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Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing.
Contents Safety information ..................vi About this guide ..................vi P8B75-M LX specifications summary ............. viii Chapter 1 Product introduction Welcome! ..................1-1 Package contents ................. 1-1 Special features ................1-1 1.3.1 Product highlights ............1-1 1.3.2 Innovative ASUS features ..........1-3 Before you proceed ..............
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Managing and updating your BIOS ..........2-1 2.1.1 ASUS Update utility ............2-1 2.1.2 ASUS EZ Flash 2 ............2-2 2.1.3 ASUS CrashFree BIOS 3 utility ........2-3 2.1.4 ASUS BIOS Updater ............2-4 BIOS setup program ..............2-6 Main menu .................. 2-10 2.3.1 System Language [English] ..........
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2.7.8 Boot Option Priorities ............ 2-27 2.7.9 Boot Override ..............2-27 Tools menu ................. 2-28 2.8.1 ASUS EZ Flash 2 Utility ..........2-28 2.8.2 ASUS O.C. Profile ............2-28 2.8.3 ASUS SPD Information ..........2-28 Exit menu ..................2-29 Appendices Notices .......................A-1...
Safety information Electrical safety • To prevent electric shock hazard, disconnect the power cable from the electric 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.
Refer to the following sources for additional information and for product and software updates. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. Optional documentation Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer.
Dual-channel memory architecture 1600MHz and higher frequency is supported by Intel ® generation processors. ** Refer to www.asus.com for the latest Memory QVL (Qualified Vendors List). *** When you install a total memory of 4GB capacity or more, Windows 32-bit operating system may only recognize less ®...
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® - Network iControl - ASUS AI Suite II - Ai Charger - ASUS Anti-Surge Protection - ASUS UEFI BIOS featuring graphics user interface ASUS Quiet Thermal Solution: - ASUS Fan Xpert ASUS EZ DIY: - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2 - ASUS MyLogo 2™...
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P8B75-M LX specifications summary BIOS features 128 Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3 Manageability WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE Accessories 1 x Serial ATA 3.0Gb/s cable...
® 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.
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Complete USB 3.0 Integration ASUS facilitates strategic USB 3.0 accessibility for both the front and rear panel – 4 USB 3.0 ports in total. Experience the latest plug & play connectivity at speeds up to 10 times faster than USB 2.0. This motherboard affords greater convenience to high speed connectivity.
- F12 BIOS snapshot hotkey for sharing UEFI information and troubleshooting - New F3 Shortcut for most accessed information - ASUS DRAM SPD (Serial Presence Detect) information for accessing memory information, detecting faulty DIMMs, and helping with difficult POST situations.
It easily delivers stable system-level upgrades for every use. AI Suite II With its fast user-friendly interface, ASUS AI Suite II consolidates all the exclusive ASUS features into one simple to use software package. It allows you to supervise overclocking, energy management, fan speed control, and voltage and sensor readings.
BIOS file using the bundled support DVD or USB flash disk that contains the latest BIOS file. ASUS EZ Flash 2 ASUS EZ Flash 2 is a utility that allows you to update the BIOS without using an OS-based utility. C.P.R. (CPU Parameter Recall) The BIOS C.P.R.
Place six 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 P8B75-M LX Chapter 1: Product introduction...
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 LGA1155 socket.
1.6.1 Installing the CPU The LGA1156 CPU is incompatible with the LGA1155 socket. DO NOT install a LGA1156 CPU on the LGA1155 socket. ASUS P8B75-M LX...
1.6.2 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. To install the CPU heatsink and fan assembly ASUS P8B75-M LX 1-11...
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To uninstall the CPU heatsink and fan assembly 1-12 Chapter 1: Product introduction...
Channel A DIMM_A1 Channel B DIMM_B1 P8B75-M LX P8B75-M LX 240-pin DDR3 DIMM sockets 1.7.2 Memory configurations 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 configuration.
