. The
white block represents the switch’s position. The example below shows all the
switches in the OFF position.
1. Frequency Multiple
2. Frequency Multiple
3. Frequency Multiple
4. Frequency Multiple
5. (Reserved)
6. AGP Frequency Selection
7. Frequency Selection
8. Frequency Selection
9. Frequency Selection
10. Frequency Selection
DSW
ON
ON
OFF
1 2 3 4 5 6 7 8 9 10
CUBX-L/CUBX-E DIP Switches
1) JumperFree™ Mode (JEN)
This jumper allows you to enable or disable the JumperFree™ mode. The
JumperFree™ mode allows processor settings to be made through the BIOS
setup (see 4.4 Advanced Menu).
Setting
Enable (JumperFree) [2-3] (default)
Disable (Jumper) [1-2]
JEN
DSW
ON
OFF
1 2 3 4 5 6 7 8 9 10
JEN
1 2
2 3
JumperFree
Jumper
CUBX-L/CUBX-E Jumper Mode Setting
NOTE: In JumperFree™ mode, all dip switches (DSW) must be set to OFF.
ASUS CUBX-L/CUBX-E User’s Manual
18
3. HARDWARE SETUP
2) AGP Bus Frequency Setting (DSW Switch 6)
Thisoptionsetsthefrequency ratio between theAGPbus frequency and the DRAM
(CPU bus) frequency. The default sets the AGP bus frequency to be 2/3 of the
DRAM frequency. When the CPU/DRAM frequency is set to 66MHz, set this
switch to [ON]. See the processor table on the next page.
Setting
DRAM Freq. x 2/3
DRAM Freq. x 1
DSW Switch 6
[OFF] (default)
[ON]
ON
ON
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
DRAM Freq. x1
DRAM Freq. x2/3
CUBX-L/CUBX-E AGP Bus Frequency Setting
ASUS CUBX-L/CUBX-E User’s Manual
19
3. HARDWARE SETUP
3) CPU External Frequency Selection (DSW Switches 7-10)
This option tells the clock generator what frequency to send to the CPU, DRAM, and
the PCI bus.This allows the selection of the CPU’s External frequency (or BUS Clock).
The BUS Clock multiplied by the Frequency Multiple equals the CPU’s Internal fre-
quency (the advertised CPU speed).
ON
ON
ON
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
CPU/DRAM→
83.0MHz
41.6MHz
66.0MHz
33.4MHz
75.0MHz
37.5MHz
PCI BUS
→
ON
ON
ON
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
CPU/DRAM→
100.0MHz
33.4MHz
103.0MHz
34.3MHz
105.0MHz
35.0MHz
PCI BUS
→
ON
ON
ON
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
CPU/DRAM→110.0MHz
112.0MHz
37.3MHz
115.0MHz
38.3MHz
PCI BUS → 36.7MHz
ON
ON
ON
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
CPU/DRAM→
120.0MHz
40.0MHz
124.0MHz
41.3MHz
124.0MHz
31.0MHz
PCI BUS
→
ON
ON
ON
CUBX-L/CUBX-E CPU
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
External Frequency
Selection
CPU/DRAM→
133.0MHz
44.3MHz
140.0MHz
35.0MHz
133.0MHz
→
33.3MHz
PCI BUS
ON
1 2 3 4 5 6 7 8 9 10
CPU/DRAM→150.0MHz
PCI BUS → 37.5MHz
NOTE: Overclocking your processor is not recommended. It may result in a slower
speed.
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3. HARDWARE SETUP
4) CPU Core:BUS Frequency Multiple (DSW Switches 1-4)
This option sets the frequency multiple between the Internal frequency of the
CPU and the CPU’s External frequency. These must be set in conjunction with the
CPU Bus Frequency.
ON
ON
ON
DSW
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
2.0x(2/1)
3.0x(3/1)
2.5x(5/2)
ON
ON
ON
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
3.5x(7/2)
4.0x(4/1)
4.5x(9/2)
ON
ON
ON
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
6.0x(6/1)
5.0x(5/1)
5.5x(11/2)
ON
ON
ON
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
6.5x(13/2)
7.0x(7/1)
7.5x(15/2)
CUBX-L/CUBX-E CPU :
BUS Frequency Multiple
ON
ON
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
8.0x(8/1)
TEST
Manual CPU Settings
NOTE: JumperFree mode must be disabled .
Set the DIP switches by the Internal speed of your processor as follows:
(CPU BUS Freq.)
10
(Freq. Multiple)
(AGP)
6
Intel CPU Model
Pentium III
Pentium III
Pentium III
Pentium III
Pentium III
Pentium III
Pentium III
Pentium III
Freq. Mult. Bus F.
7
8
9
1
2
3
4
800MHz 8.0x 100MHz [OFF][OFF][OFF] [ON] [ON] [ON] [OFF][OFF] [OFF]
750MHz 7.5x 100MHz [OFF][OFF][OFF] [ON] [OFF][OFF] [ON] [OFF] [OFF]
700MHz 7.0x 100MHz [OFF][OFF][OFF] [ON] [ON] [OFF] [ON][OFF]] [OFF]
650MHz 6.5x 100MHz [OFF][OFF][OFF] [ON] [OFF] [ON] [ON] [OFF] [OFF]
600MHz 6.0x 100MHz [OFF][OFF][OFF] [ON] [ON] [ON] [ON] [OFF] [OFF]
550MHz 5.5x 100MHz [OFF][OFF][OFF] [ON] [OFF][OFF][OFF] [ON] [OFF]
500MHz 5.0x 100MHz [OFF][OFF][OFF] [ON] [ON] [OFF][OFF] [ON] [OFF]
450MHz 4.5x 100MHz [OFF][OFF][OFF] [ON] [OFF] [ON] [OFF] [ON] [OFF]
Celeron
Celeron
Celeron
Celeron
Celeron
Celeron
Celeron
Celeron
Celeron
533MHz 8.0x 66MHz [OFF][OFF] [ON] [ON] [ON] [ON] [OFF][OFF] [ON]
500MHz 7.5x 66MHz [OFF][OFF] [ON] [ON] [OFF][OFF] [ON] [OFF] [ON]
466MHz 7.0x 66MHz [OFF][OFF] [ON] [ON] [ON] [OFF] [ON] [OFF] [ON]
433MHz 6.5x 66MHz [OFF][OFF] [ON] [ON] [OFF] [ON] [ON] [OFF] [ON]
400MHz 6.0x 66MHz [OFF][OFF] [ON] [ON] [ON] [ON] [ON] [OFF] [ON]
366MHz 5.5x 66MHz [OFF][OFF] [ON] [ON] [OFF][OFF][OFF] [ON] [ON]
333MHz 5.0x 66MHz [OFF][OFF] [ON] [ON] [ON] [OFF][OFF] [ON] [ON]
300MHz 4.5x 66MHz [OFF][OFF] [ON] [ON] [OFF] [ON] [OFF] [ON] [ON]
266MHz 4.0x 66MHz [OFF][OFF] [ON] [ON] [ON] [ON] [OFF] [ON] [ON]
For updated processor settings, please visit ASUS’ web site (see ASUS CONTACT INFORMATION).
