Asus P8B75-M User Manual Page 1

MotherboardP8B75-M LX PLUS

x* Specications are subject to change without notice. P8B75-M LX PLUS specications summaryBIOS features 128 Mb Flash ROM, AMI BIOS, PnP, DMI2.0, Wf

xiPackage contentsCheck your motherboard package for the following items.ASUS P8B75-M LX PLUS motherboard 2 x Serial ATA 3.0 Gb/s cablesUser Manual1 x

xii

ASUS P8B75-M LX PLUS1-1Product introduction11.1 Special features1.1.1 Product highlightsLGA1155 socket for Intel® 3rd/2nd Generation Core™ i7 / Core

1-2Chapter 1: Product introduction1.1.2 ASUS Exclusive featuresNative SATA 6.0 Gb/s supportThe Intel® B75 Express Chipset natively supports next-gene

ASUS P8B75-M LX PLUS1-3USB 3.0 BoostWith USB 3.0 Boost technology, a USB device’s transmission speed is signicantly increased, adding to an already i

1-4Chapter 1: Product introductionNetwork iControlWith a one-click on/off button, the software currently in use is set as top priority over all other

ASUS P8B75-M LX PLUS1-51.2 Before you proceedTake note of the following precautions before you install motherboard components or change any motherboa

1-6Chapter 1: Product introductionP8B75-M LX PLUS1.3.2 Screw holesPlace six screws into the holes indicated by circles to secure the motherboard to t

ASUS P8B75-M LX PLUS1-71.3.3 Motherboard layoutP8B75-M LX PLUSPCIEX16_1PCIEX1_1PCIEX1_2PCI1AAFPEATXPWRCPU_FANCHA_FANLithium CellCMOS PowerSuperI/OALC

iiE7938First EditionDecember 2012Copyright © 2012 ASUSTeK COMPUTER INC. All Rights Reserved.No part of this manual, including the products and softwar

1-8Chapter 1: Product introduction1.3.4 Layout contentsConnectors/Jumpers/Slots/LED Page1. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_

ASUS P8B75-M LX PLUS1-9Unplug all power cables before installing the CPU.• Upon purchase of the motherboard, ensure that the PnP cap is on the socket

1-10Chapter 1: Product introduction1.4.1 Installing the CPUThe LGA1156 CPU is incompatible with the LGA1155 socket. DO NOT install a LGA1156 CPU on t

ASUS P8B75-M LX PLUS1-11ABC54

1-12Chapter 1: Product introduction1.4.2 CPU heatsink and fan assembly installationApply the Thermal Interface Material to the CPU heatsink and CPU b

ASUS P8B75-M LX PLUS1-13ABBATo uninstall the CPU heatsink and fan assembly21

1-14Chapter 1: Product introduction1.5 System memory1.5.1 OverviewThis motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Modul

ASUS P8B75-M LX PLUS1-15• The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of acces

1-16Chapter 1: Product introduction(continued on the next page)DDR3-2133 (O.C.) MHz capabilityVendors Part No. Size SS/DSChip BrandChip NO.Timing Volt

ASUS P8B75-M LX PLUS1-17(continued on the next page)Vendors Part No. Size SS/DSChip BrandChip NO. Timing VoltageDIMM socket support (optional)1DIMM 2D

iiiContentsSafety information ... viAbout this guide ...

1-18Chapter 1: Product introductionVendors Part No. Size SS/DSChip BrandChip NO. Timing Voltage DIMM socket support (optional)1DIMM 2DIMMsKINGMAX FLG

ASUS P8B75-M LX PLUS1-19SS: Single-sided / DS: Double-sidedDIMM support:• 1 DIMM: Supports one module inserted into either slot as single-channel me

1-20Chapter 1: Product introduction1.5.3 Installing a DIMMUnplug the power supply before adding or removing DIMMs or other system components. Failure