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We suggest that you install the module into A1 slot. • 2 DIMMs: Supports two (2) modules inserted into the blue slots and the black slots as one pair of Dual-channel memory configuration. Visit the ASUS website at www.asus.com for the latest QVL. ASUS P8B75-M LX 1-19...
1.7.3 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. Press the retaining clips outward to DIMM notch unlock a DIMM socket.
Normal Clear RTC (Default) P8B75-M LX Clear RTC RAM 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 for about 5-10 seconds, then move the cap back to pins 1-2.
Pink (Rear panel) Mic In Mic In Bass/Center Bass/Center Lime (Front panel) Side Speaker Out To configure an 8-channel audio output: Use a chassis with HD audio module in the front panel to support an 8-channel audio output. ASUS P8B75-M LX 1-23...
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USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0/1.1 devices. USB 3.0 ports 1 and 2. These two 9-pin Universal Serial Bus (USB) ports connect to USB 3.0/2.0 devices. •...
Legacy AC’97 pin definition compliant definition P8B75-M LX Front panel audio connector • We recommend that you connect a high-definition front panel audio module to this connector to avail of the motherboard’s high-definition audio capability. • If you want to connect a high-definition front panel audio module to this connector, set the Front Panel Type item in the BIOS setup to [HD].
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• 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. Serial port connector (10-1 pin COM1) This connector is for a serial (COM) port.
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• The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power. • Only the 4-pin CPU fan supports the ASUS Fan Xpert feature. LPT connector (26-1 pin LPT) The LPT (Line Printing Terminal) connector supports devices such as a printer. LPT is standardized as IEEE 1284, which is the parallel port interface on IBM PC-compatible computers.
PIN 1 P8B75-M LX +HD_LED RESET P8B75-M LX System panel connector • System power LED (2-pin PLED) This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector. The system power LED lights up when you turn on the system power, and blinks when the system is in sleep mode.
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® These connectors connect to Serial ATA 3.0 Gb/s hard disk drives and optical drives via Serial ATA 3.0 Gb/s signal cables. P8B75-M LX P8B75-M LX Intel SATA 3.0Gb/s connectors ® • You must install Windows XP Service Pack 3 or later version before using Serial ATA ®...
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This connector is for the additional USB 3.0 ports. Connect the USB 3.0 bracket cable to this connector, then install the USB 3.0 bracket to the rear side of the chassis. If your chassis support customized front panel installation, with ASUS USB 3.0 header, you can have a front panel USB 3.0 solution.
Remove the jumper caps only when you intend to use the chassis intrusion detection feature. CHASSIS P8B75-M LX P8B75-M LX Chassis intrusion connector 1.11 Onboard LEDs Standby Power LED The motherboard comes with a standby power LED that lights up to indicate that the system is ON, in sleep mode, or in soft-off mode.
The contents of the Support DVD are subject to change at any time without notice. Visit the ASUS website at www.asus.com for updates. To run the Support DVD Place the Support DVD to the optical drive.
Local Administrator rights on the target machine • THE Intel SBA does not support the 800 x 600 screen resolution. ® • Visit the ASUS website at www.asus.com for the latest CPU QVL (Qualified Vendors List). ASUS P8B75-M LX 1-33...
Updating the BIOS To update the BIOS: From the Windows desktop, click Start > Programs > ASUS > AI Suite II > AI Suite II X.XX.XX to ® launch the AI Suite II utility. The AI Suite II Quick Bar appears.
Insert the USB flash disk that contains the latest BIOS file to the USB port. Enter the Advanced Mode of the BIOS setup program. Go to the Tool menu to select ASUS EZ Flash Utility and press <Enter> to enable it.
2.1.3 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS file when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS file using the motherboard support DVD or a USB flash drive that contains the updated BIOS file.
Insert the USB flash drive with the latest BIOS file and BIOS Updater to the USB port. Boot your computer. When the ASUS Logo appears, press <F8> to show the BIOS Boot Device Select Menu. Insert the support DVD into the optical drive and select the optical drive as the boot device.