WARNING! Frequencies other than the recommended CPU bus frequencies
are not guaranteed to be stable.
ASUS CUBX-L/CUBX-E User’s Manual
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3. HARDWARE SETUP
3.5 System Memory (DIMM)
NOTE: No hardware or BIOS setup is required after adding or removing memory.
This motherboard uses only Dual Inline Memory Modules (DIMMs). Sockets are
available for 3.3Volt (power level) unbuffered Synchronous Dynamic Random Ac-
cess Memory (SDRAM). One side (with memory chips) of the DIMM takes up one
row on the motherboard.
To utilize the chipset’s Error Checking and Correction (ECC) feature, you must use a
DIMM module with 9 chips per side (standard 8 chips/side + 1 ECC chip).
Memory speed setup is recommended through SDRAM Configuration in 4.4.1
Chip Configuration.
Install memory in any combination as follows:
DIMM Location
168-pin DIMM
Total Memory
Socket 1 (Rows 0&1)
Socket 2 (Rows 2&3)
Socket 3 (Rows 4&5)
Socket 4 (Rows 6&7)
SDRAM 8, 16, 32, 64, 128, 256MB
SDRAM 8, 16, 32, 64, 128, 256MB
SDRAM 8, 16, 32, 64, 128, 256MB
SDRAM 8, 16, 32, 64, 128, 256MB
x1
x1
x1
x1
Total System Memory (Max 1024MB) =
3.5.1 General DIMM Notes
•
For the system CPU bus to operate at 100MHz, use only PC100-compliant
DIMMs. When this motherboard operates at 100MHz, most system will not
even boot if non-compliant modules are used because of the strict timing issues
involved under this speed. If your DIMMs are not PC100-compliant, set the
CPU bus frequency to 66MHz RAM to ensure system stability.
ASUS motherboards support SPD (Serial Presence Detect) DIMMs. This is the
memory of choice for best performance vs. stability.
•
•
•
Two possible memory chips are supported: SDRAM with and without ECC.
SDRAM chips are generally thinner with higher pin density than EDO (Ex-
tended Data Output) chips.
•
•
BIOS shows SDRAM memory on bootup screen.
Single-sided DIMMs come in 16, 32, 64,128MB; double-sided come in 32, 64,
128, 256MB.
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3. HARDWARE SETUP
3.5.2 Memory Installation
WARNING! Make sure that you unplug your power supply when adding or
removing memory modules or other system components. Failure to do so may
cause severe damage to both your motherboard and expansion cards (see 3.3
Hardware Setup Procedure for more information).
Insert the module(s) as shown. Because the number of pins are different on either
side of the breaks, the module will only fit in the orientation shown. DRAM SIMM
modules have the same pin contacts on both sides. SDRAM DIMMs have different
pin contacts on each side and therefore have a higher pin density.
Lock
88 Pins
60 Pins
20 Pins
CUBX-L/CUBX-E 168-Pin DIMM Memory Sockets
The DIMMs must be 3.3Volt unbuffered SDRAMs. To determine the DIMM type,
check the notches on the DIMMs (see figure below).
The notches on the DIMM will shift between left, center, or right to identify the type
and also to prevent the wrong type from being inserted into the DIMM slot on the
motherboard. You must tell your retailer the correct DIMM type before purchasing.
This motherboard supports four clock signals per DIMM.
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3. HARDWARE SETUP
(This page was intentionally left blank.)
ASUS CUBX-L/CUBX-E User’s Manual
24
3. HARDWARE SETUP
3.6 Central Processing Unit (CPU)
The motherboard provides a ZIF Socket 370. The CPU that came with the mother-
board should have a fan attached to it to prevent overheating. If this is not the case,
then purchase a fan before you turn on your system.
WARNING! Be sure that there is sufficient air circulation across the processor’s
heatsink by regularly checking that your CPU fan is working. Without sufficient
circulation, the processor could overheat and damage both the processor and the
motherboard. You may install an auxiliary fan, if necessary.
To install a CPU, first turn off your system and remove its cover. Locate the ZIF
socket and open it by first pulling the lever sideways away from the socket then
upwards to a 90-degree angle. Insert the CPU with the correct orientation as shown.
The notched corner should point towards the end of the lever. Because the CPU has
a corner pin for two of the four corners, the CPU will only fit in the orientation as
shown. The picture is for reference only; you should have a CPU fan that covers the
face of the CPU. With the added weight of the CPU fan, no force is required to
insert the CPU. Once completely inserted, close the socket’s lever while holding
down the CPU.After the CPU is , install an Intel recommended fan heatsink. Locate
the CPU fan connector (see 3.1 Motherboard Layout or 3.8 Connectors) and con-
nect the CPU fan cable to it.
NOTE: Do not forget to set the correct Bus Frequency and Multiple (frequency
multiple setting is available only on unlocked processors) for your Socket 370 pro-
cessor or else boot-up may not be possible. Socket 370 processors provide internal
thermal sensing so that a socket mounted thermal resistor is not needed.
CAUTION! Be careful not to scrape the motherboard when mounting a clamp-
style processor fan or else damage may occur to the motherboard.
Socket 370 CPU (Top) Socket 370 CPU (Bottom)
Celeron
Notch
Pentium III
CUBX-L/CUBX-E
Socket 370
Golden Arrow
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3. HARDWARE SETUP
3.7 Expansion Cards
WARNING! Unplug your power supply when adding or removing expansion
cards or other system components. Failure to do so may cause severe damage to
both your motherboard and expansion cards.
