Asus CS-B User Manual

CS-B

Motherboard

E8441
First Edition V1

July 2013

Copyright © 2013 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, modied or altered, unless
such repair, modication 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
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Products and corporate names appearing in this manual may or may not be registered trademarks or

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owners’ benet, without intent to infringe.

Offer to Provide Source Code of Certain Software

This product contains copyrighted software that is licensed under the General Public License (“GPL”),
under the Lesser General Public License Version (“LGPL”) and/or other Free Open Source Software
Licenses. Such software in this product is distributed without any warranty to the extent permitted by the
applicable law. Copies of these licenses are included in this product.

Where the applicable license entitles you to the source code of such software and/or other additional data,
you may obtain it for a period of three years after our last shipment of the product, either

(1) for free by downloading it from http://support.asus.com/download
or
(2) for the cost of reproduction and shipment, which is dependent on the preferred carrier and the location

where you want to have it shipped to, by sending a request to:

ASUSTeK Computer Inc.
Legal Compliance Dept.
15 Li Te Rd.,
Beitou, Taipei 112
Taiwan

In your request please provide the name, model number and version, as stated in the About Box of the
product for which you wish to obtain the corresponding source code and your contact details so that we
can coordinate the terms and cost of shipment with you.

The source code will be distributed WITHOUT ANY WARRANTY and licensed under the same license as
the corresponding binary/object code.

This offer is valid to anyone in receipt of this information.
ASUSTeK is eager to duly provide complete source code as required under various Free Open Source

Software licenses. If however you encounter any problems in obtaining the full corresponding source
code we would be much obliged if you give us a notication to the email address [e-mail], stating
the product and describing the problem (please DO NOT send large attachments such as source code
archives, etc. to this email address).

ii

Contents

Safety information ...................................................................................... iv

About this guide ......................................................................................... iv

Package contents ....................................................................................... vi

CS-B specications summary ................................................................... vi

Chapter 1: Product introduction

1.1 Before you proceed ..................................................................... 1-1

1.2 Motherboard overview .................................................................

1.3 Central Processing Unit (CPU) ...................................................

1.4 System memory ...........................................................................

1.5 Expansion slots ............................................................................

1.6 Jumpers ......................................................................................

1.7 Connectors .................................................................................

1.8 Onboard LEDs ............................................................................

1.9 Software support ........................................................................

Chapter 2: BIOS information

2.1 Managing and updating your BIOS ............................................ 2-1

2.2 BIOS setup program ....................................................................

2.3 My Favorites .................................................................................

2.4 Main menu ..................................................................................

2.5 Ai Tweaker menu ........................................................................

2.6 Advanced menu .........................................................................

2.7 Monitor menu .............................................................................

2.8 Boot menu ..................................................................................

2.9 Tools menu .................................................................................

2.10 Exit menu ....................................................................................

1-1

1-3

1-7

1-9

1-10

1-11

1-19

1-20

2-5

2-9

2-10

2-12

2-22

2-33

2-35

2-41

2-42

Appendices

Notices .......................................................................................................A-1

ASUS contact information .......................................................................A-3

iii

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.

Ensure 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 x it by yourself. Contact a qualied service

•
technician or your retailer.

Operation safety

Before installing the motherboard and adding components, carefully read all the manuals

•
that came with the package.

Before using the product, ensure 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 be exposed to moisture.

Place the product on a stable surface.

•

If you encounter technical problems with the product, contact a qualied service

•
technician or your retailer.

About this guide

This user guide contains the information you need when installing and conguring the

motherboard.

How this guide is organized

This guide contains the following parts:

• Chapter 1: Product introduction

This chapter describes the features of the motherboard and the new technology it
supports. It includes descriptions of the switches, jumpers, and connectors on the
motherboard.

• Chapter 2: BIOS information

This chapter discusses changing system settings through the BIOS Setup menus.
Detailed descriptions fo the BIOS parameters are also provided.

iv

Where to nd 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 yers,

that may have been added by your dealer. These documents are not part of the
standard package.

Conventions used in this guide

To ensure 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
completing a task.

