No part of this manual, including the products and software described in it, may be reproduced,
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 T O THE IMPLIED WARRANTIES
OR CONDITIONS OF MERCHANT ABILITY OR FITNESS FOR A P AR TICULAR PURPOSE.
IN NO EVENT SHALL ASUS, ITS DIRECT ORS, OFFICERS, EMPLOYEES OR AGENTS BE
LIABLE FOR ANY INDIRECT , SPECIAL, INCIDENT AL, OR CONSEQUENTIAL DAMAGES
(INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE
OR DATA, INTERRUPTION OF BUSINESS 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 by ASUS; 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 trademarks
or copyrights of their respective companies, and are used only for identification or explanation
and to the owners’ benefit, without intent to infringe.
• VIA and Apollo Pro133A are trademarks of VIA Technologies, Inc.
• Intel, LANDesk, Pentium, and Celeron are trademarks of Intel Corporation.
• IBM and OS/2 are registered trademarks of International Business Machines.
• Symbios is a registered trademark of Symbios Logic Corporation.
• Windows and MS-DOS are registered trademarks of Microsoft Corporation.
• Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated.
• Trend and ChipAwayVirus are trademarks of Trend Micro, Inc.
The product name and revision number are both printed on the product itself. Manual revisions
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, contact ASUS at
http://www .asus.com.tw or through any of the means indicated on the following page.
SPECIFICA TIONS AND INFORMA TION CONTAINED IN THIS MANUAL ARE FURNISHED
FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME
WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS.
ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR
INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS
AND SOFTWARE DESCRIBED IN IT.
INDEX ................................................................................................... 97
ASUS CUV4X-E User’s Manual5
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 installation.
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 interference 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 approved
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 CUV4X-E User’s Manual
1. INTRODUCTION
1.1How This Manual Is Organized
This manual is divided into the following sections:
1. INTRODUCTIONManual information and checklist
2. FEATURESProduction information and specifications
3. HARDWARE SETUPInstructions on setting up the motherboard.
4. BIOS SETUPInstructions on setting up the BIOS
5. SOFTWARE SETUPInstructions on setting up the included software
6. SOFTWARE REFERENCEReference material for the included software
7. APPENDIXOptional items and general reference
1.2Item Checklist
Check that your package is complete. If you discover damaged or missing items,
contact your retailer.
Manual / Checklist
1. INTRODUCTION
Package Contents
(1) ASUS Motherboard
(1) 40-pin 80-conductor ribbon
cable for internal UltraDMA/66
or UltraDMA/33 IDE drives
(1) Ribbon cable for two 3.5”
floppy disk drives
(1) ASUS Support CD with drivers
and utilities
(1) Bag of spare jumper caps
(1) ASUS 2-port USB Connector
Set
(1) User’s Manual
Optional Items
ASUS Modem MR
ASUS IrDA-compliant infrared
module
ASUS PCI-L101 Wake-On-LAN
10/100 Ethernet Card
ASUS CUV4X-E User’s Manual7
2. FEATURES
2.1ASUS CUV4X-E Motherboard
Powered by Intel® Pentium® III/Coppermine processors, the CUV4X-E motherboard
comes bundled with advanced features to provide outstanding performance. The
CUV4X-E packs in more value by offering plenty of room for expansion making it
truly flexible.
2.1.1Specifications
2. FEATURES
Specifications
•Latest Processor Support
•North Bridge System Chipset: Features the VIA VT82C694X system controller
•South Bridge System Chipset: VIA VT82C686B PCIset with PCI Super I/O
•PC133 SDRAM / VC133 VCM / HSDRAM Support: Equipped with four
•JumperFree™ Mode: Allows processor settings and easy overclocking of
•UltraDMA/100 Support: Comes with an onboard PCI Bus Master IDE controller
•AGP Pro Slot: Comes with an Accelerated Graphics Port (AGP) Pro slot that
•Wake-On-LAN: Supports Wake-On-LAN activity through a WOL connector
PCI-to-ISA bridge with support for AGP 4X/2X mode; 133/100/66MHz Front
Side Bus (FSB); and 133/100/66MHz memory bus.
integrated peripheral controller supports UltraDMA/100/66/33 for burst mode
data transfer rates of up to 100MB/sec, and USB controller with root hub for
four USB ports.