ASUS P8B75-M LX PLUS1-211.6 Expansion slotsIn the future, you may need to install expansion cards. The following sub-sections describe the slots and

1-22Chapter 1: Product introduction1.7 Jumpers Clear RTC RAM (3-pin CLRTC)This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You

ASUS P8B75-M LX PLUS1-23Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default position. Removing the cap will cause system bo

1-24Chapter 1: Product introductionRefer to the audio conguration table below for the function of the audio ports in 2, 4, 6, or 8-channel congurati

ASUS P8B75-M LX PLUS1-251.8.2 Internal connectors8. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible

1-26Chapter 1: Product introduction• We recommend that you use an ATX 12V Specication 2.0-compliant power supply unit (PSU) with a minimum of 300W po

ASUS P8B75-M LX PLUS1-273. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN) Connect the fan cables to the fan connectors on the motherb

ivContents1.9 Onboard LEDs ... 1-321.10 Software support ...

1-28Chapter 1: Product introduction4. System panel connector (10-1 pin PANEL)This connector supports several chassis-mounted functions.• System powe

ASUS P8B75-M LX PLUS1-296. 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 di

1-30Chapter 1: Product introduction7. Intel® B75 Serial ATA 6.0Gb/s connectors (7-pin SATA6G_1 [gray])These connectors connect to Serial ATA 6.0 Gb/s

ASUS P8B75-M LX PLUS1-319. USB 2.0 connectors (10-1 pin USB56, USB78)These connectors are for USB 2.0 ports. Connect the USB module cable to any of t

1-32Chapter 1: Product introduction1.9 Onboard LEDs1. Standby Power LEDThe motherboard comes with a standby power LED that lights up to indicate tha

ASUS P8B75-M LX PLUS1-331.10 Software support1.10.1 Installing an operating systemThis motherboard supports Windows® XP and Windows 7® Operating Sys

1-34Chapter 1: Product introductionIf Autorun is NOT enabled in your computer, browse the contents of the Support DVD to locate the le ASSETUP.EXE fr

ASUS P8B75-M LX PLUS2-12.1 Managing and updating your BIOSSave a copy of the original motherboard BIOS le to a USB ash disk in case you need to res

2-2Chapter 2: Getting startedUpdating from the Internet a. Select Update BIOS from the Internet, then click Next. b. Select the ASUS FTP site near

ASUS P8B75-M LX PLUS2-32.1.3 ASUS CrashFree BIOS 3 utilityThe ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS le

vContents2.6 Monitor menu ... 2-262.6.1 CPU Temperature / MB Temperature [

2-4Chapter 2: Getting started2.1.4 ASUS BIOS UpdaterThe ASUS BIOS Updater allows you to update BIOS in a DOS environment. This utility also allows yo

ASUS P8B75-M LX PLUS2-5Updating the BIOS leTo update the BIOS le using BIOS Updater:1. At the FreeDOS prompt, type bupdater /pc /g and press <En

2-6Chapter 2: Getting started2.2 BIOS setup programUse the BIOS Setup program to update the BIOS or congure its parameters. The BIOS screens include

ASUS P8B75-M LX PLUS2-7BIOS menu screenThe BIOS setup program can be used under two modes: EZ Mode and Advanced Mode. You can change modes from the Ex

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

ASUS P8B75-M LX PLUS2-9Menu itemsThe highlighted item on the menu bar displays the specic items for that menu. For example, selecting Main shows the

2-10Chapter 2: Getting started2.3 Main menuThe Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu pro

ASUS P8B75-M LX PLUS2-11Administrator PasswordIf you have set an administrator password, we recommend that you enter the administrator password for ac

2-12Chapter 2: Getting started2.4 Ai Tweaker menuThe Ai Tweaker menu items allow you to congure overclocking-related items.Be cautious when changing

ASUS P8B75-M LX PLUS2-132.4.3 DRAM Timing ControlThe subitems in this menu allow you to set the DRAM timing control features. Use the <+> and &

viSafety informationElectrical safetyTo prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the s

