Asus CUSL2-C BP User manual

®
CUSL2-C
Intel®815EPATX Motherboard
USER’S MANUAL

2ASUS CUSL2-C User’s Manual
USER'S NOTICE
Product Name: ASUS CUSL2-C
Manual Revision: 1.04 E639
Release Date: November 2000
No part of this manual, including the products and software described in it, may be repro-
duced, transmitted, transcribed, stored in a retrieval system, or translated into any language in
any form or by any means, except documentation kept by the purchaser for backup purposes,
without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OR CONDITIONS OF MERCHANTABILITYOR FITNESS FORAPAR-
TICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS,
EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDEN-
TAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF
PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSI-
NESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL
OR PRODUCT.
Product warranty or service will not be extended if: (1) the product is repaired, modified or
altered, unless such repair, modification of alteration is authorized in writing byASUS; or (2)
the serial number of the product is defaced or missing.
Products and corporate names appearing in this manual may or may not be registered trade-
marks or copyrights of their respective companies, and are used only for identification or
explanation and to the owners’ benefit, without intent to infringe.
• Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated.
• Intel, LANDesk, and Pentium are registered trademarks of Intel Corporation.
• Trend and ChipAwayVirus are trademarks of Trend Micro, Inc.
• Windows and MS-DOS are registered trademarks of Microsoft Corporation.
The product name and revision number are both printed on the product itself. Manual revi-
sions are released for each product design represented by the digit before and after the period
of the manual revision number. Manual updates are represented by the third digit in the manual
revision number.
For previous or updated manuals, BIOS, drivers, or product release information, contactASUS
at http://www.asus.com.tw or through any of the means indicated on the following page.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUALARE FUR-
NISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT
ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COM-
MITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR
ANYERRORS OR INACCURACIESTHATMAYAPPEARINTHIS MANUAL, INCLUD-
ING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Copyright © 2000 ASUSTeK COMPUTER INC. All Rights Reserved.

ASUS CUSL2-C User’s Manual 3
ASUS CONTACT INFORMATION
ASUSTeK COMPUTER INC. (Asia-Pacific)
Marketing
Address: 150 Li-Te Road, Peitou, Taipei, Taiwan 112
Telephone: [phone]
Fax: [phone]
Email: [email protected]
Technical Support
MB/Others (Tel): [phone] (English)
Notebook (Tel): [phone] (English)
Desktop/Server (Tel):[phone] (English)
Fax: [phone]
Email: [email protected]
WWW: www.asus.com.tw
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: [phone]
Email: [email protected]
Technical Support
Fax: [phone]
Email: [email protected]
WWW: www.asus.com
FTP: ftp.asus.com/Pub/ASUS
ASUS COMPUTER GmbH (Europe)
Marketing
Address: Harkortstr. 25, 40880 Ratingen, BRD, Germany
Fax: [phone]
Email: [email protected] (for marketing requests only)
Technical Support
Hotline: MB/Others: [phone] Notebook: [phone]
Fax: [phone]
Support (Email): www.asuscom.de/de/support (for online support)
WWW: www.asuscom.de
FTP: ftp.asuscom.de/pub/ASUSCOM

4ASUS CUSL2-C User’s Manual
CONTENTS
1. INTRODUCTION ............................................................................. 7
1.1 How This Manual Is Organized .................................................. 7
1.2 Item Checklist ............................................................................. 7
2. FEATURES ........................................................................................ 8
2.1 The ASUS CUSL2-C .................................................................. 8
2.2 CUSL2-C Motherboard Components ....................................... 12
3. HARDWARE SETUP ...................................................................... 14
3.1 CUSL2-C Motherboard Layout ................................................ 14
3.2 Layout Contents ........................................................................ 15
3.3 Hardware Setup Procedure ....................................................... 17
3.4 Motherboard Settings................................................................ 17
3.5 System Memory (DIMM) ......................................................... 24
3.5.1 General DIMM Notes .................................................... 24
3.5.2 Memory Installation ...................................................... 25
3.6 Central Processing Unit (CPU) ................................................. 26
3.7 Expansion Cards ....................................................................... 27
3.7.1 Expansion Card Installation Procedure ......................... 27
3.7.2 Assigning IRQs for Expansion Cards............................ 27
3.7.3 Communication and Networking Riser (CNR) Slots .... 28
3.7.4 Accelerated Graphics Port (AGP) Slot .......................... 29
3.8 External Connectors.................................................................. 30
3.9 Starting Up the First Time ........................................................ 43
4. BIOS SETUP..................................................................................... 45
4.1 Managing and Updating Your BIOS ......................................... 45
4.1.1 Upon First Use of the Computer System....................... 45
4.1.2 Updating BIOS Procedures ........................................... 46
4.2 BIOS Setup Program ................................................................ 49
4.2.1 BIOS Menu Bar ............................................................. 50
4.2.2 Legend Bar .................................................................... 50
4.3 Main Menu................................................................................ 52
4.3.1 Primary & Secondary Master/Slave .............................. 53
4.3.2 Keyboard Features ......................................................... 56
4.4 Advanced Menu ........................................................................ 58
4.4.1 Chip Configuration ........................................................ 61
4.4.2 I/O Device Configuration .............................................. 64
4.4.3 PCI Configuration ......................................................... 66
4.4.4 Shadow Configuration ................................................... 68

