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”).
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.
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
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, 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.
SPECIFICATIONS AND INFORMATION 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.
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.
iiii
ii
iiii
Contents
Contents ............................................................................................. iii
Notices ................................................................................................ vi
Safety information ............................................................................. vii
About this guide ............................................................................... viii
P5CR-L(S) specifications summary ...................................................... x
Federal Communications Commission StatementFederal Communications Commission Statement
Federal Communications Commission Statement
Federal Communications Commission StatementFederal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
•
This device may not cause harmful interference, and
•
This device must accept any interference received including interference
that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with
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:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment to an outlet on a circuit different from that to
which the receiver is connected.
•
Consult the dealer or an experienced radio/TV technician for help.
The use of shielded cables for connection of the monitor to the graphics
card is required to assure compliance with FCC regulations. Changes or
modifications to this unit not expressly approved by the party
responsible for compliance could void the user’s authority to operate
this equipment.
Canadian Department of Communications StatementCanadian Department of Communications Statement
Canadian Department of Communications Statement
Canadian Department of Communications StatementCanadian 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 CanadianThis class B digital apparatus complies with Canadian
This class B digital apparatus complies with Canadian
This class B digital apparatus complies with CanadianThis class B digital apparatus complies with Canadian
ICES-003.ICES-003.
ICES-003.
ICES-003.ICES-003.
vivi
vi
vivi
Safety information
Electrical safetyElectrical safety
Electrical safety
Electrical safetyElectrical safety
•
To prevent electrical shock hazard, disconnect the power cable from
the electrical outlet before relocating the system.
•
When adding or removing devices to or from the system, ensure that
the power cables for the devices are unplugged before the signal cables
are connected. If possible, disconnect all power cables from the existing
system before you add a device.
•
Before connecting or removing signal cables from the motherboard,
ensure that all power cables are unplugged.
•
Seek professional assistance before using an adapter or extension cord.
These devices could interrupt the grounding circuit.
•
Make sure that your power supply is set to the correct voltage in your
area. If you are not sure about the voltage of the electrical outlet you
are using, contact your local power company.
•
If the power supply is broken, do not try to fix it by yourself. Contact a
qualified service technician or your retailer.
Operation safetyOperation safety
Operation safety
Operation safetyOperation safety
•
Before installing the motherboard and adding devices on it, carefully read
all the manuals that came with the package.
•
Before using the product, make sure all cables are correctly connected
and the power cables are not damaged. If you detect any damage,
contact your dealer immediately.
•
To avoid short circuits, keep paper clips, screws, and staples away from
connectors, slots, sockets and circuitry.
•
Avoid dust, humidity, and temperature extremes. Do not place the
product in any area where it may become wet.
•
Place the product on a stable surface.
•
If you encounter technical problems with the product, contact a qualified
service technician or your retailer.
viivii
vii
viivii
About this guide
This user guide contains the information you need when installing and
configuring the motherboard.
How this guide is organizedHow this guide is organized
How this guide is organized
How this guide is organizedHow this guide is organized
Dual-channel memory architecture
4 x 240-pin DIMM sockets support unbuffered ECC/
non-ECC 533/400 MHz DDR2 memory modules
Supports 256 MB up to 4 GB of system memory
1 x PCI-X
®
133 MHz*/64-bit slot (optional ZCR support,
PCI-X 1.0)
1 x PCI-X® 133 MHz/64-bit slot (PCI-X 1.0)
1 x PCI Express™ x1 slot (PCI Express™ 1.0a)
2 x PCI 33 MHz/32-bit/5V (PCI 2.3)
1 x MINI PCI® socket for the ASUS Server Management
ICH6R Southbridge supports:
4 x USB 2.0 ports (2 on the rear panel, 2 on the front
panel)
(continued on the next page)
•
For P5CR-L only: If one PCI-X slot is occupied, the frequency is
133 MHz. If two PCI-X slots are occupied, the frequency becomes
100 MHz.
•
For P5CR-LS only: If one PCI-X slot is occupied, the frequency is 100
MHz. If two PCI-X slots are occupied, the frequency becomes 66 MHz.