CAUTION: Information to prevent damage to the components when
completing 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

<Key> Keys enclosed in the less-than and greater-than sign

<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key

Used to emphasize a word or a phrase.

means that you must press the enclosed key.

Example: <Enter> means that you must press the Enter or
Return key.

names are linked with a plus sign (+).

v

Package contents

Check your motherboard package for the following items.

Motherboard ASUS CS-B motherboard

Cables 2 x Serial ATA 6.0 Gb/s cables

Accessories 1 x I/O Shield

Application DVD Support DVD

Documentation User Guide

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

CS-B specications summary

CPU LGA1150 socket for Intel® 4th Generation Core™ i7 / i5 / i3, Pentium®, and

Celeron® processors

* Refer to www.asus.com for Intel® CPU support list.

Chipset Intel® Q87 Express Chipset

Memory 4 x DIMMs, max. 32GB, DDR3 1600 / 1333 / 1066 MHz, non-ECC, un-

buffered memory

Dual-channel memory architecture

* Intel® 4th generation supports DDR3 1600 and higher memory frequency.
** Refer to www.asus.com for the latest Memory QVL (Qualied Vendors List).
** When you install a total memory of 4GB capacity or more, Windows® 32-bit

operating system may only recognize less than 3GB. We recommend a
maximum of 3GB system memory if you are using a Windows® 32-bit operating
system.

Graphics Integrated Graphics Processor

Multi-VGA output support: DisplayPort, DVI-D, and DVI-I ports

- Supports DisplayPort with max. resolution of 4096 x 2160@24Hz /
3840 x 2160 @60Hz

- Supports DVI-D with max.resolution of 1920 x 1200 @60Hz

- Supports DVI-I with max. resolution of 1920 x 1200 @60Hz

Maximum shared memory of 1024 MB

Expansion slots 1 x PCI Express 3.0/2.0 x16 slot

1 x PCI Express 2.0 x16 slot (x4 mode)

1 x PCI Express 2.0 x1 slot

1 x PCI slot

1 x mini PCIe (Full length, supports full/half mini card)*

* mini PCIe shares the same slot with mSATA. When a mini PCIe card is installed,

mSATA will not be usable.

(continued on the next page)

vi

CS-B specications summary

Storage Intel® Q87 Express Chipset:

LAN Intel® I217LM Gigabit LAN controller

Audio 8-channel Realtek® ALC887-VD High Denition Audio CODEC

USB 4 x USB 3.0 ports (2 ports at midboard, 2 ports at back panel)

ASUS unique features

- 5 x Serial ATA 6.0 Gb/s connectors

- 1 x mSATA connector*

* mSATA shares the same slot with mini PCIe. When mSATA card is inserted,

mini PCIe will not be usable.

Realtek RTL8111G-CG Gigabit LAN controller

- Supports Jack-Detection, Multi-streaming, Anti-pop Function, Front
Panel Retasking

* Use a chassis with HD audio module in the front panel to support an 8-

channel audio output.

8 x USB 2.0 ports (4 ports at midboard, 4 ports at back panel)

Bespoke Motherboard Design & Commercial Focused
Features:

- Layout Design: Maximized microATX layout for better thermal
performance

-

ASUS Watchdog Timer AP: Your system will always run, non-stop

-

Total ESD Guard: Strongest electrostatic protection for maximum
lifespan

-

Stainless Steel Back I/O: Three times more corrosion resistance.

-

Overcurrent Protection: Short circuit prevention, protects your
system.

ASUS Exclusive Features:

- ASUS UEFI BIOS (EZ Mode)

ASUS Quiet Thermal Solution:

- ASUS Fan Xpert 2

ASUS EZ DIY:

- ASUS CrashFree BIOS 3

- ASUS EZ Flash 2

- ASUS MyLogo 2™

- ASUS Q-DIMM

- ASUS Q-SLOT

100% Solid Capacitors

TUF Components

- TUF 10K Ti-Cap

- TUF Alloy Chokes

- TUF MOSFETS

(continued on the next page)

vii

CS-B specications summary

Rear panel I/O ports 1 x PS/2 keyboard port (purple)

1 x PS/2 mouse port (green)

