Asus P8B75-M LX/TW User Manual

MotherboardP8B75-M LX

x* Specications are subject to change without notice. BIOS features 128 Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0a, Multi-l

ASUS P8B75-M LX 1-1Chapter 1Product introduction Motherboard ASUS P8B75-M LX motherboardCables 1 x Serial ATA 6.0Gb/s cable 1 x Serial ATA 3.0

1-2 Chapter 1: Product introductionIntel® B75 Express ChipsetThe Intel® B75 Express Chipset is the latest single-chipset designed to support the 1155

ASUS P8B75-M LX 1-31.3.2 Innovative ASUS featuresASUS UEFI BIOSFlexible and Easy BIOS Interface ASUS UEFI BIOS offers the rst mouse-controlled graph

1-4 Chapter 1: Product introductionUSB 3.0 BoostWith USB 3.0 Boost technology, a USB device’s transmission speed is signicantly increased, adding to

ASUS P8B75-M LX 1-51.4 Before you proceedTake note of the following precautions before you install motherboard components or change any motherboard s

1-6 Chapter 1: Product introductionP8B75-M LX1.5 Motherboard overviewBefore you install the motherboard, study the conguration of your chassis to en

ASUS P8B75-M LX 1-71.5.3 Motherboard layout1.5.4 Layout contentsConnectors/Jumpers/Slots/LED Page Connectors/Jumpers/Slots/LED Page1. CPU and chass

1-8 Chapter 1: Product introduction1.6 Central Processing Unit (CPU)The motherboard comes with a surface mount LGA1155 socket designed for the Intel®

ASUS P8B75-M LX 1-91.6.1 Installing the CPU123The LGA1156 CPU is incompatible with the LGA1155 socket. DO NOT install a LGA1156 CPU on the LGA1155 so

iiE7741Second Edition (V2) August 2012Copyright © 2012 ASUSTeK COMPUTER INC. All Rights Reserved.No part of this manual, including the products and so

1-10 Chapter 1: Product introductionABC54

ASUS P8B75-M LX 1-111.6.2 CPU heatsink and fan assembly installationApply the Thermal Interface Material to the CPU heatsink and CPU before you insta

1-12 Chapter 1: Product introductionABBATo uninstall the CPU heatsink and fan assembly21

ASUS P8B75-M LX 1-13P8B75-M LXP8B75-M LX 240-pin DDR3 DIMM socketsDIMM_A1DIMM_B11.7 System memory1.7.1 OverviewThe motherboard comes with four Doubl

1-14 Chapter 1: Product introductionP8B75-M LX Motherboard Qualied Vendors Lists (QVL) DDR3-2400 MHz capabilityVendors Part No. SizeSS/DSChip BrandCh

ASUS P8B75-M LX 1-15Vendors Part No. Size SS/DSChip BrandChip NO.Timing VoltageDIMM socket support (Optional)1 DIMM 2 DIMMsApacer 78.AAGD5.9KD(XMP) 6G

1-16 Chapter 1: Product introductionDDR3-1600 MHz capabilityVendors Part No. SizeSS/DSChip BrandChip NO. Timing VoltageDIMM socket support (Optional)1

ASUS P8B75-M LX 1-17(continued on the next page)DDR3-1333 MHz capabilityVendors Part No. SizeSS/DSChip Brand Chip NO. Timing VoltageDIMM socket suppor

1-18 Chapter 1: Product introductionVendors Part No. SizeSS/DSChip Brand Chip NO. Timing VoltageDIMM socket support (Optional)1 DIMM 2 DIMMsKINGSTON K

ASUS P8B75-M LX 1-19DDR3-1066 MHz capabilitySide(s): SS - Single-sided DS - Double-sided DIMM support:• 1 DIMM: Supports one (1) module inserted

iiiContentsSafety information ... viAbout this guide ...