Select the Load Optimized Defaults item under the Exit menu. Refer to section 2.9 Exit menu for details. • Ensure to connect all SATA hard disk drives after updating the BIOS file if you have disconnected them. ASUS P8B75-M LX...
• The BIOS setup screens shown in this section are for reference purposes only, and may not exactly match what you see on your screen. • Visit the ASUS website at www.asus.com to download the latest BIOS file for this motherboard.
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Enters the Advanced Mode • The boot device options vary depending on the devices you installed to the system. • The Boot Menu(F8) button is available only when the boot device is installed to the system. ASUS P8B75-M LX...
The Advanced Mode provides advanced options for experienced end-users to configure the BIOS settings. The figure below shows an example of the Advanced Mode. Refer to the following sections for the detailed configurations. To access the EZ Mode, click Exit, then select ASUS EZ Mode. Back button Menu items...
You cannot select an item that is not user-configurable. A configurable field is highlighted when selected. To change the value of a field, select it and press <Enter> to display a list of options. ASUS P8B75-M LX...
Main menu The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu provides you an overview of the basic system information, and allows you to set the system date, time, language, and security settings. UEFI BIOS Utility - Advanced Mode Exit Main...
To clear the user password, follow the same steps as in changing a user password, but press <Enter> when prompted to create/confirm the password. After you clear the password, the User Password item on top of the screen shows Not Installed. ASUS P8B75-M LX 2-11...
Scroll down to display the following items: Target DRAM Speed : xxxxMHz Displays the current DRAM speed. 2.4.1 ASUS MultiCore Enhancement [Enabled] [Enabled] Sets to [Enabled] for maximum performance under XMP/Manual/User- defined memory frequency mode. [Disabled] Set to [Disabled] for default core ratio settings.
Turbo Mode [Enabled] [Enabled] Allows processor cores to run faster than marked frequency in specific conditions. [Disabled] Disables this function. The first three items of the following appear only when you set the Turbo Mode item to [Enabled]. ASUS P8B75-M LX 2-13...
Long Duration Power Limit [Auto] Allows you to limit the turbo ratio’s long duration power. Use the <+> and <-> keys to adjust the value. Long Duration Maintained [Auto] Allows you to maintain the turbo ratio’s long duration power. Use the <+> and <-> keys to adjust the value. Short Duration Power Limit [Auto] Allows you to limit the turbo ratio’s long duration power.
• The system may need better cooling system to work stably under high voltage settings. 2.4.11 PCH Voltage [Auto] Allows you to set the Platform Controller Hub voltage. Configuration options: [Auto] [+0.05V] [+0.10V] [+0.15V] ASUS P8B75-M LX 2-15...
↑↓: Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F3: Shortcut F5: Optimized Defaults F6: ASUS Ratio Boost F10: Save ESC: Exit F12: Print Screen Version 2.10.1208. Copyright (C) 2012 American Megatrends, Inc. 2.5.1 CPU Configuration The items in this menu show the CPU-related information that the BIOS automatically detects.
Allows you to disable or enable the CPU C6 report to OS. Configuration options: [Auto] [Enabled] [Disabled] 2.5.2 PCH Configuration High Precision Timer [Enabled] Allows you to enable or disable the High Precision Event Timer. Configuration options: [Enabled] [Disabled] ASUS P8B75-M LX 2-17...
Intel Rapid Start Technology [Disabled] ® Allows you to enable or disable the Intel(R) Rapid Start Technology. Configuration options: [Enabled] [Disabled] The following three items appear only when you set the Intel(R) Rapid Start Technology to [Enabled]. Entry on S3 RTC Wake [Enabled] Allows you to enable or disable the iFFS invocation upon S3 RTC wake.
Configuration options: [Enabled] [Disabled] Un-Configure ME [Disabled] Sets this item to [Disabled] to unconfigure AMT/ME without using a password or set it to [Enabled] to use a password. Configuration options: [Enabled] [Disabled] ASUS P8B75-M LX 2-19...