3.7.1 Expansion Card Installation Procedure
1. Read the documentation for your expansion card and make any necessary hard-
ware or software settings for your expansion card, such as jumpers.
2. Remove your computer system’s cover and the bracket plate on the slot you
intend to use. Keep the bracket for possible future use.
3. Carefully align the card’s connectors and press firmly.
4. Secure the card on the slot with the screw you removed above.
5. Replace the computer system’s cover.
6. Set up the BIOS if necessary
(such as IRQ xx Used By ISA: Yes in 4.4.3 PCI Configuration)
7. Install the necessary software drivers for your expansion card.
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3. HARDWARE SETUP
3.7.2 Assigning IRQs for Expansion Cards
Some expansion cards need an IRQ to operate. Generally, an IRQ must be exclu-
sively assigned to one use. In a standard design, there are 16 IRQs available but
most of them are already in use, leaving 6 IRQs free for expansion cards. If your
motherboard has PCI audio onboard, an additional IRQ will be used. If your moth-
erboard also has MIDI enabled, another IRQ will be used, leaving 4 IRQs free.
IMPORTANT: If using PCI cards on shared slots, make sure that the drivers sup-
port “Share IRQ” or that the cards do not need IRQ assignments. Conflicts will arise
between the two PCI groups that will make the system unstable or cards inoperable.
The following table lists the default IRQ assignments for standard PC devices. Use
this table when configuring your system and for resolving IRQ conflicts.
Standard Interrupt Assignments
IRQ
0
1
Priority
Standard Function
System Timer
Keyboard Controller
1
2
2
N/A
11
12
13
14
15
3
4
5
6
7
Programmable Interrupt
Communications Port (COM2)
Communications Port (COM1)
Sound Card (sometimes LPT2)
Floppy Disk Controller
Printer Port (LPT1)
System CMOS/Real Time Clock
ACPI Mode when used
IRQ Holder for PCI Steering
IRQ Holder for PCI Steering
PS/2 Compatible Mouse Port
Numeric Data Processor
Primary IDE Channel
3*
4*
5*
6
7*
8
9*
10*
11*
12*
13
14*
15*
8
9
10
Secondary IDE Channel
*These IRQs are usually available for ISA or PCI devices.
Interrupt Request Table for this Motherboard
INT-A
shared
—
INT-B
—
shared
—
INT-C
—
—
shared
—
—
—
—
—
—
INT-D
—
—
PCI slot 1
PCI slot 2
PCI slot 3
—
—
PCI slot 4
—
—
shared
shared
—
—
shared
—
PCI slot 5
—
—
AGP slot
shared
—
—
—
shared
—
ATA100 controller
Onboard USB controller
SMBus
—
—
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3. HARDWARE SETUP
Both ISA and PCI expansion cards may require IRQs. System IRQs are available to
cards installed in the ISA expansion bus first, then any remaining IRQs are available
to PCI cards. Currently, there are two types of ISA cards.
The original ISA expansion card design, now referred to as legacy ISA cards, re-
quires that you configure the card’s jumpers manually and then install it in any
available slot on the ISA bus. To see a map of your used and free IRQs in Windows
98, the Control Panel icon in My Computer, contains a System icon, which gives
you a Device Manager tab. Double-clicking on a specific hardware device gives
you the Resources tab which shows the Interrupt number and address. Double-click
Computer to see all the interrupts and addresses for your system. Make sure that no
two devices use the same IRQ or your computer will experience problems when
those two devices are in use at the same time.
To simplify this process, this motherboard complies with the Plug and Play (PNP)
specification which was developed to allow automatic system configuration when-
ever a PNP-compliant card is added to the system. For PNP cards, IRQs are as-
signed automatically from those available.
If the system has both legacy and PNP ISA cards installed, IRQs are
assigned to PNP cards from those not used by legacy cards. The PCI and PNP con-
figuration of the BIOS setup utility can be used to indicate which IRQs are being
used by legacy cards. For older legacy cards that do not work with the BIOS, you
can contact your vendor for an ISA Configuration Utility.
An IRQ number is automatically assigned to PCI expansion cards after those used
by legacy and PNP ISA cards. In the PCI bus design, the BIOS automatically as-
signs an IRQ to PCI cards that require an IRQ. To install a PCI card, you need to set
the INT (interrupt) assignment. Since all the PCI slots on this motherboard use an
INTA #, be sure that the jumpers on your PCI cards are set to INT A.
Assigning DMA Channels for ISA Cards
Some ISAcards, both legacy and PNP, may also need to use a DMA(Direct Memory
Access) channel. DMA assignments for this motherboard are handled the same way
as the IRQ assignment process described earlier. You can select a DMA channel in
the PCI and PNP configuration section of the BIOS Setup utility.
IMPORTANT: To avoid conflicts, reserve the necessary IRQs and DMAs for
legacy ISA cards (see 4.4.3 PCI Configuration. Choose Yes in IRQ xx Used By
ISA and DMA x Used By ISA for those IRQs and DMAs you want to reserve).
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3. HARDWARE SETUP
3.7.3 Accelerated Graphics Port (AGP)
This motherboard provides an accelerated graphics port (AGP) slot to support a new
generation of AGP graphics cards with ultra-high memory bandwidth.
CUBX-L/CUBX-E Accelerated Graphics Port (AGP)
WARNING! Make sure that you unplug your power supply when adding or re-
moving an expansion card or other system components. Failure to do so may cause
severe damage to both your motherboard and expansion cards (see 3.3 Hardware
Setup Procedure for more information).
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3. HARDWARE SETUP
3.8 Connectors
WARNING! Some pins are used for connectors or power sources. These are
clearly distinguished from jumpers in the Motherboard Layout. Placing jumper
caps over these connector pins will cause damage to your motherboard.
IMPORTANT: Ribbon cables should always be connected with the red stripe to
Pin 1 on the connectors. Pin 1 is usually on the side closest to the power connec-
tor on hard drives and CD-ROM drives, but may be on the opposite side on
floppy disk drives. Check the connectors before installation because there may
be exceptions. IDE ribbon cables must be less than 46 cm (18 in.), with the
second drive connector no more than 15 cm (6 in.) from the first connector.
1) PS/2 Mouse Connector (Green 6-pin PS2KBMS)
The system will direct IRQ12 to the PS/2 mouse if one is detected. If one is not
detected, expansion cards can use IRQ12. See PS/2 Mouse Function Control
in 4.4 Advanced Menu.