1 x DVI-I port

1 x DVI-D port

1 x DisplayPort port

2 x LAN (RJ-45) ports

4 x USB 2.0/1.1 ports

2 x USB 3.0 ports

3 x Audio jacks

Internal connectors/
switches/ buttons

BIOS features 128 Mb Flash ROM, AMI BIOS, PnP, DMI v2.0, WfM2.0, SM BIOS v2.5,

Manageability

Support DVD Drivers

Form factor

1 x USB 3.0 connector supports additional 2 USB 3.0 ports

2 x USB 2.0 connectors support additional 4 USB 2.0 ports

5 x SATA 6.0 Gb/s connectors

1 x mSATA connector

1 x Chassis intrusion connector

1 x Clear CMOS jumper

1 x 4-pin CPU fan connector

2 x 4-pin Chassis fan connectors (with DC)

1 x Front panel audio connector (AAFP)

1 x System panel connector

1 x Speaker connector

1 x LPT header

2 x COM Headers

1 x 24-pin ATX power connector

1 x 8-pin ATX 12V power connector

1 x DIS ME jumper

TPM IC onboard

ACPI v2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree
BIOS 3

WfM 2.0, DMI 2.0WOL by PME, WOR by PME, PXE

ASUS utilities

ASUS Update

Anti-virus software (OEM version)

MicroATX form factor: 9.6”x 9.6” (24.4cm x 24.4cm)

viii

Specications are subject to change without notice.

Product introduction

1

1.1 Before 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.

• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, 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 ATX 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, or components.

1.2 Motherboard overview

Before you install the motherboard, study the conguration of your chassis to ensure that the
motherboard ts.

Unplug the power cord before installing or removing the motherboard. Failure to do so can
cause you physical injury and damage to motherboard components.

1.2.1 Placement direction

When installing the motherboard, 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.

1.2.2 Screw holes

Place eight 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.

ASUS CS-B

1-1

CS-B

Place this side

CS-B

PCIEX16_1

PCIEX16_2

PCIEX1_1

ASM
1083

PCI1

RTL

8111G

Intel
I217LM

ASM
1442

ASM
1442

USB1112

USB910

AAFP

EATXPWR

CPU_FAN

BATTERY

Super

I/O

ALC

887VD

KBMS

16Mb
BIOS

SB_PWR

MSATA_MPCIE

CLRTC

CHASSIS

DIS_ME

SPEAKER

F_PANEL

21.8cm(8.6in)

DDR3 DIMM_A1 (64bit, 240-pin module)

DDR3 DIMM_A2 (64bit, 240-pin module)

DDR3 DIMM_B1 (64bit, 240-pin module)

DDR3 DIMM_B2 (64bit, 240-pin module)

AUDIO

LAN1_USB34

LAN2_USB78

USB3_56

CHA_FAN1

CHA_FAN2

24.4cm(9.6in)

LGA1150

DIGI

+VRM

DP

DUAL_DVI-I/D

COM2 COM1

EATX12V

USB3_12

SATA6G_5 SATA6G_4

SATA6G_1

SATA6G_3

SATA6G_2

Intel

®

Q87

LPT

21 3 141

101213 5 9111416 15

2

5

6

7

8

5

towards the rear

of the chassis

1.2.3 Motherboard layout

1-2

Chapter 1: Product introduction

1.2.4 Layout contents

CS-B CPU socket LGA1150

CS-B

Connectors/Jumpers/Slots/LED Page

1. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1/2) 1-16

2. ATX power connectors (24-pin EATXPWR, 8-pin ATX12V) 1-14

3. Intel® LGA1150 CPU socket 1-3

4. DDR3 DIMM slots 1-7

5. Intel® Q87 Serial ATA 6.0Gb/s connector (7-pin SATA6G_1~5 [brown]) 1-16

6. USB 3.0 connector (20-1 pin USB3_12) 1-17

7. Onboard LED (SB_PWR) 1-19

8. Speaker connector (4-pin SPEAKER) 1-14

9. System panel connector (10-1 pin F_PANEL) 1-18

10. Intel® ME jumper (3-pin DIS_ME) 1-11

11. Clear RTC RAM (3-pin CLRTC) 1-10

12. USB 2.0 connectors (10-1 pin USB910, USB1112) 1-17

13. Serial port connectors (10-1 pin COM1, COM2) 1-13

14. LPT connector (26-1 pin LPT) 1-18

15. Chassis intrusion connector (4-1 pin CHASSIS) 1-15

16. Front panel audio connector (10-1 pin AAFP) 1-15

1.3 Central Processing Unit (CPU)

This motherboard comes with a surface mount LGA1150 socket designed for the Intel 4th
generation Core™ i7 / Core™ i5 / Core™ i3, Pentium® , and Celeron® processors.