Dual Inline Memory Module (DIMM) sockets to support up to 1.5GB of memory
using Intel PC133/100-compliant or NEC’s VC133-compliant Virtual Channel
(VC) SDRAMs, and Enhanced Memory System’s High-speed DRAMs
(HSDRAMs). VC SDRAM and HSDRAM are new DRAM core architectures
that dramatically improves the memory system’s ability to service high
multimedia requirements.
frequency and Vcore voltage through BIOS setup when the JumperFree™ mode
is enabled. Easy-to-use DIP switches come with the motherboard board to allow
manual adjustment of the processor external/internal frequency.
with two connectors that support four IDE devices on two channels. Supports
UltraDMA/100, UltraDMA/66, UltraDMA/33, PIO Modes 3 & 4, 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.
supports high performance AGP cards targeted at 3D graphical applications
supporting 4X mode. The slot is backward compatible with AGP 4X/2X cards.
or an optional ASUS PCI-L101 10/100 Fast Ethernet PCI card.
III100/133MHz FSBCoppermine coreFC-PGA
8
ASUS CUV4X-E User’s Manual
2. FEATURES
•Wake-On-Ring: Supports Wake-On-Ring activity through a PCI modem card
that supports a WOR connector.
•PC Health Monitoring: Provides an easy way to examine and manage system
status information, such as CPU and system voltages, temperatures, and fan
status through the onboard hardware ASUS ASIC and the bundled ASUS PC
Probe.
•SMBus: Features the System Management Bus interface used to physically
transport commands and information between SMBus devices.
•PCI/AMR Expansion Slots: Includes six 32-bit PCI (Rev . 2.2) expansion slots
that support Bus Master PCI cards, such as SCSI or LAN cards, with 133MB/s
maximum throughput. The motherboard also includes one Audio Modem Riser
(AMR) slot that supports an audio or modem card.
•Super 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.
•Smart BIOS: 2Mb firmware provides Vcore and CPU/SDRAM frequency
adjustments, boot block write protection, and HD/SCSI/MO/ZIP/CD/Floppy boot
selection.
•Enhanced ACPI and Anti-Boot Virus Pr otection: Programmable BIOS (Flash
EEPROM) that offers enhanced ACPI for Windows 98/ME/2000 compatibility,
built-in firmware-based virus protection, and autodetection of most devices for
a virtual automatic setup.
•Integrated Infrared (IrDA) Support: Supports an optional infrared port module
for wireless interface.
•Desktop Management Interface (DMI): Supports DMI through BIOS that
allows hardware to communicate within a standard protocol and create a higher
level of compatibility. (Requires DMI-enabled components.)
•Onboard LED: Comes with a power LED that lights up if there is any standby
power on the motherboard. This LED acts as a reminder to turn off the system
power before plugging or unplugging devices to prevent damage to the
motherboard, peripherals, and other system components.
•Onboard Audio: Audio models come with the C-Media CMI8738 audio chip
to support HR TF-based 3D positional audio through a DirectSound 3D interface.
The audio chipset also supports legacy audio SB16-compatible devices.
•Easy Connectivity and System Information Access: Supports an optional
ASUS iPanel, an easy-to-access box with system diagnostic display area, system
status LEDs, USB ports, and hot keys. The AFPANEL connector on the
motherboard accommodates the ASUS iPanel to allow convenient connectivity
and system monitoring.