xx
x
xx
P5CR-L(S) specifications summary
Special featuresSpecial features
Special features
Special featuresSpecial features
BIOS featuresBIOS features
BIOS features
BIOS featuresBIOS features
Rear panelRear panel
Rear panel
Rear panelRear panel
InternalInternal
Internal
InternalInternal
connectorsconnectors
connectors
connectorsconnectors
ASUS Smart Fan
ASUS CrashFree BIOS 2
ASUS Multi-Language BIOS
ASUS MyLogo2™
ASUS EZ FLash
AMI BIOS, 8 MB FWH, Green, PnP, DMI2.0a, WfM2.0.,
ACPI 2.0A, SMBIOS 2.3
1 x PS/2 keyboard port
1 x PS/2 mouse port
2 x USB 2.0 ports
1 x Serial (COM1) port
2 x LAN (RJ-45) ports
1 x VGA port
1 x Parallel port
1 x Floppy disk drive connector
1x IDE connector
4 x Serial ATA connectors
1 x Ultra320 SCSI connector
2 x CPU fan connectors
4 x System fan connectors
1 x Hard disk activity LED connector
1 x USB connector
1 x 24-pin SSI power connector
1 x 4-pin ATX 12 V power connector
1 x Serial port (COM2) connector
1 x Backplane SMBus connector
1 x Power supply SMBus connector
1 x BMC connector
1 x System panel auxiliary connector
1 x System panel connector
1 x Ambient thermal sensor connector
(for P5CR-LS only)
PowerPower
Power
PowerPower
RequirementRequirement
Requirement
RequirementRequirement
Form FactorForm Factor
Form Factor
Form FactorForm Factor
Support CDSupport CD
Support CD
Support CDSupport CD
contentscontents
contents
contentscontents
*Specifications are subject to change without notice.
SSI power supply (with 24-pin and 4-pin 12 V plugs)
ATX 12V 2.0 compliant
ATX form factor: 12 in x 9.8 in (30.5 cm x 25 cm)
Device drivers
ASUS System Web-based Management (ASWM
ASUS Update
®
)
xixi
xi
xixi
xiixii
xii
xiixii
This chapter describes the motherboard
features and the new technologies
it supports.
The motherboard comes with a 775-pin surface mount Land Grid Array
(LGA) socket designed for the Intel® Pentium® 4 processor in the 775-land
package. The motherboard supports the Intel® Pentium® 4 processor with
800/533 MHz Front Side Bus (FSB). The motherboard also supports the
Intel® Hyper-Threading technology, is fully compatible with Intel
04A processors, and incorporates the Extended Memory 64-bit Technology
(EM64T). The EM64T enables support for 64-bit operating system, such
as 64-bit Windows® and Linux. See page 2-6 for details.
IntelIntel
Intel
IntelIntel
PCI/PCI-XPCI/PCI-X
PCI/PCI-X
PCI/PCI-XPCI/PCI-X
The Intel® E7221Memory Controller Hub (MCH), Intel
hub (ICH), and the Intel® 6702 PXH PCI/PCI-X bridge provide the vital
interfaces for the motherboard.
The MCH provides the processor, dual-channel DDR2 memory, and x8 PCI
Express interfaces. The integrated graphics engine supports standard SVGA
display. The ICH is a new generation server class I/O controller hub that
provides bridging functions for the PCI Express and PCI interface, and
supports the PCI Express hot-plug controller.
Product highlightsProduct highlights
Product highlights
Product highlightsProduct highlights
®
E7221/Intel E7221/Intel
E7221/Intel
E7221/Intel E7221/Intel
®
bridge bridge
bridge
bridge bridge
®
ICH6R chipset and Intel ICH6R chipset and Intel
ICH6R chipset and Intel
ICH6R chipset and Intel ICH6R chipset and Intel
®
04B and
®
6702 PXH 6702 PXH
6702 PXH
6702 PXH 6702 PXH
®
ICH6R I/O controller
Native DDR2-533 (PC2-4300) supportNative DDR2-533 (PC2-4300) support
Native DDR2-533 (PC2-4300) support
Native DDR2-533 (PC2-4300) supportNative DDR2-533 (PC2-4300) support
This motherboard offers native DDR2-533 (PC2-4300) memory support to
ensure superior system performance. With current processors supporting
800 MHz FSB, DDR2-533 provides the fastest solution for eliminating
system bottlenecks when running system-intensive applications.
