Asus P8B-X User Manual

P8B-X

Motherboard

E6811

Second Edition V2

July 2011

Copyright © 2011 ASUSTeK COMPUTER INC. All Rights Reserved.

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 byASUS; 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.

ii

Contents

Contents.......................................................................................................	iii
Notices........................................................................................................	vii
Federal Communications Commission Statement............................	vii
Canadian Department of Communications Statement.....................	vii
REACH ...........................................................................................	vii
Safety information.....................................................................................	viii
Electrical safety................................................................................	viii
Operation safety..............................................................................	viii
About this guide..........................................................................................	ix
How this guide is organized...............................................................	ix
Where to find more information.........................................................	ix
Conventions used in this guide...........................................................	x
Typography.........................................................................................	x
P8B-X specifications summary..................................................................	xi

Chapter 1:		Product introduction
1.1	Welcome!.......................................................................................		1-3
1.2	Package contents.........................................................................		1-3
1.3	Serial number label.......................................................................		1-4
1.4	Special features............................................................................		1-4
	1.4.1	Product highlights............................................................	1-4
	1.4.2	Innovative ASUS features................................................	1-6

Chapter 2:		Hardware information
2.1	Before you proceed......................................................................		2-3
2.2	Motherboard overview.................................................................		2-5
	2.2.1	Placement direction.........................................................	2-5
	2.2.2	Screw holes.....................................................................	2-5
	2.2.3	Motherboard layout..........................................................	2-6
	2.2.4	Layout contents...............................................................	2-8
2.3	Central Processing Unit (CPU)..................................................		2-10
	2.3.1	Installing the CPU..........................................................	2-10
	2.3.2	Installing the CPU heatsink and fan..............................	2-13
	2.3.3	Uninstalling the CPU heatsink and fan..........................	2-14

iii

Contents

	2.3.4	Installing the CPU heatsink in rack ................................	2-15
2.4	System memory..........................................................................		2-16
	2.4.1	Overview ........................................................................	2-16
	2.4.2	Memory Configurations .................................................	2-16
	2.4.3	Installing a DIMM ...........................................................	2-17
	2.4.4	Removing a DIMM .........................................................	2-17
2.5	Expansion slots..........................................................................		2-18
	2.5.1	Installing an expansion card ..........................................	2-18
	2.5.2	Configuring an expansion card ......................................	2-18
	2.5.3	Interrupt assignments ....................................................	2-19
	2.5.4	PCI Express x8 slot (x4 link) ..........................................	2-20
	2.5.5	PCI Express x16 slot (x16 link) ......................................	2-20
	2.5.6	PCI Express x1 slots (x1 link) ........................................	2-20
	2.5.7	PCI slots . .......................................................................	2-20
	2.5.8	Connecting the thermal sensor cable ............................	2-21
2.6	Jumpers	.......................................................................................	2-22
2.7	Connectors..................................................................................		2-26
	2.7.1 ..................................................	Rear panel connectors	2-26
	2.7.2 ........................................................	Internal connectors	2-27

Chapter 3:		Powering up
3.1	Starting up for the first time........................................................		3-3
3.2	Powering off the computer..........................................................		3-4
	3.2.1	Using the OS shut down function....................................	3-4
	3.2.2	Using the dual function power switch..............................	3-4

Chapter 4:		BIOS setup
4.1	Managing and updating your BIOS.............................................		4-3
	4.1.1	ASUS CrashFree BIOS 3 utility.......................................	4-3
	4.1.2	ASUS EZ Flash Utility......................................................	4-4
	4.1.3	BUPDATER utility............................................................	4-5
4.2	BIOS setup program.....................................................................		4-7
	4.2.1	BIOS menu screen..........................................................	4-8
	4.2.2	Menu bar.........................................................................	4-8
	4.2.3	Menu items......................................................................	4-9