2-14Chapter 2: Getting startedDRAM READ to PRE Time [Auto]Conguration options: [Auto] [4 DRAM Clock] – [15 DRAM Clock]DRAM FOUR ACT WIN Time [Auto]Co

ASUS P8B75-M LX PLUS2-15tWW (DR) [Auto]Conguration options: [Auto] [0 DRAM Clock] – [7 DRAM Clock]tWWSR [Auto]Conguration options: [Auto] [0 DRAM Cl

2-16Chapter 2: Getting startedTurbo Mode [Enabled]Allows you to enable your core processor’s speed to run faster than the marked frequency in a speci

ASUS P8B75-M LX PLUS2-172.5 Advanced menuThe Advanced menu items allow you to change the settings for the CPU and other system devices.Be cautious wh

2-18Chapter 2: Getting started2.5.1 CPU CongurationThe items in this menu show the CPU-related information that the BIOS automatically detects.The i

ASUS P8B75-M LX PLUS2-19CPU Power Management CongurationThis item allows you to manage and congure the CPU’s power.CPU Ratio [Auto]Allows you to set

2-20Chapter 2: Getting startedIntel® Rapid Start Technology [Disabled]Allow you to enable or disable Intel® Rapid Start Technology.Conguration option

ASUS P8B75-M LX PLUS2-21S.M.A.R.T. Status Check [Enabled]S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a monitor system. When rea

2-22Chapter 2: Getting started2.5.5 AMT CongurationThe items in this menu allow you to change the Intel® Active Management Technology (AMT) feature.

ASUS P8B75-M LX PLUS2-232.5.6 USB CongurationThe items in this menu allow you to change the USB-related features.The USB Devices item shows the auto

viiWhere to nd more informationRefer to the following sources for additional information and for product and software updates.1. ASUS websitesThe AS

2-24Chapter 2: Getting started2.5.7 Onboard Devices CongurationHD Audio Controller [Enabled][Enabled] Enables the HD Audio Device.[Disabled] Disab

ASUS P8B75-M LX PLUS2-252.5.8 APMRestore AC Power Loss [Power Off][Power On] The system goes into on state after an AC power loss.[Power Off] The s

2-26Chapter 2: Getting started2.6 Monitor menuThe Monitor menu displays the system temperature/power status, and allows you to change the fan setting

ASUS P8B75-M LX PLUS2-272.6.3 CPU Q-Fan Control [Enabled][Disabled] Disables the CPU Q-Fan control feature.[Enabled] Enables the CPU Q-Fan control

2-28Chapter 2: Getting startedChassis Fan Speed Low Limit [600 RPM]This item appears only when you enable the Chassis Q-Fan Control feature and allows

ASUS P8B75-M LX PLUS2-292.7 Boot menuThe Boot menu items allow you to change the system boot options.2.7.1 Bootup NumLock State [On][On] Sets the p

2-30Chapter 2: Getting started2.7.3 Wait for ‘F1’ If Error [Enabled]When this item is set to [Enabled], the system waits for the F1 key to be pressed

ASUS P8B75-M LX PLUS2-312.8 Tools menuThe Tools menu items allow you to congure options for special functions. Select an item then press <Enter&g

2-32Chapter 2: Getting started2.9 Exit menuThe Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard y

P8B75-M LX PLUSA-1AppendicesNoticesFederal Communications Commission StatementThis device complies with Part 15 of the FCC Rules. Operation is subject

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

A-2AppendicesREACHComplying with the REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulatory framework, we published

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

A-4AppendicesDECLARATION OF CONFORMITYPer FCC Part 2 Section 2. 1077(a) Responsible Party Name: Asus Computer International Address: 800 Corpora

ixP8B75-M LX PLUS specications summaryASUS unique featuresASUS Exclusive Features: - ASUS GPU Boost - ASUS USB 3.0 Boost - ASUS Network iControl