Serial ATA technology Serial ATA technology
Serial ATA technology
Serial ATA technology Serial ATA technology
The motherboard supports the Serial ATA technology through the Serial ATA
interfaces controlled by the Intel® ICH6R. The SATA specification allows for
thinner, more flexible cables with lower pin count, reduced voltage
requirement, and up to 150 MB/s data transfer rate. See page 2-28 for
details.
The motherboard fully supports PCI Express, the latest I/O interconnect
technology that speeds up the PCI bus. PCI Express features point-to-point
serial interconnections between devices and allows higher clockspeeds by
carrying data in packets. This high speed interface is software compatible with
existing PCI or PCI-X specifications. See page 2-18 for details.
Gigabit LAN solution Gigabit LAN solution
Gigabit LAN solution
Gigabit LAN solution Gigabit LAN solution
The motherboard comes with onboard dual Gigabit LAN controllers to
provide a total solution for your networking needs. The onboard Broadcom
BCM5721 controllers use the PCI Express interface with a network
throughput close to Gigabit bandwidth. See pages 2-21, 2-22, and 2-25
for details.
Dual RAID solution Dual RAID solution
Dual RAID solution
Dual RAID solution Dual RAID solution
The Intel® ICH6R allows RAID 0 and RAID 1 configuration for four Serial ATA
connectors. See page 2-28 for details.
The optional Adaptec AIC-7901 PCI-X U320 SCSI controller (for P5CR-LS
model only) allows RAID 0, RAID 1, and RAID 0+1 configuration for Ultra
320 SCSI connectors. See page 2-29 for details.
Zero-Channel RAID (ZCR) solutionZero-Channel RAID (ZCR) solution
(optional for P5CR-LS model only)(optional for P5CR-LS model only)
(optional for P5CR-LS model only)
(optional for P5CR-LS model only)(optional for P5CR-LS model only)
The optional Adaptec AIC-7901 PCI-X U320 SCSI controller also supports
an optional Zero-Channel RAID card on the 64-bit PCI-X slot to create a
RAID solution, including RAID 0 (striping), RAID 1 (mirroring), RAID 0+1,
and RAID 5. The ZCR capability provides a cost-effective high-performance
and added reliability.
USB 2.0 technology USB 2.0 technology
USB 2.0 technology
USB 2.0 technology USB 2.0 technology
The motherboard implements the Universal Serial Bus (USB) 2.0
specification, dramatically increasing the connection speed from the
12 Mbps bandwidth on USB 1.1 to a fast 480 Mbps on USB 2.0. USB 2.0 is
backward compatible with USB 1.1. See pages 2-25 and 2-31 for details.
ASUS P5CR-L(S)ASUS P5CR-L(S)
ASUS P5CR-L(S)
ASUS P5CR-L(S)ASUS P5CR-L(S)
1-31-3
1-3
1-31-3
1.3.21.3.2
1.3.2
1.3.21.3.2
ASUS Smart Fan technology ASUS Smart Fan technology
ASUS Smart Fan technology
ASUS Smart Fan technology ASUS Smart Fan technology
The ASUS Smart Fan technology smartly adjusts the fan speeds according
to the system loading to ensure quiet, cool, and efficient operation. See
page 4-32 for details.
CrashFree BIOS 2 CrashFree BIOS 2
CrashFree BIOS 2
CrashFree BIOS 2 CrashFree BIOS 2
This feature allows you to restore the original BIOS data from the support CD
in case when the BIOS codes and data are corrupted. This protection
eliminates the need to buy a replacement ROM chip. See page 4-6 for details.
ASUS MyLogo2™ ASUS MyLogo2™
ASUS MyLogo2™
ASUS MyLogo2™ ASUS MyLogo2™
This feature allows you to personalize and add style to your system with
customizable boot logos. See page 4-34 for details.
Innovative ASUS featuresInnovative ASUS features
Innovative ASUS features
Innovative ASUS featuresInnovative ASUS features
ASUS EZ Flash BIOS ASUS EZ Flash BIOS
ASUS EZ Flash BIOS
ASUS EZ Flash BIOS ASUS EZ Flash BIOS
With the ASUS EZ Flash, you can easily update the system BIOS even
before loading the operating system. No need to use a DOS-based utility or
boot from a floppy disk. See page 4-2 for details.