ASUS CS-B

1-3

A

B

Unplug all power cables before installing the CPU.

• 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 Merchandise

Authorization (RMA) requests only if the motherboard comes with the cap on the

LGA1150 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.

1.3.1 Installing the CPU

1

1-4

2

3

Chapter 1: Product introduction

A

B

C

4

5

1.3.2 CPU heatsink and fan assembly installation

Apply the Thermal Interface Material
to the CPU heatsink and CPU
before you install the heatsink and
fan if necessary.

ASUS CS-B

1-5

To install the CPU heatsink and fan assembly

1

B

A

B

A

3 4

2

To uninstall the CPU heatsink and fan assembly

1

1-6

2

B

A

B

A

Chapter 1: Product introduction

1.4 System memory

CS-B 240-pin DDR3 DIMM sockets

DIMM_A1

DIMM_A2

DIMM_B1

DIMM_B2

CS-B

1.4.1 Overview

This motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Module
(DIMM) sockets. A DDR3 module has the same physical dimensions as a DDR2 DIMM but
is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are

developed for better performance with less power consumption. The gure illustrates the

location of the DDR3 DIMM sockets:

Channel Sockets

Channel A DIMM_A1 & DIMM_A2

Channel B DIMM_B1 & DIMM_B2

1.4.2 Memory congurations

You may install 1GB, 2GB, 4GB, and 8GB unbuffered non-ECC DDR3 DIMMs into the DIMM
sockets.

• You may install varying memory sizes in Channel A and Channel B. The system maps
the total size of the lower-sized channel for the dual-channel conguration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.

• Always install DIMMs with the same CAS latency. For optimal compatibility, we
recommend that you install memory modules of the same version or date code (D/C)
from the same vendor. Check with the retailer to get the correct memory modules.

• Due to the memory address limitation on 32-bit Windows
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you do any of the
following:

- Use a maximum of 3GB system memory if you are using a 32-bit Windows

- Install a 64-bit Windows

®

OS if you want to install 4GB or more on the

motherboard.

• This motherboard does not support DIMMs made up of 512 megabits (Mb) chips or
less.

• Memory modules with memory frequency higher than 2133 MHz and its corresponding
timing or the loaded X.M.P. Prole is not the JEDEC memory standard. The stability

and compatibility of these memory modules depend on the CPU’s capabilities and
other installed devices.

• The maximum 32GB memory capacity can be supported with 8GB or above DIMMs.
ASUS will update the memory QVL once the DIMMs are available in the market.

®

OS, when you install 4GB

®

OS.

ASUS CS-B

1-7

• The default memory operation frequency is dependent on its Serial Presence Detect
(SPD), which is the standard way of accessing information from a memory module.
Under the default state, some memory modules for overclocking may operate at a
lower frequency than the vendor-marked value. To operate at the vendor-marked
or at a higher frequency, refer to section 2.5 Ai Tweaker menu for manual memory
frequency adjustment.

• For system stability, use a more efcient memory cooling system to support a full

memory load (4 DIMMs) or overclocking condition.

• Visit the ASUS website at:

1.4.3 Installing a DIMM

Unplug the power supply before adding or removing DIMMs or other system components.
Failure to do so can cause severe damage to both the motherboard and the components.

www.asus.com for the latest QVL.

1. Press the retaining clips outward
to unlock a DIMM socket.

DIMM notch

2. Align a DIMM on the socket
such that the notch on the DIMM
matches the DIMM slot key on the
socket.

DIMM slot key

A DIMM is keyed with a notch so that it ts in only one direction. DO NOT force a DIMM into

a socket in the wrong direction to avoid damaging the DIMM.