Specifications
2. FEATURES
ASUS CUV4X-E User’s Manual9
2. FEATURES
2.1.2Performance
•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 employed in the OS,
PCs can be ready around the clock but comply with energy saving standards. To
fully utilize the ACPI benefits, use an ACPI-supported OS such as Windows
98/ME/2000.
2. FEATURES
Features
•PC’99 Compliant: Both the BIOS and hardware levels of ASUS smart series
motherboards are PC’99 compliant. The new PC’99 requirements for systems
and components are based on the following high-level goals: Support for Plugn-Play compatibility and power management for configuring and managing all
system components, and 32-bit device drivers and installation procedures for
Windows 98/ME/2000. Color-coded connectors and descriptive icons make
identification easy as required by PC’99.
•High-Speed Data Transfer Interface: Support for UltraDMA/100 through the
onboard IDE bus master controller. doubles the UltraDMA/33 burst transfer
rate to 66.6MB/s. UltraDMA/100 is backward compatible with DMA/66,
DMA/33, and other existing DMA devices to save the need to upgrade current
EIDE/IDE drives. (UltraDMA/100/66 requires a 40-pin 80-conductor cable).
•VCM/SDRAM Optimized Performance: This motherboard supports the new
generation memory , NEC 64Mb Virtual Channel Memory (VCM) Synchronous
Dynamic Random Access Memory (SDRAM), that is compatible to the industry
standard SDRAM. The VCM core design provides up to 50% higher SDRAM
speed at reduced power consumption of about 30%. This motherboard also
supports the standard SDRAM for a the data transfer rate of up to 1.067GB/s using
PC133-compliant SDRAMs and up to 800MB/s using PC100-compliant
SDRAMs.
•Power Saving Feature: Suspend-to-RAM (STR) provides maximum power
savings as an alternative to leaving the computer ON. STR allows QuickStart™
when you get back , so you don’t have to go through the long boot process.
(NOTE: This motherboard does not support the Suspend-to-RAM (STR) feature
when you install a DIMM into the DIMM4 socket.)
10
ASUS CUV4X-E User’s Manual
2. FEATURES
2.1.3Intelligence
•Auto Fan Off: The system fans powers off automatically even in sleep mode.
This function reduces both energy consumption and system noise, and is an
important feature in implementing Silent PC systems.
•Dual Function Power Button: Pushing the power button for less than 4 seconds
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 PWRButton < 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 and system fans can be monitored for RPM and failure. All
fans are set for its normal RPM range and alarm thresholds.
•Power LED (requir es ACPI OS support): The power LED indicates the system
status.
•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 vital information from their computers anywhere.
Intelligence
2. FEATURES
•System Resources Alert: Today’s operating systems such as Windows 95/98/
2000/NT and OS/2, require much more memory and hard drive space to present
enormous user interfaces and run large applications. The system resource monitor
warns the user before the system resources are used up to prevent possible
application crashes. Suggestions provide the user some information on managing
their limited resources more efficiently.
•Temperature Monitoring and Alert: CPU temperature is monitored by the
ASUS ASIC through the CPU’s internal thermal diode (on Pentium III and
Celeron) to prevent system overheat and system damage.
•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.
•Chassis Intrusion Detection: Supports chassis-intrusion monitoring through
the ASUS ASIC. A chassis intrusion event is kept in memory on battery power
for more protection.
ASUS CUV4X-E User’s Manual11
2.2Motherboard Components
See opposite page for locations.
Processor SupportSocket 370 for Pentium III/Celeron Processors ....................... 2
23) SPEAKER (PANEL)p. 43 System Warning Speaker Connector (4-pin)
24) MSG.LED (PANEL)p. 43 System Message LED (2-pin)
25) SMI (PANEL)p. 43 System Management Interrupt Lead (2-pin)
26) PWR.SW (PANEL)p. 43 ATX / Soft-Off Switch Lead (2-pin)
27) RESET (PANEL)p. 43 Reset Switch Lead (2-pin)
PANEL
)
p. 43 System Power LED Lead (3-pins)
3. H/W SETUP
Layout Contents
ASUS CUV4X-E User’s Manual15
3. HARDWARE SETUP
3.3Hardware 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
3.4Motherboard Settings
This section tells you how to change motherboard function settings through the
switches and/or jumpers.