iv

Contents

	4.2.4	Submenu items................................................................	4-9
	4.2.5	Navigation keys...............................................................	4-9
	4.2.6	General help....................................................................	4-9
	4.2.7	Configuration fields..........................................................	4-9
	4.2.8	Pop-up window................................................................	4-9
	4.2.9	Scroll bar.........................................................................	4-9
4.3	Main menu...................................................................................		4-10
	4.3.1	System Date [Day xx/xx/xxxx].......................................	4-10
	4.3.2	System Time [xx:xx:xx]..................................................	4-10
	4.3.3	Security..........................................................................	4-10
4.4	Event Logs menu........................................................................		4-12
4.5	Advanced menu..........................................................................		4-14
	4.5.1	ACPI Settings................................................................	4-14
	4.5.2	Trusted Computing........................................................	4-15
	4.5.3	WHEAConfiguration......................................................	4-15
	4.5.4	CPU Configuration.........................................................	4-16
	4.5.5	North Bridge..................................................................	4-18
	4.5.6	South Bridge..................................................................	4-18
	4.5.7	SATAConfiguration........................................................	4-19
	4.5.8	Intel TXT(LT) Configuration...........................................	4-20
	4.5.9	USB Configuration.........................................................	4-20
	4.5.10	Onboard Devices Configuration....................................	4-21
	4.5.11	APM...............................................................................	4-23
	4.5.12	Serial Port Console Redirection....................................	4-24
4.6	Monitor menu..............................................................................		4-26
4.7	Boot menu...................................................................................		4-27
4.8	Tool menu....................................................................................		4-29
4.9	Exit menu.....................................................................................		4-29

Chapter 5:		RAID configuration
5.1	Setting up RAID............................................................................		5-3
	5.1.1	RAID definitions...............................................................	5-3
	5.1.2	Installing hard disk drives................................................	5-4
	5.1.3	Setting the RAID item in BIOS.........................................	5-4

Contents

	5.1.4	RAID configuration utilities..............................................	5-4
5.2	Intel® Rapid Storage Technology Option ROM Utilitys..............		5-5
	5.2.1	Creating a RAID set.........................................................	5-6
	5.2.2	Creating a Recovery set..................................................	5-7
	5.2.3	Deleting a RAID set.........................................................	5-9
	5.2.4	Resetting disks to Non-RAID.........................................	5-10
	5.2.5	Recovery Volume Options..............................................	5-11
	5.2.6	Exiting the Intel® Rapid Storage Technology utility........	5-12
	5.2.7	Rebuilding the RAID......................................................	5-12
	5.2.8	Setting the Boot array in the BIOS Setup Utility............	5-14

Chapter 6:		Driver installation
Chapter summary......................................................................................			6-2
6.1	RAID driver installation................................................................		6-3
	6.1.1	Creating a RAID driver disk.............................................	6-3
	6.1.2	Installing the RAID controller driver.................................	6-6
6.2	Intel® chipset device software installation.................................		6-9
6.3	LAN driver installation...............................................................		6-11
6.4	VGA driver installation...............................................................		6-14
	6.4.1 XGI Volari Z9s VGA Driver (R1.0x)......................................		6-14
	6.4.2 ASPEED AST1100 VGA Driver (R2.0x)...............................		6-16
6.5	Management applications and utilities installation.................		6-18
	6.5.1	Running the support DVD..............................................	6-18
	6.5.2	Drivers menu.................................................................	6-18
	6.5.3	Utilities menu.................................................................	6-19
	6.5.4	Make disk menu............................................................	6-19
	6.5.5	Contact information.......................................................	6-19

Appendix:		Reference information
A.1	P8B-X block diagram (R1.0x).......................................................		A-3
A.2	P8B-X block diagram (R2.0x).......................................................		A-4
ASUS contact information...........................................................................			1

vi

Notices

Federal 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 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.

REACH

Complying with the REACH (Registration, Evaluation,Authorization, and Restriction of Chemicals) regulatory framework, we publish the chemical substances in our products at ASUS REACH website at http://csr.asus.com/english/REACH.htm.

vii

Safety information

Electrical 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 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.

DO NOT throw the motherboard in municipal waste. This product has been designed to enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin indicates that the product (electrical and electronic equipment) should not be placed in municipal waste. Check local regulations for disposal of electronic products.

DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol of the crossed out wheeled bin indicates that the battery should not be placed in municipal waste.

viii

About this guide

This user guide contains the information you need when installing and configuring the motherboard.

How this guide is organized

This user guide contains the following parts:

•Chapter 1: Product introduction

This chapter describes the features of the motherboard and the new technologies it supports.

•Chapter 2: Hardware information

This chapter lists the hardware setup procedures that you have to perform when installing system components. It includes description of the switches, jumpers, and connectors on the motherboard.

•Chapter 3: Powering up

This chapter describes the power up sequence and ways of shutting down the system.

•Chapter 4: BIOS setup

This chapter tells how to change system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided.

•Chapter 5: RAID configuration

This chapter provides instructions for setting up, creating, and configuring

RAID sets using the available utilities.

•Chapter 6: Driver installation

This chapter provides instructions for installing the necessary drivers for different system components.