ASUS CUSL2-C User’s Manual 5
CONTENTS
4.5 Power Menu .............................................................................. 69
4.5.1 Power Up Control.......................................................... 71
4.5.2 Hardware Monitor ......................................................... 73
4.6 Boot Menu ................................................................................ 74
4.7 Exit Menu ................................................................................. 76
5. SOFTWARE SETUP....................................................................... 79
5.1 Install Operating System........................................................... 79
5.2 Start Windows ........................................................................... 79
5.3 CUSL2-C Motherboard Support CD ........................................ 80
5.4 INF Update Utility for Intel 815 Chipset .................................. 82
5.5 Intel 815 Chipset Graphic Control Driver ................................ 83
5.6 Intel LDCM Administrator Setup ............................................. 85
5.7 Intel LDCM Client Setup.......................................................... 87
5.8 ASUS BIOS Flash Utility for LDCM 6.0 ................................. 88
5.9 ASUS PC Probe Vx.xx ............................................................. 89
5.10 Install ASUS Update Vx.xx ...................................................... 90
5.11 Microsoft DirectX 6.0 Driver ................................................... 91
5.12 YAMAHA SoftSynthesizer S-YXG50...................................... 93
5.13 PC-Cillin 98 Vx.xx ................................................................... 93
5.14 Adobe Acrobat Reader Vx.x ..................................................... 94
5.15 Cyberlink Video and Audio Applications ................................. 95
5.16 Uninstalling Programs .............................................................. 96
6. SOFTWARE REFERENCE ............................................................ 99
6.1 Display Properties..................................................................... 99
6.2 ASUS PC Probe ...................................................................... 102
6.3 ASUS LiveUpdate .................................................................. 107
6.4 YAMAHA XGPlayer .............................................................. 108
6.5 CyberLink PowerPlayer SE .................................................... 109
6.6 CyberLink PowerDVD ........................................................... 110
6.7 CyberLink VideoLive Mail ..................................................... 111
7. APPENDIX...................................................................................... 113
7.1 PCI-L101 Fast Ethernet Card ................................................. 113
7.2 Glossary .................................................................................. 115
INDEX ................................................................................................. 119

6ASUS CUSL2-C User’s Manual
FCC & DOC COMPLIANCE
FederalCommunications 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.
CanadianDepartment 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.
CetappareilnumériquedelaclasseBestconformeàlanormeNMB-003duCanada.

ASUS CUSL2-C User’s Manual 7
1.1 How This Manual Is Organized
This manual is divided into the following sections:
1. INTRODUCTION Manual information and checklist
2. FEATURES Production information and specifications
3. HARDWARE SETUP Intructions on setting up the motherboard.
4. BIOS SETUP Intructions on setting up the BIOS
5. SOFTWARE SETUP Intructions on setting up the included software
6. SOFTWARE REFERENCE Reference material for the included software
7. APPENDIX Optional items and general reference
1.2 Item Checklist
Check that your package is complete. If you discover damaged or missing items,
contact your retailer.
1. INTRODUCTION
1. INTRODUCTION
Manual / Checklist
Optional Items
USB Hub CNR card
LAN/Home PNA CNR card
ASUS iPanel
ASUS consumer infrared set
ASUSIrDA-compliantinfrared module
Package Contents
(1) ASUS Motherboard
(1) 40-pin 80-conductor ribbon cable
for internal UltraDMA100/66/33
IDE drives
(1) Ribbon cable for master and
slave IDE drives
(1) Ribbon cable for (1) 5.25”and (2)
3.5”floppy disk drives
(1) Bag of spare jumpers
(1) Support drivers and utilities
(1) This Motherboard User’s Manual
(1) ASUS 2-port USB connector set
with bracket
(1) COM2 Bracket
(1) COM2/VGA EMI ShieldingLabel