PS/2 Mouse (6-pin Female)
2) PS/2 Keyboard Connector (Purple 6-pin PS2KBMS)
This connection is for a standard keyboard using an PS/2 plug (mini DIN). This
connector will not allow standard AT size (large DIN) keyboard plugs. You
may use a DIN to mini DIN adapter on standard AT keyboards.
PS/2 Keyboard (6-pin Female)
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3. HARDWARE SETUP
3) Universal Serial Bus Ports (Black two 4-pin USB)
Two USB ports are available for connecting USB devices.
USB 1
Universal Serial Bus (USB) 2
4) Parallel Port Connector (Burgundy 25-pin PRINTER)
You can enable the parallel port and choose the IRQ through Onboard Parallel
Port (see 4.4.2 I/O Device Configuration).
NOTE: Serial printers must be connected to the serial port.
Parallel Port (25-pin Female)
5) Serial Port Connectors (Teal/Turquoise 9-pin COM1/COM2)
One serial port is ready for a mouse or other serial devices. A second serial port
is available using a serial port bracket connected from the motherboard to an
expansion slot opening. See Onboard Serial Port 1 in 4.2.2 I/O Device Con-
figuration for settings.
COM1
COM2
Serial Ports (9-pin Male)
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3. HARDWARE SETUP
6) Chassis Intrusion Lead (4-1 pin CHASSIS)
This requires an external detection mechanism such as a chassis intrusion moni-
tor/sensor or microswitch. The sensor is triggered when a high level signal is
sent to the Chassis Signal lead, which occurs when a panel switch or light detec-
tor is triggered. This function requires the optional ASUS CIDB chassis intru-
sion module to be installed (see 7. APPENDIX). If the chassis intrusion lead is
not used, a jumper cap must be placed over pins 3 & 4 to close the circuit.
1
CHASSIS
CUBX-L/CUBX-E Chassis Intrusion Alarm Lead
7) Floppy Disk Drive Connector (34-1 pin FLOPPY)
This connector supports the provided floppy drive ribbon cable. After connect-
ing the single end to the board, connect the two plugs on the other end to the
floppy drives. (Pin 5 is removed to prevent inserting in the wrong orienta-
tion when using ribbon cables with pin 5 plugged).
NOTE: Orient the red stripe to Pin 1.
Floppy Drive Connector
Pin 1
CUBX-L/CUBX-E Floppy Disk Drive Connector
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3. HARDWARE SETUP
8) IDE Connectors
(40-1 pin PRIMARY / SECONDARY IDE)
These connectors support the provided IDE hard disk ribbon cable.
After connecting the single end to the board, connect the two plugs at the other
end to your hard disk(s). If you install two hard disks, you must configure the
second drive to Slave mode by setting its jumper accordingly. Please refer to
your hard disk documentation for the jumper settings. (Pin 20 is removed to
prevent inserting in the wrong orientation when using ribbon cables with
pin 20 plugged).
TIP: You may configure two hard disks to be both Masters with two ribbon
cables – one for the primary IDE connector and another for the secondary IDE
connector and select the boot disk through the BIOS.
NOTE: Orient the red stripe to PIN 1.
PIN 1
CUBX-L IDE Connectors
(40-1 pin THIRD / FOURTH IDE) (only on CUBX-E)
Connect the 40-pin 80-conductor cable’s blue connector to the motherboard’s
primary (recommended) or secondary IDE connector, and then connect the cor-
responding gray connector to your UltraDMA/100 / UltraDMA/66 slave device
(hard disk drive) and the black connector to your UltraDMA/100 / UltraDMA/
66 master device. It is recommended that non-UltraDMA/100 / Ultra/66 devices
be connected to the secondary IDE connector.
NOTE: Orient the red stripe to PIN 1.
PIN 1
PIN 1
CUBX-E IDE Connectors
NOTES: UltraDMA/100 is backward compatible with DMA/66, DMA/33, and
DMA and with existing DMA devices and systems so there is no need to upgrade
current EIDE/IDE drives and host systems.
If you have more than two UltraDMA/100 / UltraDMA/66 devices, you will
need to purchase another UltraDMA/100 / UltraDMA/66 cable.
The hole near the blue connector on the UltraDMA/100 / UltraDMA/66 cable is
intentional.
IMPORTANT: UltraDMA/66 and UltraDMA/100 IDE devices require a 40-pin
80-conductor cable to be enabled.
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3. HARDWARE SETUP
9) Wake-On-LAN Connector (3-pin WOL_CON)
This connector connects to a LAN card with a Wake-On-LAN output, such as the
ASUS PCI-L101 Ethernet card (see 7. APPENDIX). The connector powers up
the system when a wakeup packet or signal is received through the LAN card.
IMPORTANT: This feature requires that Wake-On-LAN features are enabled
(see 4.5.1 Power Up Control) and that your system has an ATX power supply
with at least 720mA +5V standby power.
WOL_CON
+5VSB
Ground
PME
CUBX-L/CUBX-E Wake-On-LAN Connector
10) Wake-On-Ring Connector (2-pin WOR)
This connector connects to internal modem cards with a Wake-On-Ring output.
The connector powers up the system when a ringup packet or signal is received
through the internal modem card. NOTE: For external modems, Wake-On-Ring
is detected through the COM port.
IMPORTANT: This feature requires that Wake-On-Ring features are enabled
(see 4.5.1 Power Up Control) and that your system has an ATX power supply
with at least 720mA +5V standby power.
WOR
1
2
Ground
PIXRI#
CUBX-L/CUBX-E Wake-On-Ring Connector
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3. HARDWARE SETUP
11) IDE Activity LED (2-pin IDELED)
This connector supplies power to the cabinet’s IDE activity LED. Read and
write activity by devices connected to the Primary or Secondary IDE connectors
will cause the LED to light up.
TIP: If the case-mounted LED does not light,
try reversing the 2-pin plug.
IDELED
CUBX-L/CUBX-E IDE Activity LED
12) CPU, Power Supply, Chassis Fan Connectors
(3-pin CPU_FAN, PWR_FAN, CHA_FAN)
These connectors support cooling fans of 350mA (4.2 Watts) or less. Orientate
the fans so that the heat sink fins allow airflow to go across the onboard heat
sink(s) instead of the expansion slots. Depending on the fan manufacturer, the
wiring and plug may be different. The red wire should be positive, while the
black should be ground. Connect the fan’s plug to the board taking into consid-
eration the polarity of the connector.