Motherboard Settings
3. H/W SETUP
WARNING! Computer motherboards and expansion cards contain very delicate
Integrated Circuit (IC) chips. To avoid damaging them due to static electricity,
follow these precautions whenever you work on your computer .
1.Unplug the computer when working on the internal components.
2.Use a grounded wrist strap or touch a safely grounded object or to a metal
3.Hold components by the edges and try not to touch the IC chips on them.
4.Whenever you uninstall any component, place the components on a grounded
5.Before you install or r emove any component, ensure that the A TX power
object, such as the power supply case, before handling computer components.
antistatic pad or in the bag that came with the components.
supply is switched off or the power cord is detached from the power
supply. Failure to do so may cause severe damage to the motherboard,
peripherals, and/or components.
(TIP: When lit, the onboard LED indicates that the system is in suspend or
soft-off mode, not powered OFF.)
16
CUV4X-E
®
CUV4X-E Onboard LED
ASUS CUV4X-E User’s Manual
ON
Standby
Power
LED
OFF
Powered
Off
3. HARDWARE SETUP
Motherboard Frequency Settings (DIP Switches)
The motherboard frequency is adjusted through the DIP switches. The white block
represents the switch’s position. The example below shows all the switches in the
OFF position.
CUV4X-E
®
< Frequency Multiple
< Frequency Multiple
< Frequency Multiple
< Frequency Multiple
< Frequency Selection
< Frequency Selection
< Frequency Selection
ON
12345678
< Frequency Selection
ON
OFF
CUV4X-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).
NOTE: In JumperFree™ mode, set all DIP switches (DIP_SW) to OFF.
ASUS CUV4X-E User’s Manual17
3. HARDWARE SETUP
2)CPU External Frequency Selection (DIP_SW Switches 5–8)
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 (orBUS Clock). The BUS Clock multiplied by the Frequency Multiple equals the
CPU’s Internal frequency (the advertised CPU speed).
Motherboard Settings
3. H/W SETUP
CUV4X-E CPU External
Frequency Selection
ON
12345678
CPU
PCI
CPU
PCI
CUV4X-E
®
CPU
PCI
CPU
PCI
CPU
PCI
66MHz
33MHz
ON
12345678
80MHz
40MHz
ON
12345678
103MHz
34MHz
ON
12345678
115MHz
38MHz
ON
12345678
133MHz
33MHz
ON
12345678
68MHz
34MHz
ON
12345678
83MHz
42MHz
ON
12345678
105MHz
35MHz
ON
12345678
120MHz
40MHz
ON
12345678
140MHz
35MHz
ON
12345678
75MHz
37MHz
ON
12345678
100MHz
33MHz
ON
12345678
112MHz
37MHz
ON
12345678
124MHz
31MHz
ON
12345678
150MHz
37MHz
W ARNING! Set the CPU frequency only to the recommended settings. Frequencies
other than the recommended CPU bus frequencies are not guaranteed to be stable.
Overclocking the processor is not recommended. It may result in a slower speed.
18
ASUS CUV4X-E User’s Manual
3. HARDWARE SETUP
3)CPU Core:BUS Frequency Multiple (DIP_SW 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.
CUV4X-E
®
CUV4X-E CPU Core:Bus
Frequency Multiple
ON
12345678
2.0x
ON
12345678
3.5x
ON
12345678
5.0x
ON
12345678
6.5x
ON
12345678
8.0x
ON
12345678
2.5x
ON
12345678
4.0x
ON
12345678
5.5x
ON
12345678
7.0x
ON
12345678
Test
ON
12345678
3.0x
ON
12345678
4.5x
ON
12345678
6.0x
ON
12345678
7.5x
3. H/W SETUP
Motherboard Settings
ASUS CUV4X-E User’s Manual19
Manual CPU Settings
NOTE: Disable the JumperFree™ mode when you are manually setting the
CPU frequency through the DIP switches.