3. Firmly insert the DIMM into the socket
until the retaining clips snap back
in place and the DIMM is properly
seated.

Locked Retaining Clip

1.4.4 Removing a DIMM

To remove a DIMM:

1. Simultaneously press the retaining clips outward to unlock the DIMM.

2

1

Unlocked
retaining clip

3

1-8

Chapter 1: Product introduction

Support the DIMM lightly with

your ngers when pressing the

retaining clips. The DIMM might

get damaged when it ips out

with extra force.

2

1

2. Remove the DIMM from the socket.

DIMM notch

1.5 Expansion slots

In the future, you may need to install expansion cards. The following sub-sections describe
the slots and the expansion cards that they support.

Unplug the power cord before adding or removing expansion cards. Failure to do so may
cause you physical injury and damage motherboard components.

1.5.1 Installing an expansion card

To install an expansion card:

1. Before installing the expansion card, read the documentation that came with it and
make the necessary hardware settings for the card.

2. Remove the system unit cover (if your motherboard is already installed in a chassis).

3. Remove the bracket opposite the slot that you intend to use. Keep the screw for later
use.

4. Align the card connector with the slot and press rmly until the card is completely

seated on the slot.

5. Secure the card to the chassis with the screw you removed earlier.

6. Replace the system cover.

1.5.2 Conguring an expansion card

After installing the expansion card, congure it by adjusting the software settings.

1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for
information on BIOS setup.

2. Assign an IRQ to the card.

3. Install the software drivers for the expansion card.

ASUS CS-B

When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that

the cards do not need IRQ assignments. Otherwise, conicts will arise between the two PCI

groups, making the system unstable and the card inoperable.

1-9

1.5.3 PCI slot

CS-B

CS-B Clear RTC RAM

1 2 2 3

Normal

(Default)

Clear RTC

CLRTC

The PCI slot supports LAN cards, SCSI cards, USB cards, and other cards that comply with

PCI specications.

1.5.4 PCI Express 3.0/2.0 x16 slots

This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that

comply with the PCI Express specications.

IRQ assignments for this motherboard

A B C D E F G H

Intel PCH SATA controller #0

Intel PCH SATA controller #1
Realtek 8111G controller

– – – shared – – – –

– – – shared – – – –
– – shared – – – – –

1.6 Jumpers

1. Clear RTC RAM (3-pin CLRTC)

This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can
clear the CMOS memory of system setup parameters by erasing the CMOS RTC RAM
data. The onboard button cell battery powers the RAM data in CMOS, which include
system setup information such as system passwords.

To erase the RTC RAM:

1. Turn OFF the computer and unplug the power cord.

2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3

3. Plug the power cord and turn ON the computer.

4. Hold down the <

1-10

for about 5-10 seconds, then move the cap back to pins 1-2.

Del> key during the boot process and enter BIOS setup to re-

enter data.

Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!

Chapter 1: Product introduction

• If the steps above do not help, remove the onboard battery and move the jumper

2 2 3

Normal

(Default)

Disable ME

DIS_ME

1

CS-B Intel®ME jumper

CS-B

6

7

8

1

12 10 9

4

911

2

3

5

again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the
battery.

• You do not need to clear the RTC when the system hangs due to overclocking. For
system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature.
Shut down and reboot the system, then the BIOS automatically resets parameter
settings to default values.

2. Intel® ME jumper (3-pin DIS_ME)

This jumper allows you to enable or disable the Intel® ME function. Set this jumper to
pins 1-2 to enable (default) the Intel® ME function and to pins 2-3 to disable it.

Disable the Intel® ME function before updating it.

1.7 Connectors

1.7.1 Rear panel connectors

1. PS/2 mouse port (green). This port is for a PS/2 mouse.

2. DVI-D port.

output RGB Signal to CRT and is not compatible with DVI-I.

3. DisplayPort.

ASUS CS-B

This port is for any DVI-D compatible device. DVI-D can’t be converted to

This port is for DisplayPort-compatible devices.

1-11

4. LAN (RJ-45) port.

This port allows Gigabit connection to a Local Area Network (LAN)

through a network hub.