8ASUS CUSL2-C User’s Manual
2.1 The ASUS CUSL2-C
TheASUS CUSL2-C motherboard is carefully designed for the demanding PC user
who wants advanced features processed by the fastest processors.
2.1.1Specifications
•Latest Intel Processor Support
Pentium
®
III 100/133MHz FSB FC-PGA
Celeron™66MHz FSB FC-PGA
•North Bridge System Chipset: The Intel
®
815EP chipset supports a 66/100/
133 Front Side Bus (FSB), up to 512MB of PC100/PC133 SDRAM, and AGP
4X mode, which can transport twice the amount of data compared to the current
AGP standard.
•South Bridge System Chipset: The Intel I/O Controller Hub 2 (ICH2) features
support for UltraDMA/100, which allows burst mode data transfer rates of up to
100MB/sec; two USB controllers for a total of 4 USB ports; and six channel
AC97 CODEC support.
•Intel
®
Accelerated Hub Architecture: Features a dedicated high speed hub
link between the ICH2 and GMCH with a bandwidth of 266MB/sec –twice the
maximum bandwidth of the PCI bus.
•PC100/PC133 Memory Support: Equipped with three Dual Inline Memory
Module (DIMM) sockets to support PC100/PC133-compliant SDRAMs (avail-
able in 64, 128, 256, 512MB densities) up to 512MB.
•AGP Slot: Comes with an Accelerated Graphics Port slot that supports AGP
cardsforhighperformance, component levelinterconnecttargetedat3D graphical
applications supporting 133MHz 4X mode. Backward compatible to support
AGP 2X.
•UltraDMA33/66/100 Support: Comes with an onboard PCI Bus Master IDE
controller with two connectors that support four IDE devices on two channels.
Supports UltraDMA/100, UltraDMA/66, UltraDMA/33, PIO Modes 3 & 4 and
Bus Master IDE DMA Mode 2, and Enhanced IDE devices, such as DVD-ROM,
CD-ROM, CD-R/RW, LS-120, and Tape Backup drives.
•Wake-Up Support: Supports Wake-On-LAN and Wake-On-Ring, Keyboard
Wake-Up, and BIOS Wake-Up.
•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.
•Around-the-Clock Intrusion Detection: Chassis intrusion circuitry can log
chassis open events into LDCM. The onboard battery supports detection even
when normal power is removed and through a new design, battery drain is even
lower than the RTC used for keeping time!
2. FEATURES
Specifications
2. FEATURES

ASUS CUSL2-C User’s Manual 9
2. FEATURES
2. FEATURES
Specifications
•FirmwareHub: Provides security-enhancements in computer platforms by sup-
porting Random Number Generator (RNG).
•PC Health Monitoring: Provides an easy way to examine and manage system
status information, such as CPU and systerm voltages, temperatures, and fan
status through the onboard hardware ASUS ASIC and the bundled ASUS PC
Probe or Intel LDCM software.
•CNR Support: A Communication and Networking Riser (CNR) slot provides
an interface to support very affordable multichannel audio, V.90 analog modem,
Home PNA, 10/100 Ethernet networking, and USB hub.
•PCI Expansion Slots: Provides six 32-bit PCI (PCI 2.2 compliant) expansion
slots. All PCI slots can support Bus Master PCI cards, such as SCSI or LAN
cards. (PCI supports up to 133MB/s maximum throughput.)
•Low Pin Count (LPC) Multi-I/O: Provides two high-speed UART compatible
serial ports and one parallel port with EPP and ECP capabilities. UART2 can
also be directed from COM2 to the Infrared Module for wireless connections.
•Enhanced ACPI & Anti-Boot Virus Protection: Programmable BIOS (Flash
EEPROM), offering enhanced ACPI for Windows 98/2000/Millenium
compatibility,built-infirmware-based virus protection, and autodetection of most
devices for virtually automatic setup.
•Smart BIOS: The firmware hub gives a new easy-to-use interface which pro-
videsmorecontrol and protectionoverthemotherboard. ProvidesVcore andCPU/
SDRAM frequency adjustments, boot block write protection, and HD/SCSI/MO/
ZIP/CD/Floppybootselection.Hardwarerandom number generator supports new
security software for data protection and secured Internet transactions.
•Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI mas-
ter busses to the memory and processor.
•Onboard LED: The onboard LED will light up when there is standby power to
the motherboard. This acts as a reminder to the user to turn OFF the power
before plugging and unplugging devices so as not to damage the motherboard,
peripherals, and/or components.
•OneTouchManagement: Supports an optionalASUS iPanel, an easy to access
box with system information LED display, front I/O ports, and space reserved
for a hard disk drive. With an ASUS iPanel, you can monitor your computer
system’s vital components.
•SMBus:Features the SystemManagementBus interface, which is used tophysi-
cally transport commands and information between SMBus devices.