NOTE: The “Rotation” signal is to be used only by a specially designed fan with
rotation signal. The Rotations per Minute (RPM) can be monitored usingASUS PC
Probe (see 6. SOFTWARE REFERENCE) or Intel LDCM Utility.
WARNING! The CPU and/or motherboard will overheat if there is no airflow
across the CPU and onboard heatsinks. Damage may occur to the motherboard
and/or the CPU fan if these pins are incorrectly used. These are not jumpers,
do not place jumper caps over these pins.
CPU_FAN
PWR_FAN
Rotation
+12V
CHA_FAN
GND
CUBX-L/CUBX-E 12Volt Cooling Fan Power
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3. HARDWARE SETUP
13) Infrared Module Connector (5-pin IR)
This connector supports an optional wireless transmitting and receiving infrared
module. This module mounts to a small opening on system cases that support
this feature. You must also configure the setting through UART2 Use Infrared
(see 4.4.2 I/O Device Configuration) to select whether UART2 is directed for
use with COM2 or IrDA. Use the five pins as shown in Back View and connect
a ribbon cable from the module to the motherboard’s IR connector according to
the pin definitions.
Back View
Front View
IR
+5V
IRTX
GND
(NC)
IRRX
For the infrared feature to be available,
you must connect the optional Infrared
(IrDA) module to the motherboard.
CUBX-L/CUBX-E Infrared Module Connector
14) SMBus Connector (5-1 pin SMB)
This connector allows you to connect SMBus (System Management Bus) de-
vices. SMBus devices communicate by means of the SMBus with an SMBus
host and/or other SMBus devices. SMBus is a specific implementation of an I2C
bus, which is a multi-device bus; that is, multiple chips can be connected to the
same bus and each one can act as a master by initiating data transfer.
1
SMB
CUBX-L/CUBX-E SMBus Connector
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3. HARDWARE SETUP
15) USB Headers (10-1 pin USB2, 5-1 pin USB3A)
If the USB port connectors on the back panel are inadequate, two USB headers
are available for three additional USB port connectors. Connect a 3-port USB
connector set to these headers and mount it to an open slot on your chassis.
1
6
5
USB2
10
1
USB3A
CUBX-E USB Headers
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3. HARDWARE SETUP
16) ATX Power Supply Connector (20-pin block ATXPWR)
This connector connects to an ATX power supply. The plug from the power sup-
ply will only insert in one orientation because of the different hole sizes. Find the
proper orientation and push down firmly making sure that the pins are aligned.
IMPORTANT: Make sure that yourATX power supply can supply at least 10mA
on the +5-volt standby lead (+5VSB). You may experience difficulty in power-
ing ON your system if your power supply cannot support the load. For Wake-
On-LAN support, your ATX power supply must supply at least 720mA +5VSB.
ATXPWR
CUBX-L/CUBX-E ATX Power Connector
17) Power Supply Thermal Sensor Connector (2-pin block JTPWR)
If you have a power supply with thermal monitoring, connect its thermal sensor
cable to this connector.
JTPWR
Power Supply Thermal Sensor Connector
CUBX-L/CUBX-E Thermal Sensor Connector
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3. HARDWARE SETUP
The following PANEL illustration is used for items 18–24.
*
Requires an ATX power supply.
Speaker
Connector
Keyboard Lock
Power LED
Message LED
Reset SW
ATX Power Switch*
SMI Lead
CUBX-L/CUBX-E System Panel Connections
18) System Power LED Lead (3-pin PWR.LED)
This 3-pin connector connects to the system power LED, which lights when the
system is powered on and blinks when it is in sleep or soft-off mode.
19) Keyboard Lock Switch Lead (2-pin KEYLOCK)
This 2-pin connector connects to the case-mounted key switch to allow keyboard
locking. NOTE: When the keyboard is locked, the mouse can still be used.
20) System Warning Speaker Connector (4-pin SPEAKER)
This 4-pin connector connects to the case-mounted speaker.
21) System Message LED Lead (2-pin MSG.LED)
This indicates whether a message has been received from a fax/modem. The
LED will remain lit when there is no signal and blink when there is data re-
ceived. This function requires an ACPI OS and driver support.
22) System Management Interrupt Lead (2-pin SMI)
This allows the user to manually place the system into a suspend mode or “Green”
mode where system activity will be instantly decreased to save electricity and
expand the life of certain components when the system is not in use. This 2-pin
connector (see the preceding figure) connects to the case-mounted suspend switch.
23) ATX Power Switch / Soft-Off Switch Lead (2-pin PWR.SW)
The system power is controlled by a momentary switch connected to this lead.
Pushing the button once will switch the system between ON and SLEEP or ON
and SOFT OFF, depending on your BIOS or OS setting. Pushing the switch
while in the ON mode for more than 4 seconds will turn the system off. The
system power LED shows the status of the system’s power.
24) Reset Switch Lead (2-pin RESET)
This 2-pin connector connects to the case-mounted reset switch for rebooting
your computer without having to turn off your power switch. This is a preferred
method of rebooting to prolong the life of the system’s power supply.
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3. HARDWARE SETUP
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3. HARDWARE SETUP
3.9 Starting Up the First Time
1. After all connections are made, close the system case cover.
2. Be sure that all switches are off (in some systems, marked with ).
3. Connect the power supply cord into the power supply located on the
back of your system case according to your system user’s manual.
4. Connect the power cord into a power outlet that is equipped with a surge
protector.
5. You may then turn on your devices in the following order:
a. Your monitor
b. External SCSI devices (starting with the last device on the chain)
c. Your system power. For ATX power supplies, you need to switch on
the power supply as well as press the ATX power switch on the front
of the case.
6. The power LED on the front panel of the system case will light. For
ATX power supplies, the system LED will light when the ATX power
switch is pressed. The LED on the monitor may light up or switch be-
tween orange and green after the system’s if it complies with “green”
standards or if it has a power standby feature. The system will then run
power-on tests. While the tests are running, the BIOS will alarm beeps
or additional messages will appear on the screen. If you do not see any-
thing within 30 seconds from the time you turn on the power, the system
may have failed a power-on test. Recheck your jumper settings and con-
nections or call your retailer for assistance.