WatchDog [Disabled] When set to [Enabled], the WatchDog Timer will monitor the time taken for each task performed by a software or hardware. Configuration options: [Enabled] [Disabled] The following two items become configurable only when you set the WatchDog Timer item to [Enabled].
Device Mode [STD Printer Mode] Allows you to select the Printer Port mode. Configuration options: [STD Printer Mode] [SPP Mode] [EPP-1.9 and SPP Mode] [EPP-1.7 and SPP Mode] [ECP Mode] [ECP and EPP 1.9 Mode] [ECP and EPP 1.7 Mode] ASUS P8B75-M LX 2-21...
2.5.8 Restore AC Power Loss [Power Off] [Power On] The system goes into on state after an AC power loss. [Power Off] The system goes into off state after an AC power loss. [Last State] The system goes into either off or on state, whatever the system state was before the AC power loss.
F2: Previous Values 3.3V Voltage +3.312 V F3: Shortcut F5: Optimized Defaults 5V Voltage +5.080 V F6: ASUS Ratio Boost F10: Save ESC: Exit 12V Voltage +12.192 V F12: Print Screen Version 2.10.1208. Copyright (C) 2012 American Megatrends, Inc. Scroll down to display the following items:...
2.6.1 CPU Temperature / MB Temperature [xxxºC/xxxºF] The onboard hardware monitor automatically detects and displays the CPU and motherboard temperatures. Select Ignore if you do not wish to display the detected temperatures. 2.6.2 CPU / Chassis Fan Speed [xxxx RPM] or [Ignore] / [N/A] The onboard hardware monitor automatically detects and displays the CPU and chassis fan speeds in rotations per minute (RPM).
The onboard hardware monitor automatically detects the voltage output through the onboard voltage regulators. Select Ignore if you do not want to detect this item. 2.6.6 Anti Surge Support [Enabled] This item allows you to enable or disable the Anti Surge function. Configuration options: [Disabled] [Enabled] ASUS P8B75-M LX 2-25...
[Disabled] Disables the full screen logo display feature. Set this item to [Enabled] to use the ASUS MyLogo 2™ feature. Post Report [5 sec] This item appears only when the Full Screen Logo item is set to [Disabled] and allows you to set the waiting time for the system to display the post report.
> ASUS SPD Information 2.8.1 ASUS EZ Flash 2 Utility Allows you to run ASUS EZ Flash 2. Press [Enter] to launch the ASUS EZ Flash 2 screen. For more details, see section 2.1.2 ASUS EZ Flash 2. 2.8.2 ASUS O.C. Profile This item allows you to store or load multiple BIOS settings.
This option allows you to enter the EZ Mode screen. Launch EFI Shell from filesystem device This option allows you to attempt to launch the EFI Shell application (shellx64.efi) from one of the available devices that have a filesystem. ASUS P8B75-M LX 2-29...
Cet appareil est conforme aux normes CNR exemptes de licence d’Industrie Canada. Le fonctionnement est soumis aux deux conditions suivantes : (1) cet appareil ne doit pas provoquer d’interférences et (2) cet appareil doit accepter toute interférence, y compris celles susceptibles de provoquer un fonctionnement non souhaité de l’appareil. ASUS P8B75-M LX...
ASUS Recycling/Takeback Services ASUS recycling and takeback programs come from our commitment to the highest standards for protecting our environment. We believe in providing solutions for you to be able to responsibly recycle our products, batteries, other components as well as the packaging materials. Please go to http://csr.asus.com/english/Takeback.htm for the detailed recycling information in different...
+1-812-282-3777 +1-510-608-4555 Web site usa.asus.com Technical Support Telephone +1-812-282-2787 Support fax +1-812-284-0883 Online support support.asus.com ASUS COMPUTER GmbH (Germany and Austria) Address Harkort Str. 21-23, D-40880 Ratingen, Germany +49-2102-959911 Web site www.asus.de Online contact www.asus.de/sales Technical Support Telephone +49-1805-010923* Support Fax...