Set the DIP switches by the Internal speed of your processor as follows:
For updated processor settings, visit the ASUS web site. See also ASUS CONTACT INFORMATION at the
beginning of this manual.
20
ASUS CUV4X-E User’s Manual
3. HARDWARE SETUP
4)Voltage I/O Setting (VIO)
This jumper allows you to select the voltage supplied to the DRAM, chipset,
AGP, and PCI. Keep the jumper to its default setting Normal. When processor
overclocking requires a higher voltage, set this jumper to 3.6V.
VIO
2
3
CUV4X-E
®
CUV4X-E VIO Setting
12
Normal3.60 Volt
WARNING! Using a higher voltage may help when overclocking the processor
but it may shorten the life of system components. As much as possible, keep the
VIO jumper to its default setting for better system stability.
5)Clear RTC RAM
These two solder points allow you to clear the Real T ime Clock (RTC) RAM in
CMOS. You can clear the CMOS memory of date, time, and system setup
parameters by erasing the CMOS RTC RAM data. The RAM data in CMOS,
that include system setup information such as system passwords, is powered by
the onboard button cell battery.
T o erase the R TC RAM: (1) unplug the computer , (2) short the solder points, (3)
turn ON the computer , (4) hold down the <Del> key during the boot process and
enter BIOS setup to re-enter data.
These jumpers allow you to enable or disable the USB feature on the motherboard.
Set these two jumpers to ENABLE if you wish to use the USB devices to wake
up the computer. This feature requires an ATX power supply that can supply at
least 2A on the +5VSB lead. The default setting for both USBPWR0 and
USBPWR0 is DISABLE.
NOTES:
1.Before setting either of these jumpers to ENABLE, make sure that you have
the appropriate power supply, otherwise the computer does not power up.
2.When using the Suspend-to-RAM feature, set these jumpers to ENABLE.
3.The total current consumed must NOT exceed the power supply capability
(+5VSB) whether under normal working conditions or in sleep mode.
USB_PWR0
Motherboard Settings
3. H/W SETUP
CUV4X-E USB Device Wake Up
2
1
Disable
(Default)
CUV4X-E
®
USB_PWR1
2
1
Disable
(Default)
3
2
Enable
2
Enable
3
22
ASUS CUV4X-E User’s Manual
3. HARDWARE SETUP
3.5System Memory
This motherboard uses only Dual Inline Memory Modules (DIMMs). Four DIMM
sockets are available for 3.3Volt (power level) unbuffered Synchronous Dynamic
Random Access Memory (SDRAM) of 16, 32, 64, 128, 256, 512MB , or 1GB densities
for a system memory configuration of 32MB up to 1.5GB. One side (with memory
chips) of the DIMM takes up one row on the motherboard. This motherboard also
supports NEC’s Virtual Channel SDRAMs and Enhanced Memory System’s High-
speed DRAMs.
IMPORTANT (see General DIMM Notes below for more)
•SDRAMs used must be compatible with the current Intel PC133 SDRAM
specifications.
•DO NOT attempt to mix registered SDRAMs with VCM SDRAMs.
•DIMMs that have more than 18 chips are not supported on this motherboard.
•For the system CPU bus to operate 100MHz/133MHz, use only PC100-/PC133-
compliant DIMMs.
•ASUS motherboards support Serial Presence Detect (SPD) DIMMs. This is the
memory of choice for best performance vs. stability.
•SDRAM chips are generally thinner with higher pin density than EDO (Extended
Data Output) chips.
•BIOS shows SDRAM memory on bootup screen.