10 ASUS CUSL2-C User’s Manual
2. FEATURES
Performance
2. FEATURES
2.1.2 Specifications–Optional Components
The following onboard components are optional at the time of purchase:
•Onboard Audio: AC97 V2.1 compliant Audio Codec with 3D sound circuitry
and sample rate conversion from 7kHz to 48kHz.
2.1.3 Performance
•UltraPerformance:Onboard IDE Bus Mastercontrollerwithtwoconnectors that
support four IDE devices in two channels. Supports UltraDMA/100, UltraDMA/
66,UltraDMA/33(IDEDMA Mode 2), PIO Modes3&4,andsupports Enhanced
IDEdevices, suchasDVD-ROM,CD-ROM,CD-R/RW,LS-120,andTape Backup
drives.
•High-Speed Data Transfer Interface: IDE transfers using UltraDMA/66 Bus
Master IDE can handle rates up to 66.6MB/s. This motherboard with its chipset
and support for UltraDMA/100 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 upgrade current
EIDE/IDE drives and host systems. (UltraDMA/66/100 requires a 40-pin 80-
conductor cable to be enabled.)
•Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI mas-
ter buses to memory and processor.
•SDRAM Optimized Performance: This motherboard supports PC133-com-
pliant Synchronous Dynamic RandomAccess Memory (SDRAM), which increases
the data transfer rate to 1066MB/s max.
•ACPIReady:ACPI (Advanced ConfigurationandPowerInterface) is alsoimple-
mented on all ASUS smart series motherboards. ACPI provides more Energy
Saving Features for future operating systems (OS) supporting 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 ofACPI, an ACPI-supported OS, such as Windows
98/2000/Millenium, must be used.
•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.
•NewCompliancy:Both the BIOS and hardware levels of the 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 Windows 95/98/NT and later. Color-coded connectors and
descriptive icons make identification easy as required by PC 99.

ASUS CUSL2-C User’s Manual 11
2. FEATURES
2. FEATURES
Intelligence
2.1.4 Intelligence
•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 the fans are set for its normal RPM range and alarm thresholds.
•TemperatureMonitoringandAlert:Topreventsystemoverheatandsystem dam-
age, this motherboard supports processor thermal sensing and auto-protection.
•Voltage Monitoring andAlert: System voltage levels are monitored to ensure
stable current to critical motherboard components. Voltage specifications are
more critical for future processors, so monitoring is necessary to ensure proper
system configuration and management.
•System Resources Alert: Today’s operating systems, such as Windows 98/
Millenium,WindowsNT/2000, require much more memory and hard drive space
to present enormous user interfaces and run large applications. The onboard
hardware ASUS ASIC in conjunction with either the bundled ASUS PC Probe
or Intel LDCM 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.
•Dual Function Power Button: Through BIOS, the power button can be defined
as the “Stand by”(a.k.a. Suspend or Sleep) button or as the Soft-Off (see ATX
Power / Soft-Off Switch Lead in 3.8 Connectors for more information) button.
Regardless of the setting, pushing the power button for more than 4 seconds will
enter the Soft-Off mode.
•Remote Ring On (requires modem): This allows a computer to be turned on
remotely through an internal or external modem. With this benefit on-hand, users
can access any information from their computers from anywhere in the world.
•Message LED (requires ACPI OS support): Message LEDs now act as infor-
mation providers. Through the way a particular LED illuminates, the user can
determine if a message has been received from a fax/modem.A simple glimpse
provides useful information to the user. This function requires ACPI OS and
driver support.
•Peripheral Power Up: Keyboard or Mouse power up can be enabled or dis-
abled through BIOS setup to allow the computer to be powered ON using your
keyboard or mouse click.