Award BIOS Beep Codes
Beep
Meaning
One short beep when
displaying logo
No error during POST
Long beeps in an endless loop
One long beep followed by
three short beeps
No DRAM installed or detected
Video card not found or video card
memory bad
High frequency beeps when
system is working
CPU overheated
System running at a lower frequency
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4. BIOS SETUP
4.1 Managing and Updating Your BIOS
4.1.1 Upon First Use of the Computer System
It is recommended that you save a copy of the original motherboard BIOS
along with a Flash Memory Writer utility (AFLASH.EXE) to a bootable
floppy disk in case you need to reinstall the BIOS later. AFLASH.EXE is a
Flash Memory Writer utility that updates the BIOS by uploading a new
BIOS file to the programmable flash ROM on the motherboard. This file
works only in DOS mode. To determine the BIOS version of your mother-
board, check the last four numbers of the code displayed on the upper left-
hand corner of your screen during bootup. Larger numbers represent a newer
BIOS file.
1. Type FORMAT A:/S at the DOS prompt to create a bootable system
floppy disk. DO NOT copy AUTOEXEC.BAT & CONFIG.SYS to the
disk.
2. Type COPYD:\AFLASH\AFLASH.EXEA:\ (assuming D is your CD-
ROM drive) to copy AFLASH.EXE to the just created boot disk.
NOTE: AFLASH works only in DOS mode. It will not work with DOS
prompt in Windows and will not work with certain memory drivers that
may be loaded when you boot from your hard drive. It is recommended
that you reboot using a floppy.
3. Reboot your computer from the floppy disk. NOTE: BIOS setup must
specify “Floppy” as the first item in the boot sequence.
4. In DOS mode, type A:\AFLASH <Enter> to run AFLASH.
IMPORTANT! If “unknown” is displayed after Flash Memory:, the memory
chip is either not programmable or is not supported by theACPI BIOS and there-
fore, cannot be programmed by the Flash Memory Writer utility.
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4. BIOS SETUP
5. Select 1. Save Current BIOS to File from the Main menu and press
<Enter>. The Save Current BIOS To File screen appears.
6. Type a filename and the path, for example, A:\XXX-XX.XXX and then
press <Enter>.
4.1.2 Updating BIOS Procedures (only when necessary)
1. Download an updated ASUS BIOS file from the Internet (WWW or
FTP) (see ASUS CONTACT INFORMATION on page 3 for details)
and save to the disk you created earlier.
2. Boot from the disk you created earlier.
3. At the “A:\” prompt, type AFLASH and then press <Enter>.
4. At the Main Menu, type 2 and then press <Enter>. The Update BIOS
Including Boot Block and ESCD screen appears.
5. Type the filename of your new BIOS and the path, for example, A:\XXX-
XX.XXX, and then press <Enter>.
NOTE: To cancel this operation, press <Enter>.
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4. BIOS SETUP
6. When prompted to confirm the BIOS update, press Y to start the update.
7. The utility starts to program the new BIOS information into the flash
ROM. The boot block will be updated automatically only when neces-
sary. This will minimize the chance of a failed updating. When the pro-
gramming is finished, Flashed Successfully will be displayed.
8. Follow the onscreen instructions to continue.
WARNING! If you encounter problems while updating the new BIOS,
DO NOT turn off your system since this might prevent your system from
booting up. Just repeat the process, and if the problem still persists, up-
date the original BIOS file you saved to disk above. If the Flash Memory
Writer utility was not able to successfully update a complete BIOS file,
your system may not be able to boot up. If this happens, your system will
need servicing.
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4. BIOS SETUP
4.2 BIOS Setup Program
This motherboard supports a programmable EEPROM that can be updated using
the provided utility as described in 4.1 Managing and Updating Your BIOS.
The utility is used if you are installing a motherboard, reconfiguring your system,
or prompted to “Run Setup”. This section describes how to configure your system
using this utility.
Even if you are not prompted to use the Setup program, at some time in the future
you may want to change the configuration of your computer. For example, you
may want to enable the Security Password Feature or make changes to the power
management settings. It will then be necessary 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 EEPROM.
The EEPROM on the motherboard stores the Setup utility. When you start up the
computer, the system provides you with the opportunity to run this program. This
appears during the Power-On Self Test (POST). Press <Delete> to call up the Setup
utility. If you are a little bit late in pressing the mentioned key, POST will continue
with its test routines, thus preventing you from calling up Setup. If you still need to
call Setup, restart the system by pressing <Ctrl> + <Alt> + <Delete>, or by press-
ing the Reset button on the system chassis. You can also restart by turning the
system off and then back on again. But do so only if the first two methods fail.
The Setup program has been 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.
To access the BIOS Setup program, press the <Delete> key after
the computer has run through its POST.
NOTE: Because the BIOS software is constantly being updated, the following
BIOS screens and descriptions are for reference purposes only and may not re-
flect your BIOS screens exactly.
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4. BIOS SETUP
4.2.1 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 Use this menu to enable and make changes to the advanced
features.
POWER
BOOT
EXIT
Use this menu to configure and enable Power Management
features.
Use this menu to configure the default system device used to lo-
cate and load the Operating System.
Use this menu to exit the current menu or specify how 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.
4.2.2 Legend Bar
At the bottom of the Setup screen you will notice 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 alternates and
functions.
Navigation Key(s)
<F1> or <Alt + H>
Function Description
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
← or → (keypad arrow) Selects the menu item to the left or right
↑ or ↓ (keypad arrows) Moves the highlight up or down between fields
- (minus key)
Scrolls backward through the values for the highlighted field
+ (plus key) or spacebar Scrolls forward through the values for the highlighted field
<Enter>
Brings up a selection menu for the highlighted field
Moves the cursor to the first field
<Home> or <PgUp>
<End> or <PgDn>
Moves the cursor to the last field
<F5>
Resets the current screen to its Setup Defaults
Saves changes and exits Setup
<F10>
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4. BIOS SETUP
General Help
In addition to the Item Specific Help window, the BIOS setup program also pro-
vides a General Help screen. This screen can be called up from any menu by sim-
ply pressing <F1> or the <Alt> + <H> combination. The General Help screen lists
the legend keys with their corresponding alternates and functions.