•Appendix: Reference information

This appendix includes additional information that you may refer to when configuring the motherboard.

Where to find more information

Refer to the following sources for additional information and for product and software updates.

1.ASUS websites

The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information.

2.Optional documentation

Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer. These documents are not part of the standard package.

ix

Conventions used in this guide

To make sure that you perform certain tasks properly, take note of the following symbols used throughout this manual.

DANGER/WARNING: Information to prevent injury to yourself when trying to complete a task.

CAUTION: Information to prevent damage to the components when trying to complete a task.

IMPORTANT: Instructions that you MUST follow to complete a task.

NOTE: Tips and additional information to help you complete a task.

Typography

Bold text		Indicates a menu or an item to select.
Italics	Used to emphasize a word or a phrase.
<Key>		Keys enclosed in the less-than and greater-
		than sign means that you must press the
		enclosed key.
		Example: <Enter> means that you must press
		the Enter or Return key.
<Key1+Key2+Key3>		If you must press two or more keys
		simultaneously, the key names are linked with
		a plus sign (+).
		Example: <Ctrl+Alt+Del>
Command		Means that you must type the command
		exactly as shown, then supply the required
		item or value enclosed in brackets.

Example: At the DOS prompt, type the command line: format A:/S

P8B-X specifications summary

Processor Support / System Bus

Core Logic

Form Factor

ASUS Features	Fan Speed
	Control
	Rack Ready
	(Rack and
	Pedestal dual
	use)
	ASWM 2.0
Memory	Total Slots
	Capacity
	Memory Type
Expansion	Total PCI/PCI-X/
Slots	PCI-E Slots
(follow SSI	Slot Location 1
Location #)	Slot Location 2
	Slot Location 3
	Slot Location 4
	Slot Location 5
	Slot Location 6
Storage	SATA Controller
Networking	LAN
Graphic	VGA
	TPM Header
Onboard I/O
Connectors	PSU Connector
	USB
	Connectors
	Fan Header
	Chassis
	Intruder
	Serial Port
	Header

1 x Socket LGA1155

Intel® Xeon® E3-1200 Processor Family Intel® Core™ i3-2100 Processor Family

Intel® C202 Chipset ATX, 12” x 9.6”

V

V

V

4 (2 Channels) Maximum up to 32GB

DDR3 1066/1333 ECC UDIMM 6

1 x PCI 32bit/33 MHz

1 x PCI 32bit/33 MHz

1 x PCI-E x8 (Gen 2 x4 link) 1 x PCI-E x1 (Gen 2 x1 link) 1 x PCI-E x1 (Gen 2 x1 link)

1 x PCI-E x16 (Gen 2 x16 link)

Intel® C202:

6 SATA 3Gb/s ports (RAID supported)

- Intel® Rapid Storage Technology(RST) supports software RAID 0, 1, 10 & 5(Windows)

2 x Intel 82574L

XGI® Z9s + 64MB VRAM (R1.0x) ASPEED® AST1100 + 64MB VRAM (R2.0x)

1

24-pin ATX power connector + 8-pin ATX 12V power connector

1 * USB connector (Type A USB socket)

2 * USB pin header (up to 4 devices)

5 x 4pin

1

1

(continued on the next page)

xi

P8B-X specifications summary

Rear I/O	External Serial	1
Connectors	Port
	External USB	2
	Port
	VGA Port	1
	RJ-45	2
	PS/2 KB/Mouse	1
Monitoring	CPU	V
	Temperature
Environment	FAN RPM	V
		Operation temperature: 10°C – 35°C
		Non operation temperature: -40°C – 70°C
		Non operation humidity: 20% – 90%
		(Non condensing)

*Specifications are subject to change without notice.

xii

This chapter describes the motherboard		1
features and the new technologies it supports.
		Product
	introduction

Chapter summary	1

1.1	Welcome!.......................................................................................	1-3
1.2	Package contents.........................................................................	1-3
1.3	Serial number label.......................................................................	1-4
1.4	Special features............................................................................	1-4

ASUS P8B-X

1.1Welcome!

Thank you for buying an ASUS® P8B-X motherboard!

The motherboard delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards!

Before you start installing the motherboard, and hardware devices on it, check the items in your package with the list below.

1.2Package contents

Check your motherboard package for the following items.

			Standard Gift Box		Standard Bulk Pack
			Pack
Cables	SATA 3G cable
			6		--
Accessories	IO shield		1		1
	Plate for LGA1155		1		1
Application CD	Support CD
			1		1
Documentation	User Guide		1		1
Packing Qty.			1pc per carton		10pcs per carton

If any of the above items is damaged or missing, contact your retailer.