5. LAN (RJ-45) port.

This port allows Gigabit connection to a Local Area Network (LAN)

through a network hub. This port supports Intel® AMT.

LAN port LED indications

Activity/Link LED Speed LED
Status Description Status Description

Activity Link

LED

Speed

Off No link OFF 10Mbps connection
Orange Linked ORANGE 100Mbps connection
Orange (Blinking) Data activity GREEN 1Gbps connection
Orange (Blinking

then steady)

Ready to wake
up from S5 mode

LAN port

6. Line In port (light blue). This port connects to the tape, CD, DVD player, or other

audio sources.

7. Line Out port (lime).

This port connects to a headphone or a speaker. In the 4.1, 5.1,

and 7.1-channel congurations, the function of this port becomes Front Speaker Out.

8. Microphone port (pink)

Refer to the audio conguration table for the function of the audio ports in 2.1, 4.1, 5.1, or

7.1-channel conguration.

. This port connects to a microphone.

Audio 2.1, 4.1, 5.1, or 7.1-channel conguration

Port

Light Blue (Rear panel) Line In Rear Speaker Out Rear Speaker Out Rear Speaker Out
Lime (Rear panel) Line Out Front Speaker Out Front Speaker Out Front Speaker Out
Pink (Rear panel) Mic In Mic In Bass/Center Bass/Center
Lime (Front panel) - - - Side Speaker Out

Headset

2.1-

channel

4.1-channel 5.1-channel 7.1-channel

LED

To congure a 7.1-channel audio output:

Use a chassis with HD audio module in the front panel to support a 7.1-channel audio

output.

9. USB 2.0 ports. These two 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1

devices.

10. USB 3.0 ports

. These two 9-pin Universal Serial Bus (USB) ports are for USB 3.0

devices.

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Chapter 1: Product introduction

• Due to USB 3.0 controller limitations, USB 3.0 devices can only be used under a

CS-B Serial port connectors

PIN 1

COM2

DCD

TXD

GND

RTS

RI

RXD

DTR

DSR

CTS

PIN 1

COM1

DCD

TXD

GND

RTS

RI

RXD

DTR

DSR

CTS

CS-B

Windows® OS environment and after USB 3.0 driver installation.

• The plugged USB 3.0 device may run on xHCI or EHCI mode, depending on the
operating system’s setting.

• USB 3.0 devices can only be used for data storage.

• We strongly recommend that you connect USB 3.0 devices to USB 3.0 ports for faster
and better performance from your USB 3.0 devices.

• Due to the design of the Intel

®

8 series chipset, all USB devices connected to the

USB 2.0 and USB 3.0 ports are controlled by the xHCI controller. Some legacy USB

devices must update their rmware for better compatibility.

11. DVI-I port. This port is for any DVI-I compatible device and are HDCP compliant,

allowing playback of HD DVD, Blu-Ray and other protected content.

12. PS/2 keyboard port (purple).

This port is for a PS/2 keyboard.

1.7.2 Internal connectors

1. Serial port connector (10-1 pin COM1, COM2)

This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.

The COM module is purchased separately.

ASUS CS-B

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2. ATX power connectors (24-pin EATXPWR, 8-pin ATX12V)

CS-B ATX power connectors

EATXPWR

PIN 1

GND
+5 Volts
+5 Volts
+5 Volts

-5 Volts
GND
GND
GND
PSON#
GND

-12 Volts
+3 Volts

+3 Volts
+12 Volts
+12 Volts

+5V Standby

Power OK

GND

+5 Volts

GND

+5 Volts

GND
+3 Volts
+3 Volts

EATX12V

PIN 1

+12V DC

+12V DC

+12V DC

+12V DC

GND

GND

GND

GND

CS-B

CS-B Speaker Out connector

+5V

GND

GND

Speaker Out

SPEAKER

PIN 1

CS-B

These connectors are for ATX power supply plugs. The power supply plugs are

designed to t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.

•

We recommend that you use an ATX 12V Specication 2.0-compliant power supply

unit (PSU) with a minimum of 300W power rating. This PSU type has 24-pin and 4-pin
power plugs.