Saving Changes and Exiting the Setup Program
See 4.7 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 docu-
ment. 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 in the left view)
appears to the left of certain fields. This pointer indicates that
a sub-menu can be launched from this field. A sub-menu con-
tains additional options for a field parameter. To call up a sub-
menu, simply move the highlight to the field and press <En-
ter>. The sub-menu will then immediately appear. Use the leg-
end keys to enter values and move from field to field within a
sub-menu just as you would within a menu. Use the <Esc> key to return to the
main menu.
Take some time to familiarize yourself with each of 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>. 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.
NOTE: The item heading in square brackets represents the default setting for
that field.
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4. BIOS SETUP
4.3 Main Menu
When the Setup program is accessed, the following screen appears:
System Time [XX:XX:XX]
Sets your system to the time that you specify (usually the current time).
The format is hour, minute, second. Valid values for hour, minute and sec-
ond are Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59). Use the
<Tab> or <Shift> + <Tab> keys to move between the hour, minute, and
second fields.
System Date [XX/XX/XXXX]
Sets your 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: (100 year range). Use the <Tab> or <Shift>
+ <Tab> keys to move between the month, day, and year fields.
Legacy Diskette A [1.44M, 3.5 in.], Legacy Diskette B [None]
Sets the type of floppy drives 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.]
Floppy 3 Mode Support [Disabled]
This is required to support older Japanese floppy drives. Floppy 3 Mode
support will allow reading and writing of 1.2MB (as opposed to 1.44MB)
on a 3.5-inch diskette. Configuration options: [Disabled] [Drive A]
[Drive B] [Both]
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4. BIOS SETUP
4.3.1 Primary & Secondary Master/Slave
NOTE: Before attempting to configure a hard disk drive, make sure you
have the configuration information supplied by the manufacturer of the
drive. Incorrect settings may cause your system to not recognize the in-
stalled hard disk. To allow the BIOS to detect the drive type automati-
cally, select [Auto].
Type [Auto]
Select [Auto] to automatically detect an IDE hard disk drive. If automatic
detection is successful, the correct values will be filled in for the remaining
fields on this sub-menu. If automatic detection fails, your hard disk drive
may be too old or too new. You can try updating your BIOS or enter the
IDE hard disk drive parameters manually.
NOTE: After the IDE hard disk drive information has been entered into
BIOS, new IDE hard disk drives must be partitioned (such as with FDISK)
and then formatted before data can be read from and write on. Primary
IDE hard disk drives must have its partition set to active (also possible
with FDISK).
Other options for the Type field are:
[None] - to disable IDE devices
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4. BIOS SETUP
IMPORTANT: If your hard disk was already formatted on an older previous system,
incorrect parameters may be detected. You will need to enter the correct parameters
manually or use low-level format if you do not need the data stored on the hard disk.
If the parameters listed differ from the ones used when the disk was formatted, the
disk will not be readable. If the auto-detected parameters do not match the ones that
should be used for your disk, you should enter the correct ones manually by setting
[User Type HDD].
[User Type HDD]
Manually enter the number of cylinders, heads and sectors per track for your drive.
Refer to your drive documentation or look on the drive for this information. If no
drive is installed or if you are removing a drive and not replacing it, select [None].
Translation Method [LBA]
Select the hard disk drive type in this field. When Logical Block Addressing is
enabled, 28-bit addressing of the hard drive is used without regard for cylinders,
heads, or sectors. Note that Logical Block Access may decrease the access speed
of the hard disk. However, LBA Mode is necessary for drives with greater than
504MB in storage capacity. Configuration options: [LBA] [LARGE] [Normal]
[Match Partition Table] [Manual]
Cylinders
This field configures the number of cylinders. Refer to your drive documentation
to determine the correct value to enter into this field. NOTE: To make changes to
this field, the Type field must be set to [User Type HDD] and the Translation
Method field must be set to [Manual].
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4. BIOS SETUP
Head
This field configures the number of read/write heads. Refer to your drive documenta-
tion to determine the correct value to enter into this field. NOTE: To make changes to
this field, the Type field must be set to [User Type HDD] and the Translation Method
field must be set to [Manual].
Sector
This field configures the number of sectors per track. Refer to your drive docu-
mentation to determine the correct value to enter into this field. NOTE: To make
changes to this field, the Type field must be set to [User Type HDD] and the Trans-
lation Method field must be set to [Manual].
CHS Capacity
This field shows the drive’s maximum CHS capacity calculated automatically by
the BIOS from the drive information you entered.
Maximum LBA Capacity
This field shows the drive’s maximum LBA capacity calculated automatically by
the BIOS from the drive information you entered.
Multi-Sector Transfers [Maximum]
This option automatically sets the number of sectors per block to the highest number
supported by the drive. This field can also be configured manually. Note that when
this field is automatically configured, the set value may not always be the fastest
value for the drive. Refer to the documentation that came with your hard drive to
determine the optimal value and set it manually. NOTE: To make changes to this
field, the Type field must be set to [User Type HDD]. Configuration options: [Dis-
abled] [2 Sectors] [4 Sectors] [8 Sectors] [16 Sectors] [32 Sectors] [Maximum]
SMART Monitoring [Disabled]
This allows the enabling or disabling of the S.M.A.R.T. (Self-Monitoring, Analy-
sis and Reporting Technology) system which utilizes internal hard disk drive moni-
toring technology. This feature is normally disabled because system resources used
in this feature may decrease system performance. Configuration options: [Dis-
abled] [Enabled]
PIO Mode [4]
This option lets you set a PIO (Programmed Input/Output) mode for the IDE de-
vice. Modes 0 through 4 provide successively increased performance. Configura-
tion options: [0] [1] [2] [3] [4]
ULTRA DMA Mode [Disabled]
Ultra DMA capability allows improved transfer speeds and data integrity for com-
patible IDE devices. Set to [Disabled] to suppress Ultra DMA capability. NOTE:
To make changes to this field, the Type field must be set to [User Type HDD].
Configuration options: [0] [1] [2] [3] [4] [Disabled]
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4. BIOS SETUP
Other options for “Type:” are:
[CD-ROM] - for IDE CD-ROM drives
[LS-120] - for LS-120 compatible floppy disk drives
[ZIP-100] - for ZIP-100 compatible disk drives
[MO] - for IDE magneto optical disk drives
[Other ATAPI Device] - for IDE devices not listed here
After using the legend keys to make your selections on this sub-menu, press
the <Esc> key to exit back to the Main menu. When the Main menu ap-
pears, you will notice that the drive size appear in the field for the hard disk
drive that you just configured.