ASUS P8B-X

1-3

1.3Serial number label

Before requesting support from the ASUS Technical Support team, you must take note of the motherboard's serial number containing 12 characters xxS2xxxxxxxx shown as the figure below. With the correct serial number of the product,ASUS

Technical Support team members can then offer a quicker and satisfying solution to your problems.

P8B-X	Made
	in
	China
xxS2xxxxxxxx

1.4Special features

1.4.1Product highlights

Latest processor technology

This motherboard supports the latest Intel® Xeon® E3-1200/Core™ i3-2100 processors in LGA1155 package, which has memory and PCI Express controller integrated to support 2-channel (4 DIMMs) DDR3 memory and 16 PCI Express 2.0 lanes, providing great graphics performance. Intel® Xeon® E3-1200/Core™ i3-2100 processor is one of the most powerful and energy efficient CPU in the world.

Intel Dynamic Turbo Boost Techonology

Intel® Dynamic Turbo Boost Technology opportunistically and automatically allows the processor to run faster than the marked frequency if the processor is operating below power, temperature and current limits. This technology increases performance of both multi-threaded and single-threaded workloads.

Intel Hyper Threading

The thread-level parallelism on each processor makes more efficient use of the processor resources, higher processing throughout and improved performance on today's multi-threaded software.

Intel® EM64T

The motherboard supports Intel® processors with the Intel® EM64T (Extended Memory 64 Technology). The Intel® EM64T feature allows your computer to run on 64-bit operating systems and access larger amounts of system memory for faster and more efficient computing.

1-4	Chapter 1: Product introduction

DDR3 memory support

The P8B-X supports UDIMM DDR3 memory that features data transfer rates of 1333/1066 MHZ to meet the higher bandwidth requirements of server and workstation applications. The 2-channel DDR3 architecture boosts system performance, eliminating bottlenecks with peak bandwidth of up to 21GB/s.

Furthermore, the supply voltage for the memory is reduced from 1.8 V for DDR2 to just 1.5V for DDR3. This voltage reduction limits the power consumption and heat generation of DDR3 which makes it an ideal memory solution.

PCIe 2.0

This motherboard supports the latest PCIe 2.0 device for twice the current speed and bandwidth. This enhances system performance while still providing backward compatibility to PCIe 1.0 devices.

Intel® 82574L LAN Solution

The motherboard comes with dual Gigabit LAN controllers and ports which provide a total solution for your networking needs. The onboard Intel® 82574L Gigabit LAN controllers use the PCI Express interface and could achieve network throughput close to Gigabit bandwidth.

Enhanced Intel SpeedStep Technology (EIST)

The Enhanced Intel SpeedStep Technology (EIST) intelligently manages the CPU resources by automatically adjusting the CPU voltage and core frequency depending on the CPU loading and system speed or power requirement.

Serial ATA II technology

The motherboard supports the Serial ATA II 3 Gb/s technology through the Serial ATA interface and Intel® C202 chipset. The SerialATAII specification provides twice the bandwidth of the current Serial ATA products with a host of new features, including Native Command Queuing (NCQ), Power Management (PM)

ImplementationAlgorithm, and Hot Swap. SerialATAallows thinner, more flexible cables with lower pin count and reduced voltage requirements.

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.

ASUS P8B-X

1-5

Temperature, fan, and voltage monitoring

The CPU temperature is monitored to prevent overheating and damage. The system fan rotations per minute (RPM) is monitored for timely failure detection. The chip monitors the voltage levels to ensure stable supply of current for critical components.

1.4.2Innovative ASUS features

ASUS Fan Speed technology

The ASUS Fan Speed technology smartly adjusts the fan speeds according to the system loading to ensure quiet, cool, and efficient operation.

1-6	Chapter 1: Product introduction

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.

Chapter 2:

Hardware2 information

Chapter summary	2

2.1	Before you proceed......................................................................	2-3
2.2	Motherboard overview.................................................................	2-5
2.3	Central Processing Unit (CPU)..................................................	2-10
2.4	System memory..........................................................................	2-16
2.5	Expansion slots..........................................................................	2-18
2.6	Jumpers.......................................................................................	2-22
2.7	Connectors..................................................................................	2-26

ASUS P8B-X

2.1Before you proceed

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, ensure that the power 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.

ASUS P8B-X

2-3

Onboard LEDs

1.Standby Power LED (SB_PWR1)

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.