1-20 Chapter 1: Product introduction1.7.3 Installing a DIMMUnplug the power supply before adding or removing DIMMs or other system components. Failur

ASUS P8B75-M LX 1-211.8 Expansion slotsIn the future, you may need to install expansion cards. The following sub-sections describe the slots and the

1-22 Chapter 1: Product introductionIRQ assignments for this motherboardA B C D E F G HIntel PCH SATA controller #0 – – – shared – – – –Intel PCH SATA

ASUS P8B75-M LX 1-231.10 Connectors1.10.1 Rear panel connectors1. PS/2 Mouse port (green). This port is for a PS/2 mouse.2. LAN (RJ-45) port. This

1-24 Chapter 1: Product introduction6. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0/1

ASUS P8B75-M LX 1-251.10.2 Internal connectors1. Front panel audio connector (10-1 pin AAFP)This connector is for a chassis-mounted front panel audi

1-26 Chapter 1: Product introduction• For a fully congured system, we recommend that you use a power supply unit (PSU) that complies with ATX 12 V S

ASUS P8B75-M LX 1-27Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside the system may damage the motherboard co

1-28 Chapter 1: Product introduction7. System panel connector (10-1 pin F_PANEL)This connector supports several chassis-mounted functions.• System p

ASUS P8B75-M LX 1-299. Intel® B75 Serial ATA 3.0Gb/s connectors (7-pin SATA3G_1~5 [blue])These connectors connect to Serial ATA 3.0 Gb/s hard disk dr

ivContents1.13 Software support ... 1-321.13.1 Installing an operating system .

1-30 Chapter 1: Product introduction11. USB 3.0 connector (20-1 pin USB3_34)This connector is for the additional USB 3.0 ports. Connect the USB 3.0 b

ASUS P8B75-M LX 1-3113. Chassis intrusion connector (4-1 pin CHASSIS)This connector is for a chassis-mounted intrusion detection sensor or switch. Co

1-32 Chapter 1: Product introduction1.13 Software support1.13.1 Installing an operating systemThis motherboard supports Windows® XP / Vista / 7 Oper

ASUS P8B75-M LX 1-331.13.3 Intel® SBA supportIntel® SBA (Small Business Advantage) is a combination of hardware and software that provides unique sec

1-34 Chapter 1: Product introduction

2-1ASUS P8B75-M LXChapter 2BIOS informationSave a copy of the original motherboard BIOS le to a USB ash disk in case you need to restore the BIOS in

Chapter 2: BIOS information2-22.1.2 ASUS EZ Flash 2The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based utility. Befor

2-3ASUS P8B75-M LX• This function supports USB ash disks with FAT 32/16 format and single partition only.• DO NOT shut down or reset the system whi

Chapter 2: BIOS information2-4Welcome to FreeDOS (http://www.freedos.org)!C:\>d:D:\>3. When the Make Disk menu appears, select the FreeDOS com

2-5ASUS P8B75-M LXUpdating the BIOS leTo update the BIOS le using BIOS Updater1. At the FreeDOS prompt, type bupdater /pc /g and press <Enter>

vContents2.6.1 CPU Temperature / MB Temperature [xxxºC/xxxºF] ... 2-232.6.2 CPU / Chassis Fan Speed [xxxx RPM] or [Ignore] / [N/A] 2-232.6.3 CP

Chapter 2: BIOS information2-6Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to force reset from a running ope

2-7ASUS P8B75-M LXEZ ModeBy default, the EZ Mode screen appears when you enter the BIOS setup program. The EZ Mode provides you an overview of the bas

Chapter 2: BIOS information2-8Advanced ModeThe Advanced Mode provides advanced options for experienced end-users to congure the BIOS settings. The g

2-9ASUS P8B75-M LXPop-up windowSelect a menu item and press <Enter> to display a pop-up window with the conguration options for that item.Scrol

Chapter 2: BIOS information2-102.3.1 System Language [English]Allows you to choose the BIOS language version from the options. Conguration options:

2-11ASUS P8B75-M LXAdministrator PasswordIf you have set an administrator password, we recommend that you enter the administrator password for accessi