ASUS UpdateASUS Update
ASUS Update
ASUS UpdateASUS Update
This utility allows you to update the motherboard BIOS through a
user-friendly interface. Connect to the Internet then to the ASUS FTP site
nearest you to obtain the latest BIOS version for your motherboard. See
page 4-8 for details.
This chapter lists the hardware setup
procedures that you have to perform
when installing system components.
It includes description of the jumpers
and connectors on the motherboard.
information
Hardware
2
Chapter summary
2
2.1Before you proceed .............................................................. 2-1
Take note of the following precautions before you install motherboard
components or change any motherboard settings.
•Unplug the power cord from the wall socket before touching any
component.
•Use a grounded wrist strap or touch a safely grounded object or a
metal object, such as the power supply case, before handling
components to avoid damaging them due to static electricity.
•Hold components by the edges to avoid touching the ICs on them.
•Whenever you uninstall any component, place it on a grounded
antistatic pad or in the bag that came with the component.
Before you install or remove any component, ensureBefore you install or remove any component, ensure
•
Before you install or remove any component, ensure
Before you install or remove any component, ensureBefore you install or remove any component, ensure
that the power supply is switched off or the powerthat the power supply is switched off or the power
that the power supply is switched off or the power
that the power supply is switched off or the powerthat the power supply is switched off or the power
cord is detached from the power supply. cord is detached from the power supply.
cord is detached from the power supply. Failure to do so
cord is detached from the power supply. cord is detached from the power supply.
may cause severe damage to the motherboard, peripherals, and/or
components.
Onboard LEDOnboard LED
Onboard LED
Onboard LEDOnboard LED
The motherboard comes with a standby power LED. The green LED lights
up to indicate that the system is ON, in sleep mode, or in soft-off mode.
This is a reminder that you should shut down the system and unplug the
power cable before removing or plugging in any motherboard component.
The illustration below shows the location of the onboard LED.
P5CR-LS
SB_PWR1
P5CR-L(S) Onboard LED
ON
Standby
Power
OFF
Powere
Off
ASUS P5CR-L(S)ASUS P5CR-L(S)
ASUS P5CR-L(S)
ASUS P5CR-L(S)ASUS P5CR-L(S)
2-12-1
2-1
2-12-1
®
2.2Motherboard overview
Before you install the motherboard, study the configuration of your chassis
to ensure that the motherboard fits into it. Refer to the chassis
documentation before installing the motherboard.
Make sure to unplug the chassis power cord before installing or removing
the motherboard. Failure to do so can cause you physical injury and
damage motherboard components.
2.2.12.2.1
2.2.1
2.2.12.2.1
Placement directionPlacement direction
Placement direction
Placement directionPlacement direction
When installing the motherboard, make sure that you place it into the
chassis in the correct orientation. The edge with external ports goes to the
rear part of the chassis as indicated in the image below.
2.2.22.2.2
2.2.2
2.2.22.2.2
Screw holesScrew holes
Screw holes
Screw holesScrew holes
Place nine (9) screws into the holes indicated by circles to secure the
motherboard to the chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
P5CR-LS
Place this side towardsPlace this side towards
Place this side towards
Place this side towardsPlace this side towards
the rear of the chassisthe rear of the chassis
the rear of the chassis
the rear of the chassisthe rear of the chassis
2-22-2
2-2
2-22-2
Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware information
Chapter 2: Hardware informationChapter 2: Hardware information
The Adaptec AIC-7901 U320 SCSI controller and RAID SCSI features are
for model P5CR-LS only. These components are grayed out in the above
motherboard layout.