2-4

Chapter 2: Hardware information

2.2Motherboard overview

Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits into it.

To optimize the motherboard features, we highly recommend that you install it in an

ATX 1.1 compliant chassis.

Ensure 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!

2.2.1Placement direction

When installing the motherboard, ensure 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.

2.2.2Screw 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.

Place this side towards the rear of the chassis

ASUS P8B-X

2-5

2.2.3Motherboard layout

P8B-X/ R1.0x

2-6

Chapter 2: Hardware information

P8B-X/ R2.0x

ASUS P8B-X

2-7

2.2.4Layout contents

	Slots/Soocket		Page
1.		CPU sockets	2-10
2.		DDR3 sockets	2-16
	3.	PCI Express x16 / PCI Express x8 / PCI Express x1 / PCI slots	2-20
	Jumpers		Page

1.Clear RTC RAM (CLRTC1)

2.VGA controller setting (3-pin VGA_SW1)

3.CPU Fan and Chassis Fan control setting (3-pin CPUFAN_SEL1, CHAFAN_SEL1)

4.LAN controller setting (3-pin LAN_SW1, LAN_SW2)

5.Force BIOS recovery setting (3-pin RECOVERY1)

2-22

2-23

2-24

2-24

2-25

	Rear panel connectors		Page
1.		PS/2 mouse port (green)	2-26
2.		PS/2 keyboard port (purple)	2-26
3.		USB 2.0 ports 1 and 2	2-26
4.		Serial (COM1) port	2-26
5.		Video Graphics Adapter port	2-26
	6.	LAN 1 (RJ-45) port	2-26
	9.	LAN 2 (RJ-45) port	2-26

2-8	Chapter 2: Hardware information

Internal connectors

Page

1.	Serial ATA connectors	2-27
	(7-pin SATA1, SATA2, SATA3, SATA4, SATA5, SATA6)
2.	Hard disk activity LED connector (4-pin HDLED1)	2-28
3.	USB connector (10-1 pin USB34, USB56;A-Type USB7)	2-29
4.	Thermal sensor cable connectors (3-pin TR1)	2-29
5.	CPU, front and rear fan connectors	2-30
	(4-pin CPU_FAN1, FRNT_FAN1, FRNT_FAN2, FRNT_FAN3,
	REAR_FAN1)
6.	Serial General Purpose Input/Output connector (6-1 pin SGPIO1)	2-31
7.	Serial port connectors (10-1 pin COM2)	2-31
8.	TPM connector (20-1-pin TPM)	2-32
9.	ATX power connectors (24-pin EATXPWR1, 8-pin EATX12V1)	2-33
10.	System panel connector (20-1 pin PANEL1)	2-34
11.	Auxiliary panel connector (20-2 pin AUX_PANEL1)	2-35

ASUS P8B-X

2-9

2.3Central Processing Unit (CPU)

The motherboard comes with a surface mount LGA1155 socket designed for the Intel® Xeon E3-1200/Core™ i3-2100 processor.

• Upon purchase of the motherboard, ensure 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

MerchandiseAuthorization (RMA) requests only if the motherboard comes with the cap on the LGA1155 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.

2.3.1Installing the CPU

To install a CPU:

1.Locate the CPU socket on the motherboard.

Before installing the CPU, ensure that the socket box is facing toward you and the load lever is on your left.

2.Press the load lever with your thumb (A), and then move it to the right (B) until it is released from the retention tab.

To prevent damage to the socket pins, do not remove the PnP cap unless you are installing a CPU.

Load lever

B

Retention tab

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3.Lift the load lever in the direction of the arrow until the load plate is completely lifted.

4.Remove the PnP cap from the CPU socket by lifting the tab only.

PnP cap

Cap tab

5.Position the CPU over the socket, ensuring that the gold triangle is on the bottom left corner of the socket, and then fit the socket alignment keys into the CPU notches.

CPU notches

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!

Gold

triangle

mark

Alignment keys

ASUS P8B-X

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6.Apply some Thermal Interface Material to the exposed area of the CPU that the heatsink will be in contact with, ensuring that it is spread in an even thin layer.

Some heatsinks come with preapplied thermal paste. If so, skip this step.

The Thermal Interface Material is toxic and inedible. DO NOT eat it. If it gets into your eyes or touches your skin, wash it off immediately, and seek professional medical help.

7. Close the load plate (A), and then	B
push down the load lever (B),
ensuring that the front edge of the
load plate slides under the retention
knob (C).	A

8.Insert the load lever under the retention tab.

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