4.3.2 Keyboard Features
Boot Up NumLock Status [On]
This field enables users to activate the Number Lock function upon system
boot. Configuration options: [Off] [On]
Keyboard Auto-Repeat Rate [12/Sec]
This controls the speed at which the system registers repeated keystrokes.
Options range from 6 to 30 characters per second. Configuration options:
[6/Sec] [8/Sec] [10/Sec] [12/Sec] [15/Sec] [20/Sec] [24/Sec] [30/Sec]
Keyboard Auto-Repeat Delay [1/4 Sec]
This field sets the time interval for displaying the first and second charac-
ters. Configuration options: [1/4 Sec] [1/2 Sec] [3/4 Sec] [1 Sec]
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4. BIOS SETUP
Language [English]
This allows selection of the BIOS’ displayed language. Configuration options:
[English]
Supervisor Password [Disabled], User Password [Disabled]
This field allows you to set the password. To set the password, highlight the appro-
priate field and press <Enter>.
Type in a password and press <Enter>. You can type up to eight alphanumeric char-
acters. Symbols and other keys are ignored. To confirm the password, type the pass-
word again and press the <Enter>. The password is now set to [Enabled]. This pass-
word allows full access to the BIOS Setup menus.
To clear the password, highlight this field and press <Enter>. The same dialog box
as above will appear. Press <Enter> and the password will be set to [Disabled].
A Note about Passwords
The BIOS Setup program allows you to specify passwords in the Main menu. The
passwords control access to the BIOS and certain security menu options during sys-
tem startup. The passwords are not case sensitive. In other words, it makes no differ-
ence whether you enter a password using upper or lowercase letters.
The BIOS Setup program allows you to specify two separate passwords: a Supervisor
password and a User password. When disabled, anyone may access all BIOS Setup
program functions. When enabled, the Supervisor password is required for entering
the BIOS Setup program and having full access to all menu options.
Forgot the password?
If you forgot the password, you can clear the password by erasing the CMOS
Real Time Clock (RTC) RAM. The RAM data containing the password
information is powered by the onboard button cell battery. To erase the
RTC RAM: (1) Unplug your computer, (2) Short the solder points, (3) Turn
ON your computer, (4) Hold down <Delete> during bootup and enter BIOS
setup to re-enter user preferences.
Intel
CLRTC
Short solder points
PIIX4E
to Clear CMOS
C297
PCIset
CUBX-L/CUBX-E Clear RTC RAM
Halt On [All Errors]
This field determines which types of errors will cause the system to halt.
Configuration options: [All Errors] [No Error] [All but Keyboard] [All but
Disk] [All but Disk/Keyboard]
Installed Memory [XXX MB]
This field displays the amount of conventional memory detected by the
system during bootup. You do not need to make changes to this field. This
is a display only field.
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4. BIOS SETUP
4.4 Advanced Menu
CPU Speed [Manual]
When the motherboard is set to JumperFree mode (see 3.4 Motherboard
Settings), this field allows you to select the internal speed of your CPU.
Available options include multiples of 66 and 100. Select [Manual] if you
want to make changes to the subsequent 2 fields. Note that selecting a fre-
quency higher than the CPU manufacturer recommends may cause the sys-
tem to hang or crash. See System Hangup later in this section.
CPU Core:Bus Freq. Multiple (when CPU Speed is set to [Manual])
This field is for unlocked processors only. This sets the frequency multiple
between the CPU’s internal frequency and external frequency. This must be
set in conjunction with CPU Bus/PCI Frequency to match the speed of
your CPU. Configuration options vary according to the external frequency
of your CPU.
CPU Bus/PCI Freq. (MHz)
(when CPU Speed is set to [Manual])
This feature tells the clock generator what frequencies to
send to the local bus and PCI devices onboard. The bus fre-
quency (external frequency) multiplied by the bus multiple
equals the CPU’s internal frequency (the CPU speed).
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4. BIOS SETUP
CPU Vcore
This field displays the core voltage supplied
to the CPU. If you want to set it manually, al-
ways refer to the CPU documentation for the
reasonable voltage range.
Using Celeron
processors
Using Pentium III
processors
CPU Level 1 Cache, CPU Level 2 Cache [Enabled]
These fields allow you to choose from the default of [Enabled] or choose
[Disabled] to turn on or off the CPU’s Level 1 and Level 2 built-in cache.
Configuration options: [Disabled] [Enabled]
CPU Level 2 Cache ECC Check [Disabled]
This function controls the ECC capability in the CPU level 2 cache. Con-
figuration options: [Disabled] [Enabled]
Processor Serial Number [Disabled]
The Processor Serial Number is a unique number that is added to every
Pentium III processor to help verify the identity of the user across the Internet.
Set this field to [Enabled] when you need increased security for doing busi-
ness online or e-commerce. Otherwise, leave it to its default setting of [Dis-
abled] for greater anonymity when surfing the Internet. NOTE: This field
is available only when a Pentium III processor is installed in your system.
BIOS Update [Enabled]
This functions as an update loader integrated into the BIOS to supply the
processor with the required data. In the default position of [Enabled], the
BIOS will load the update on all processors during system bootup. Configu-
ration options: [Disabled] [Enabled]
PS/2 Mouse Function Control [Auto]
The default of [Auto] allows the system to detect a PS/2 mouse on startup.
If detected, IRQ12 will be used for the PS/2 mouse. IRQ12 will be reserved
for expansion cards only if a PS/2 mouse is not detected. [Enabled] will
always reserve IRQ12, whether on startup a PS/2 mouse is detected or not.
Configuration options: [Enabled] [Auto]
USB Legacy Support [Auto]
The default of [Auto] allows the system to detect a USB device on startup. If
detected, USB controller legacy mode will be enabled. If not detected, USB
controller legacy mode will be disabled. When this field is set to [Disabled],
USB controller legacy mode is disabled no matter whether you are using a
USB device or not. Configuration options: [Disabled] [Enabled] [Auto]
OS/2 Onboard Memory > 64M [Disabled]
When using OS/2 operating systems with installed DRAM of greater than
64MB, you need to set this option to [Enabled]; otherwise, leave this on
[Disabled]. Configuration options: [Disabled] [Enabled]
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