ASUS P5CR-L(S)ASUS P5CR-L(S)
ASUS P5CR-L(S)
ASUS P5CR-L(S)ASUS P5CR-L(S)
2-32-3
2-3
2-32-3
2.2.42.2.4
2.2.4
2.2.42.2.4
Layout contentsLayout contents
Layout contents
Layout contentsLayout contents
SlotsSlots
Slots
SlotsSlots
1.CPU sockets2-6
2.DDR2 DIMM sockets2-13
3.PCI/PCI-X/PCI Express slots2-18
JumpersJumpers
Jumpers
JumpersJumpers
1.Clear RTC RAM (CLRTC1)2-19
2.CPU fan pin selection (3-pin FM_CPU1, FM_CPU2)2-20
3.USB device wake-up (3-pin USBPW12, USBPW34)2-20
4.Keyboard power (3-pin KBPWR1)2-21
5.Gigabit LAN controller setting (3-pin LAN_EN1)2-21
6.Gigabit LAN controller setting (3-pin LAN_EN2)2-22
15. System panel auxiliary connector (20-pin AUX_PANEL1)2-35
•
Chassis Intrusion connector (3-pin CASEOPEN)
•
LAN1 link activity LED (2-pin LAN1_LINKACTLED)
•
LAN2 link activity LED (2-pin LAN2_LINKACTLED)
•
Locator LED 1 (2-pin LOCATORLED1)
•
Locator LED 2 (2-pin LOCATORLED2)
•
Locator Button/Switch (2-pin LOCATORBTN)
•
Front Panel SMBus (6-1 pin)
16. System panel connector (20-pin PANEL1)2-36
•
System power LED (Green 3-pin POWERLED)
•
Hard disk drive activity LED (Red 2-pin HDLED)
•
System warning speaker (Orange 4-pin SPKROUT)
•
ATX power button/soft-off button (Yellow 2-pin POWERBTN)
•
Reset button (Blue 2-pin RESETBTN)
ASUS P5CR-L(S)ASUS P5CR-L(S)
ASUS P5CR-L(S)
ASUS P5CR-L(S)ASUS P5CR-L(S)
2-52-5
2-5
2-52-5
2.3Central Processing Unit (CPU)
®
The motherboard comes with a surface mount LGA775 socket designed for
the Intel® Pentium® 4 processor in the 775-land package.
•Your boxed Intel® Pentium® 4 LGA775 processor package should
come with installation instructions for the CPU and heatsink. If the
instructions in this section do not match the CPU documentation,
follow the latter.
•
Upon purchase of the motherboard, make sure that the PnP cap is
on the socket and the socket contacts are not bent. Contact your
retailer immediately if the PnP cap is missing, or if you see any
damage to the PnP cap/socket contacts/motherboard components.
ASUS will shoulder the cost of repair only if the damage is shipment/
transit-related.
•
Keep the cap after installing the motherboard. ASUS will process
Return Merchandise Authorization (RMA) requests only if the
motherboard comes with the cap on the LGA775 socket.
•The product warranty does not cover damage to the socket
contacts resulting from incorrect CPU installation/removal, or
misplacement/loss/incorrect removal of the PnP cap.
2.3.12.3.1
2.3.1
2.3.12.3.1
Installing the CPUInstalling the CPU
Installing the CPU
Installing the CPUInstalling the CPU
To install a CPU:
1.Locate the CPU socket on the motherboard.
P5CR-LS
P5CR-L(S) CPU Socket 775
Before installing the CPU, make sure that the socket box is facing
towards you and the load lever is on your left.
2-62-6
2-6
2-62-6
Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware information
Chapter 2: Hardware informationChapter 2: Hardware information
2.Press the load lever with your thumb (A), then move it to the left (B)
until it is released from the retention tab.
Retention tabRetention tab
Retention tab
Retention tabRetention tab
A
PnP capPnP cap
PnP cap
Load leverLoad lever
Load lever
Load leverLoad lever
PnP capPnP cap
To prevent damage to the socket pins, do not remove the PnP cap
unless you are installing a CPU.
3.Lift the load lever in the
direction of the arrow to a 135º
angle.
4.Lift the load plate with your
thumb and forefinger to a
100º angle (A), then push
the PnP cap from the load
plate window to remove (B).
B
This side of theThis side of the
This side of the
This side of theThis side of the
socket box shouldsocket box should
socket box should
socket box shouldsocket box should
face you.face you.
face you.
face you.face you.
B
A
5.Position the CPU over
the socket, making
sure that the gold
triangle is on the
bottom-left corner of
the socket. The
socket alignment key
should fit into the
CPU notch.
ASUS P5CR-L(S)ASUS P5CR-L(S)
ASUS P5CR-L(S)
ASUS P5CR-L(S)ASUS P5CR-L(S)
Load plateLoad plate
Load plate
Load plateLoad plate
Alignment keyAlignment key
Alignment key
Alignment keyAlignment key
Gold triangle markGold triangle mark
Gold triangle mark
Gold triangle markGold triangle mark
2-72-7
2-7
2-72-7
6.Close the load plate (A), then
push the load lever (B) until
it snaps into the retention
tab.