12 ASUS CUSL2-C User’s Manual
2. FEATURES
2. FEATURES
MB Components
2.2 CUSL2-C Motherboard Components
See opposite page for locations. Location
Processor Support Socket 370 for Pentium III/Celeron (FC-PGA) Processors ..... 1
Feature Setting DIP Switches ................................................... 5
Chipsets Intel 815EP Chipset .................................................................. 2
Intel I/O Controller Hub 2 (ICH2) ......................................... 10
Firmware Hub (FWH) ............................................................ 12
Low Pin Count (LPC) Multi-I/O Chipset ............................... 11
Main Memory 3 DIMM Sockets (maximum 512MB support) ........................ 3
PC133 SDRAM support
Expansion Slots 6 PCI Slots .............................................................................. 18
1 Accelerated Graphics Port (AGP) Slot ................................ 19
1 CNR Slot ............................................................................. 15
System I/O USB Headers .......................................................................... 14
1 Floppy Disk Drive Connector ............................................... 6
2 IDE Connectors (UltraDMA/100 Support) ........................... 4
1 Serial COM2 Header ............................................................. 7
1 ASUS iPanel Connector ........................................................ 8
1 Parallel Port Connector ............................................. (Top) 21
1 Serial COM1 Port Connector .............................. (Bottom) 22
2 USB Port Connectors ......................................................... 23
1 PS/2 Mouse Connector .............................................. (Top) 24
1 PS/2 Keyboard Connector ................................... (Bottom) 24
Audio AC’97 V2.1Audio Codec (optional)
1 Game/MIDI Connector (on audio model only)
1 Line Out Connector (on audio model only)
1 Line In Connector (on audio model only)
1 Microphone Connector (on audio model only)
Network Features Wake-On-LAN Connector...................................................... 17
Wake-On-Ring Connector ........................................................ 9
Hardware Monitoring System Voltage Monitoring (integrated in ASUS ASIC) ....... 13
3 Fan Power and Speed Monitoring Connectors
Power ATX Power Supply Connector ............................................... 20
Special Feature Onboard LED ......................................................................... 16
Form Factor ATX

ASUS CUSL2-C User’s Manual 13
2. FEATURES
2. FEATURES
Component Location
2.2.1 Component Locations
1234
12 7
13
18
19
10
21
22
23
65
11
20
17
16
9
14
15 8
24

14 ASUS CUSL2-C User’s Manual
3. HARDWARE SETUP
3.1 CUSL2-C Motherboard Layout
JTPWR
PS/2KBMS
T: Mouse
B: Keyboard
PWR_FAN
GAME_AUDIO
Mic
In
Line
Out
Line
In
PCI1
PCI2
PCI4
PCI3
PANEL
IDELED
FLOPPY
SECONDARYIDE
PRIMARYIDE
CUSL2-C
CHA_FAN
VIDEO
CD1
AUX
®
PLED2
Accelerated Graphics Port (AGP)
CR2032 3V
Lithium Cell
CMOS Power
DIMM1 (64/72 bit, 168-pin module)
1 0
DIMM2 (64/72 bit, 168-pin module)
3 2
CLRTC
DSW
USB2
Socket 370
Audio
Codec
Setting
USB
T: Port1
B: Port
2
COM1
PARALLEL PORT
PCI5
CNR1
Audio
Codec
Super
I/O
ATX Power Connector
CPU_FAN
Firmware
Hub
(FWH)
MODEM
ACHA
WOL_CON
WOR
AAPANEL
MIC2
EARPHONE
JEN
COM2
AFPANEL
ROW
DIMM3 (64/72 bit, 168-pin module)
5 4
DIP
Switches
PCI6
ASUS ASIC
with
Hardware
Monitor
VIO
Intel I/O
Controller
Hub
(ICH2)
Intel
815EP
Chipset
USBPWR01
KBPWR
SMB
USBPWR56
USBP56
Motherboard Layout
3. H/W SETUP
Grayed components are optional at the time of purchase.