•

DO NOT forget to connect the 4-pin/8-pin ATX +12V power plug. Otherwise, the
system will not boot up.

• We recommend that you use a PSU with higher power output when conguring a

system with more power-consuming devices or when you intend to install additional
devices. The system may become unstable or may not boot up if the power is
inadequate.

•

If you are uncertain about the minimum power supply requirement for your system,
refer to the Recommended Power Supply Wattage Calculator at http://support.asus.
com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.

3. Speaker connector (4-pin SPEAKER)

The 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you hear system beeps and warnings.

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Chapter 1: Product introduction

4. Front panel audio connector (10-1 pin AAFP)

CS-B

CS-B Front panel audio connector

AAFP

AGNDNCSENSE1_RETUR

SENSE2_RETUR

PORT1 L

PORT1 R

PORT2 R

SENSE_SEND

PORT2 L

HD-audio-compliant

pin definition

PIN 1

AGNDNCNC

NC

MIC2

MICPWR

Line out_R

NC

Line out_L

Legacy AC’97

compliant definition

CS-B Chassis intrusion connector

PIN 1

+5VSB_MB

Chassis Signal

GND

CHASSIS

CS-B

This connector is for a chassis-mounted front panel audio I/O module that supports
either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel
audio I/O module cable to this connector.

• We recommend that you connect a high-denition front panel audio module to this
connector to avail of the motherboard’s high-denition audio capability.

• If you want to connect a high-denition front panel audio module to this connector,

set the Front Panel Type item in the BIOS setup to [HD]. If you want to connect an
AC’97 front panel audio module to this connector, set the item to [AC97]. By default,
this connector is set to [HD]. See section 2.6.10 Onboard Devices Conguration for
details.

5. Chassis intrusion connector (4-1 pin CHASSIS)

This connector is for a chassis-mounted intrusion detection sensor or switch. Connect
one end of the chassis intrusion sensor or switch cable to this connector. The chassis
intrusion sensor or switch sends a high-level signal to this connector when a chassis
component is removed or replaced. The signal is then generated as a chassis intrusion
event.

By default, the pin labeled “Chassis Signal” and “Ground” are shorted with a jumper
cap. Remove the jumper caps only when you intend to use the chassis intrusion
detection feature.

ASUS CS-B

1-15

6. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1/2)

CHA_FAN2

GND
CHA FAN PWR
CHA FAN IN
+5V

CHA_FAN1

GND
CHA FAN PWR
CHA FAN IN
+5V

CPU_FAN

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

CS-B Fan connectors

CS-B

SATA6G_1

GND

RSATA_RXP1

RSATA_RXN1

GND

RSATA_TXN1

RSATA_TXP1

GND

SATA6G_2

GND

RSATA_RXP2

RSATA_RXN2

GND

RSATA_TXN2

RSATA_TXP2

GND

CS-B SATA 6.0Gb/s connectors

GND

RSATA_TXP3

RSATA_TXN3

GND

RSATA_RXN3

RSATA_RXP3

GND

SATA6G_3

SATA6G_5

GND
RSATA_TXP5
RSATA_TXN5

GND
RSATA_RXN5
RSATA_RXP5

GND

SATA6G_4

GND
RSATA_TXP4
RSATA_TXN4

GND
RSATA_RXN4
RSATA_RXP4

GND

CS-B

Connect the fan cables to the fan connectors on the motherboard, ensuring that the
black wire of each cable matches the ground pin of the connector.

Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside

the system may damage the motherboard components. These are not jumpers! Do not
place jumper caps on the fan connectors! The CPU_FAN connector supports a CPU fan of
maximum 1A (12 W) fan power.

Only the 4-pin CPU fan supports the ASUS Fan Xpert 2 feature.

7. Intel® Q87 Serial ATA 6.0Gb/s connector (7-pin SATA6G_1~5 [brown])

This connector connects to Serial ATA 6.0 Gb/s hard disk drives via Serial ATA 6.0 Gb/s
signal cables.

When using hot-plug and NCQ, set the SATA Mode Selection item in the BIOS to [AHCI].
See section 2.6.4 SATA Conguration for details.

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Chapter 1: Product introduction