The CPU fits in only one correct orientation. DO NOT force the CPU into
the socket to prevent bending the connectors on the socket and
damaging the CPU!
A
B
Notes on IntelNotes on Intel
Notes on Intel
Notes on IntelNotes on Intel
•This motherboard supports Intel® Pentium® 4 CPUs in the 775-land
•Hyper-Threading Technology is supported under Windows
•Installing Windows
•Make sure to enable the Hyper-Threading Technology item in BIOS
•For more information on Hyper-Threading Technology, visit
XP/2003
Server and Linux 2.4.x (kernel) and later versions only. Under Linux,
use the Hyper-Threading compiler to compile the code. If you are
using any other operating systems, disable the Hyper-Threading
Technology item in the BIOS to ensure system stability and
performance.
®
2003 Server or later version is recommended.
before installing a supported operating system.
www.intel.com/info/hyperthreading.
To use the Hyper-Threading Technology on this motherboard:
®
1.Install an Intel
Pentium® 4 CPU that supports Hyper-Threading
Technology.
2.Power up the system and enter the BIOS Setup (see Chapter 4: BIOS
setup). Under the Advanced Menu, make sure that the item
Hyper-Threading Technology is set to Enabled. The item appears only
if you installed a CPU that supports Hyper-Threading Technology.
3.Reboot the computer.
2-82-8
2-8
2-82-8
Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware information
Chapter 2: Hardware informationChapter 2: Hardware information
2.3.22.3.2
2.3.2
2.3.22.3.2
Installing the CPU heatsink and fanInstalling the CPU heatsink and fan
Installing the CPU heatsink and fan
Installing the CPU heatsink and fanInstalling the CPU heatsink and fan
The Intel® Pentium® 4 LGA775 processor requires a specially designed
heatsink and fan assembly to ensure optimum thermal condition and
performance.
•
When you buy a boxed Intel® Pentium® 4 processor, the package
includes the CPU fan and heatsink assembly. If you buy a CPU
separately, make sure that you use only Intel
multi-directional heatsink and fan.
•
Your Intel® Pentium® 4 LGA775 heatsink and fan assembly comes in
a push-pin design and requires no tool to install.
•
If you purchased a separate CPU heatsink and fan assembly, make
sure that you have properly applied Thermal Interface Material to the
CPU heatsink or CPU before you install the heatsink and fan
assembly.
Make sure that you have installed the motherboard to the chassis before
you install the CPU fan and heatsink assembly.
®
-certified
To install the CPU heatsink and fan:
1.Place the heatsink on top of the
installed CPU, making sure that
the four fasteners match the
holes on the motherboard.
Orient the heatsink and fan
assembly such that the CPU
fan cable is closest to the
CPU fan connector.
Narrow endNarrow end
Narrow end
Narrow endNarrow end
of the grooveof the groove
of the groove
of the grooveof the groove
Motherboard holeMotherboard hole
Motherboard hole
Motherboard holeMotherboard hole
FastenerFastener
Fastener
FastenerFastener
Make sure to orient each fastener with the narrow end of the groove
pointing outward. (The photo shows the groove shaded for emphasis.)
ASUS P5CR-L(S)ASUS P5CR-L(S)
ASUS P5CR-L(S)
ASUS P5CR-L(S)ASUS P5CR-L(S)
2-92-9
2-9
2-92-9
2.Push down two fasteners at
®
2
1
a time in a diagonal
sequence to secure the
heatsink and fan assembly in
place.
B
A
B
A
A
B
B
A
3.Connect the CPU fan cable to the connector on the motherboard
labeled CPU_FAN1/CPU_FAN2.
CPU_FAN2
P5CR-LS
CPU_FAN1
CPU_FAN
FANOUT4
FANPWR2
GND
CPU_FAN
GND
FANPWR2
FANOUT4
P5CR-L(S) CPU fan connectors
•Do not forget to connect the CPU fan connector! Hardware
monitoring errors can occur if you fail to plug this connector.
•If there is only one CPU fan cable, connect it to the connector
labeled CPU_FAN1. Failure to do so may cause hardware monitoring
errors.
2-102-10
2-10
2-102-10
Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware information
Chapter 2: Hardware informationChapter 2: Hardware information
Loading...
+ 98 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.