•Single-sided DIMMs come in 16, 32, 64,128, 256MB; double-sided come in 32, 64,
128, 256, 512MB.
3. H/W SETUP
System Memory
W ARNING! Make sure that the DIMM you use can handle the specified SDRAM
speeds, otherwise the computer does not boot.
ASUS CUV4X-E User’s Manual23
3.5.2Memory Installation
WARNING!Make sure that you unplug the power supply when adding or
removing memory modules or other system components. Failure to do so may
cause severe damage to both the motherboard and expansion cards (see 3.3Hardware Setup Procedure for more information).
Insert the module(s) into the DIMM sockets as shown. Because the number of pins
are different on either side of the breaks, the module only fits in one direction. SDRAM
DIMMs have different pin contacts on each side and have a higher pin density than
DRAM SIMMs.
System Memory
3. H/W SETUP
3. H/W SETUP
3. HARDWARE SETUP
88 Pins
CUV4X-E
®
60 Pins
20 Pins
CUV4X-E 168-Pin DIMM Sockets
Lock
The DIMMs must be 3.3Volt unbuffered SDRAMs. To determine the DIMM type,
check the notches on the DIMMs (see the figure below).
The notches on the DIMM shifts 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.
24
ASUS CUV4X-E User’s Manual
3. HARDWARE SETUP
3.6Central Processing Unit (CPU)
The motherboard comes with a ZIF Socket for the supported CPUs listed in section
2.1.1 Specifications. The following illustration shows the CPU socket location on
the motherboard and the correct CPU orientation.
Socket 370 CPU (Top) Socket 370 CPU (Bottom)
Celeron
CUV4X-E
®
CUV4X-E Socket 370
Notch
Pentium III
Gold Arrow
Note in the illustration that CPUs have marks (usually a notch or a gold mark on one
corner) to help you identify the proper orientation and enable you to correctly install
a CPU. It is important that you match the marked corner of the CPU with the
corresponding corner on the socket so as not to damage the CPU pins.
The CPU picture above is for reference only. Usually, when you buy a CPU, the
heatsink and fan are already attached to the CPU. If a heatsink and fan did not come
with the package, make sure you obtain one before installing the CPU.
WARNING! You must install the proper heatsink and fan to the CPU. Failure to
do so will cause the CPU to overheat and may damage both the CPU and the
motherboard. Install an auxillary fan, if necessary.
CPU
3. H/W SETUP
CAUTION! Be careful not to scrape the motherboard when mounting/unmounting
a clamp-style processor fan to avoid damaging the motherboard.
Proceed to the next section for the steps on how to properly install a CPU.
ASUS CUV4X-E User’s Manual25
3. HARDWARE SETUP
3.6.1CPU Installation
Follow these steps to install a CPU.
1.Locate the ZIF socket on the
motherboard.
2.Unlock the socket by pressing the
lever sideways then lifting it up to a
90°-100° angle.
CPU Installation
3. H/W SETUP
3.Position the CPU above the socket
4.Carefuly insert the CPU into the
CAUTION! The CPU fits only in one orientation. Do not force the CPU into the
socket to prevent bending the pins and damaging the CPU. If the CPU does not
fit completely, check its orientation or check for bent pins.
5.When the CPU is in place, press it firmly on the socket while you push down the
6.Attach the heatsink and fan to the CPU, if they were not pre-installed by the
such that its notched or marked
corner matches the socket corner
near the end of the lever, while
making sure that the CPU is parallel
to the socket.
socket until it fits in place.
socket lever to secure the CPU. The lever clicks on the socket indicating that it
is locked.
vendor . Refer to the installation instructions that came with the heatsink and fan.
NOTE: Do not forget to set the correct Bus Frequency and Multiple (frequency
multiple setting is available only on unlocked processors) for the processor to avoid
start-up problems.
26ASUS CUV4X-E User’s Manual
3. HARDWARE SETUP
3.7Expansion Cards
In the future, you may need to install expansion cards. The motherboard has six PCI
expansion slots to support these cards. Follow the steps in the next section when
installing expansion cards.