ASUS CUSL2-C User’s Manual 15
3. HARDWARE SETUP
3.2 Layout Contents
Motherboard Settings
1) JEN p.18 JumperFree™Mode (Enable/Disable)
2) USBPWR01 p.19 USB Device Wake Up (Enable/Disable)
USBPWR2
USBPWR56
3) ADN# p.20 Onboard Audio CODEC (Enable/Disable)
4) KBPWR p.20 Keyboard Power Up (Enable/Disable)
5) VIO p.21 Voltage I/O Setting (3.3V/3.40V/3.60V)
6) DSW p.22 CPU External Frequency Setting
Expansion Slots
1) DIMM1/2/3 p.24 168-Pin System Memory Support
2) CPU p.26 Central Processing Unit (CPU)
3) PCI1/2/3/4/5/6 p.27 32-bit PCI Bus Expansion Slots
4) CNR1 p.28 Communication and Network Riser Slot
5) AGP p.29 Accelerated Graphics Port (AGP) Slot
Connectors
1) PS2KBMS p.30 PS/2 Mouse Connector (6-pin female)
2) PS2KBMS p.30 PS/2 Keyboard Connector (6-pin female)
3) USB p.31 Universal Serial Bus Ports (Two 4-pin female)
4) PRINTER p.31 Parallel Port Connector (25-pin female)
5) COM1/COM2 p.32 Serial Port Connectors (9-pin male, 10-1 pin)
6) GAME_AUDIO p.33 Game/MIDI Connector (15-pin female) (optional)
7) GAME_AUDIO p.33 Audio Port Connectors (Three 1/8”female) (optional)
8) FLOPPY p.33 Floppy Disk Drive Connector (34-1pins)
9) PRIMARY/SECONDARYIDE p.34 Primary/Secondary IDE Connectors (Two 40-1pins)
10) IDELED p.35 IDE Activity LED (2 pins)
11) CPU_FAN, PWR_FAN p.35 CPU,PowerSupply,ChassisFanConnectors(Three3-pin)
CHA_FAN
12) CD1, AUX, p.36 Internal Audio Connectors (Four 4-pins) (optional)
VIDEO, MODEM
13) EARPHONE p.36 Headphone True-Level Line Out Header (3 pins)
14) MIC2 p.37 Internal Microphone Connector (3 pins)
15) AFPANEL/IR_CON p.37 ASUS iPanel Connector (12-1 pins)
16) AAPANEL p.37 ASUS iPanel Audio Connector (12-1 pins)
17) SMB p.38 SMBus Connector (5-1 pins)
Layout Contents
3. H/W SETUP

ASUS CUSL2-C User’s Manual
3. HARDWARE SETUP
16
Layout Contents
3. H/W SETUP
18) ACHA p.38 Chassis Intrusion Connector (2 pins)
19) WOL_CON p.39 Wake-On-LAN Connector (3 pins)
20) WOR_CON p.39 Wake-On-Ring Connector (2 pins)
21) USB2, USB56 p.40 USB Headers (5-1 pins, 5 pins)
22) ATXPWR p.41 ATX Power Supply Connector (20 pins)
23) JTPWR p.41 Power Supply Thermal Sensor Connector (2 pins)
24) PWRLED (PANEL) p.42 System Power LED Lead (3-1 pins)
25) KEYLOCK (PANEL) p.42 Keyboard Lock Switch Lead (2 pins)
26) SPEAKER (PANEL) p.42 System Warning Speaker Connector (4 pins)
27) MSG.LED (PANEL) p.42 System Message LED (2 pins)
28) SMI (PANEL) p.42 System Management Interrupt Switch Lead (2 pins)
29) PWRSW (PANEL) p.42 ATX Power / Soft-Off Switch Lead (2 pins)
30) RESET (PANEL) p.42 Reset Switch Lead (2 pins)

ASUS CUSL2-C User’s Manual 17
3. HARDWARE SETUP
Motherboard Settings
3. H/W SETUP
3.3 Hardware Setup Procedure
Before using your computer, you must complete the following steps:
•Check Motherboard Settings
•Install Memory Modules
•Install the Central Processing Unit (CPU)
•Install Expansion Cards
•Connect Ribbon Cables, Panel Wires, and Power Supply
3.4 Motherboard Settings
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
nothave 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 con-
nectors, or other components.
4. Placecomponentsonagrounded antistatic pad or on thebagthatcamewith the
component whenever the components are separated from the system.
5. Ensure that the ATX power supply is switched off before you plug in or
remove the ATX power connector on the motherboard.
CUSL2-C Onboard LED
ON OFF
Standby
Power Powered
Off
PLED2
CUSL2-C
®
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.