Chapter 2: BIOS information2-122.4 Ai Tweaker menuThe Ai Tweaker menu items allow you to congure overclocking-related items.Be cautious when changin

2-13ASUS P8B75-M LX2.4.3 Memory Frequency [Auto]Allows you to set the memory operating frequency. The conguration options vary with the CPU bus spee

Chapter 2: BIOS information2-14Long Duration Power Limit [Auto]Allows you to limit the turbo ratio’s long duration power. Use the <+> and <-&

2-15ASUS P8B75-M LXBe cautious when changing the settings of the Advanced menu items. Incorrect eld values can cause the system to malfunction.2.5 A

viSafety informationElectrical safety• To prevent electric shock hazard, disconnect the power cable from the electric outlet before relocating the sy

Chapter 2: BIOS information2-16Execute Disable Bit [Enabled][Enabled] Enables the No-Execution Page Protection Technology.[Disabled] Forces the XD f

2-17ASUS P8B75-M LXIntel® Rapid Start Technology [Disabled]Allows you to enable or disable the Intel(R) Rapid Start Technology. Conguration options:

Chapter 2: BIOS information2-182.5.4 System Agent CongurationMemory Remap Feature [Enabled][Enabled] Allow you to enable remapping the memory above

2-19ASUS P8B75-M LXWatchDog [Disabled]When set to [Enabled], the WatchDog Timer will monitor the time taken for each task performed by a software or h

Chapter 2: BIOS information2-202.5.7 Onboard Devices CongurationHD Audio Controller [Enabled][Enabled] Enables the High Denition Audio Controller.

2-21ASUS P8B75-M LX2.5.8 APMRestore AC Power Loss [Power Off][Power On] The system goes into on state after an AC power loss.[Power Off] The system

Chapter 2: BIOS information2-222.6 Monitor menuThe Monitor menu displays the system temperature/power status, and allows you to change the fan settin

2-23ASUS P8B75-M LX2.6.1 CPU Temperature / MB Temperature [xxx�C/xxx�F][xxx�C/xxx�F]The onboard hardware monitor automatically detects and displays t

Chapter 2: BIOS information2-242.6.4 Chassis Q-Fan Control [Enabled][Disabled] Disables the Chassis Q-Fan control feature.[Enabled] Enables the Cha

2-25ASUS P8B75-M LX2.7 Boot menuThe Boot menu items allow you to change the system boot options.2.7.1 Bootup NumLock State [On][On] Sets the power-

viiConventions used in this guideTo ensure that you perform certain tasks properly, take note of the following symbols used throughout this manual.

Chapter 2: BIOS information2-262.7.4 Option ROM Messages [Force BIOS][Force BIOS] The third-party ROM messages will be forced to display during the

2-27ASUS P8B75-M LX2.8 Tools menuThe Tools menu items allow you to congure options for special functions. Select an item then press <Enter> to

Chapter 2: BIOS information2-282.9 Exit menuThe Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard

ASUS P8B75-M LX A-1AppendicesFederal Communications Commission StatementThis device complies with Part 15 of the FCC Rules. Operation is subject to th

A-2 AppendicesVCCI: Japan Compliance StatementVCCI Class B StatementKC: Korea Warning StatementCanadian Department of Communications StatementThis dig

ASUS P8B75-M LX A-3ASUS contact informationASUSTeK COMPUTER INC.Address 15 Li-Te Road, Peitou, Taipei, Taiwan 11259Telephone +886-2-2894-3447Fa

A-4 AppendicesEC Declaration of Conformity We, the undersigned, Manufacturer: ASUSTek COMPUTER INC. Address, City: No. 150, LI-TE RD., PEITOU, TAIPEI

viiiP8B75-M LX specications summary(continued on the next page)CPU LGA1155 socket for Intel® 2nd / 3rd Generation Core™ i7 / Core™ i5 / Core™ i3

ixP8B75-M LX specications summaryASUS unique features ASUS Exclusive Features: - ASUS GPU Boost - ASUS USB 3.0 Boost - LucidLogix® Virtu MVP