WARNING! Unplug the system power cord when adding or removing expansion
cards or other system components. Failure to do so may cause severe damage to
both the motherboard and expansion cards.
3.7.1Installing an Expansion Card
1.Read the documentation that comes with the expansion card and make any
necessary hardware settings for the card before installing it.
2.Remove the system unit cover and the bracket plate on the slot you intend to use.
Keep the screw for later use.
3.Align the card connectors with the slot and press firmly until the card fits in
place.
4.Secure the card to the slot with the screw you removed earlier.
5.Replace the system cover.
6.Change the necessary BIOS settings, if any.
(see section 4.4.3 PCI Configuration to change the settings.)
7.Install the necessary software drivers for the expansion card.
3. H/W SETUP
Expansion Cards
ASUS CUV4X-E User’s Manual27
3.7.2Assigning IRQs for Expansion Cards
Some expansion cards need an IRQ to operate. Generally , an IRQ must be exclusively
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.
IMPORTANT : If using PCI cards on shared slots, make sure that the drivers support
“Share IRQ” or that the cards do not need IRQ assignments. Conflicts arise between
the two PCI groups that makes 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
IRQPriorityStandard Function
01System Timer
12Keyboard Controller
Expansion Cards
3. H/W SETUP
2N/AProgrammable Interrupt
3*11Communications Port (COM2)
4*12Communications Port (COM1)
5*13Sound Card (sometimes LPT2)
614Floppy Disk Controller
7*15Printer Port (LPT1)
83System CMOS/Real Time Clock
9*4ACPI Mode when used
10*5IRQ Holder for PCI Steering
11*6IRQ Holder for PCI Steering
12*7PS/2 Compatible Mouse Port
138Numeric Data Processor
14*9Primary IDE Channel
15*10Secondary IDE Channel
3. HARDWARE SETUP
*These IRQs are usually available for ISA or PCI devices.
This motherboard has an Accelerated Graphics Port (AGP) Pro slot to support the
new generation graphics cards with ultra-high memory bandwidth.
AGP Card without Retention Notch
CUV4X-E
®
TOP VIEW
20-pin bay
Rib (inside slot)Rib
CUV4X-E Accelerated Graphics Port (AGP PRO)
28-pin bay
CAUTION! The AGP Pro slot is shipped with a warning label over the 20-pin bay .
DO NOT remove this label and the safety tab underneath it if you will be using an
AGP card without a retention notch. Doing so may cause the
card to shift and may cause damage to the card, slot, and
motherboard. Remove the label and tab ONLY when you are
using an AGP Pro card. Use a rigid tip, such as a pen tip, to
dislodge and remove the tab from the bay.
Removing the tab
3. H/W SETUP
Expansion Cards
ASUS CUV4X-E User’s Manual29
3.7.4Audio Modem Riser (AMR) Slot
The AMR slot support a specially designed audio and/or modem card called an
Audio Modem Riser (AMR). Main processing is done through software and controlled
by the system chipset. There are two types of AMR, one defined as primary and
another defined as secondary . You can only use primary AMRs with this motherboard.
(NOTE: The motherboard package does not include the AMR card.)
IMPORTANT The AMR slot shares the same expansion slot with PCI Slot 6.
Because of space limitation, the AMR slot can support only specially designed
AMR cards. The components of a standard AMR card and its bracket face toward
the edge of the motherboard, while those of a specially designed AMR card face
the expansion slots.
Expansion Cards
3. H/W SETUP
3. HARDWARE SETUP
ASUS MR-1
CUV4X-E
®
CUV4X-E Audio Modem Riser (AMR) Slot
Unlike that of standard cards,
the component side of the
specially-designed AMR
card faces the motherboard’s
expansion slots when the
card is installed
30ASUS CUV4X-E User’s Manual
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