ASUS CUSL2-C User’s Manual
3. HARDWARE SETUP
18
Motherboard Settings
3. H/W SETUP
Motherboard Feature Settings
The motherboard’s onboard functions are either adjusted through jumpers or DIP
switches. When using DIP switches, the white block represents the switch’s posi-
tion. The example below shows all the switches in the OFF position.
1. Frequency Selection
2. Frequency Selection
3. Frequency Selection
4. Frequency Selection
5. Frequency Selection.
CUSL2-C DIP Switches
DSW
ON OFF
ON
12345
CUSL2-C
®
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).
NOTE: In JumperFree™mode, all dip switches must be set to OFF.
Setting JEN
Disable (Jumper) [1-2]
Enable (JumperFree) [2-3] (default)
CUSL2-C JumperFree™ Mode Setting
JEN
DSW
ON
12345
OFF
Disable
12 Enable(default)
23
CUSL2-C
®

ASUS CUSL2-C User’s Manual 19
3. HARDWARE SETUP
Motherboard Settings
3. H/W SETUP
2) USB Device Wake Up (USBPWR01,USBPWR2, USBPWR56)
These allow you to disable or enable the USB device wake up function. Set these
jumpers to Enable if youwish to use yourUSB devices to wakeup your computer.
This feature requires an ATX power supply that can supply at least 2A on the
+5VSB lead. The default is set to Disable because not all computers have the
appropriate ATX power supply. Your computer will not power ON if you set this
toEnableanddo not havetheappropriateATXpowersupply. NOTE:Thisjumper
must be set in conjunction with Wake On USB for STR State in 4.5.1 Power Up
Control.
NOTES
1. For suspend to RAM function, these jumpers must be set to Enable.
2. The total current consumed must NOT exceed the power supply capability
(+5VSB) whether under normal working conditions or in the sleep mode.
Setting USBPWR01, USBPWR2, USBPWR56
Disable [1-2] (default)
Enable [2-3]
CUSL2-C USB Device Wake Up
Disable
(Default) Enable
1223
USBPWR01
USBPWR2
USBPWR56
CUSL2-C
®

ASUS CUSL2-C User’s Manual
3. HARDWARE SETUP
20
Motherboard Settings
3. H/W SETUP
3) Onboard Audio CODEC Setting (ADN#)
(available on audio model only)
The onboard audio CODEC may be enabled or disabled using all of these jump-
ers. Disable the onboard audio CODEC if you are using an ISA or PCI audio
card on any of the expansion slots or a primary audio/modem CNR on a CNR
slot (see CNR Slot later in this section). If using a PCI audio expansion card,
Onboard AC97 Audio Controller in 4.4.2 I/O Device Configuration must
also be disabled.
Setting ADN#
Enable [1-2] (default)
Disable [2-3]
CUSL2-C Audio Codec Setting
DisableEnable
(Default)
1
22
3
ADN#
ADN#
CUSL2-C
®
4) Keyboard Power Up (KBPWR)
This allows you to disable or enable the keyboard power up function. Set this
jumper to Enable if you wish to use your keyboard (by pressing <Spacebar>) to
power up your computer. This feature requires an ATX power supply that can
supply at least 300mA on the +5VSB lead. The default is set to Disable because
not all computers have the appropriateATX power supply.Your computer will not
power ON if you set this to Enable but do not have the appropriate ATX power
supply. NOTE: This jumper must be set in conjunction with Wake On PS2 KB/
PS2 Mouse/CIR in 4.5.1 Power Up Control.
Setting KBPWR
Enable [1-2] (default)
Disable [2-3]
CUSL2-C Keyboard Power Setting
Enable Disable
12 23
KBPWR
CUSL2-C
®