Motherboard P7H55-M LE P7H55-M LX P7H55-M LX2
E5956 First Edition V1 July 2010 Copyright © 2010 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”).
Contents Notices........................................................................................................... v Safety information....................................................................................... vi About this guide.......................................................................................... vi P7H55-M LE Series specifications summary.......................................... viii Chapter 1: Product introduction 1.1 Before you proceed.....................
Contents 2.2 BIOS setup program..................................................................... 2-7 2.3 Main menu..................................................................................... 2-8 2.4 2.5 2.6 2.3.1 System Time [xx:xx:xx].................................................... 2-8 2.3.2 System Date [Day xx/xx/xxxx].......................................... 2-8 2.3.3 Legacy Diskette A [1.44M, 3.5 in.].................................... 2-8 2.3.4 Language [English].......
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.
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.
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 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.
P7H55-M LE Series specifications summary CPU Chipset Memory Expansion slots VGA output Storage LAN Audio USB ASUS unique features LGA1156 socket for Intel® Core™ i7/ Core™ i5/ Core™ i3/ Pentium® processors Supports Intel® next generation 32nm multi-core CPU * Refer to www.asus.com for Intel® CPU support list. Intel® H55 Express Chipset Dual-channel memory architecture 2 x DIMM, max.
P7H55-M LE Series specifications summary Rear panel ports Internal connectors BIOS features Manageability Accessories Support DVD Form factor 1 x PS/2 Mouse port 1 x PS/2 Keyboard port 1 x COM port (for P7H55-M LE only) 1 x D-Sub port 1 x DVI-D port (for P7H55-M LE and P7H55-M LX only) 1 x HDMI port (for P7H55-M LE only) 1 x LAN (RJ-45) port 6 x USB 2.0/1.1 ports 3 x audio jacks 3 x USB 2.0/1.1 connectors support additional 6 USB 2.0/1.
Chapter 1 Product introduction Thank you for buying an ASUS® P7H55-M LE Series motherboard! Before you start installing the motherboard, and hardware devices on it, check the items in your motherboard package. Refer to page ix for the list of accessories. If any of the items is damaged or missing, contact your retailer. 1.1 Before you proceed Take note of the following precautions before you install motherboard components or change any motherboard settings.
1.2 Motherboard overview 1.2.1 Motherboard layout The layout varies with models. The layout illustrations in this user guide are for P7H55-M LE only. Ensure that you install the motherboard into the chassis in the correct orientation. The edge with external ports goes to the rear part of the chassis. 1 2 3 4 5 6 21.8cm(8.
1.3 Central Processing Unit (CPU) This motherboard comes with a surface mount LGA1156 socket designed for the Intel® Core™ i7 / Core™ i5 / Core™ i3 / Pentium® processors. Ensure that all power cables are unplugged 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.
1.4.2 Memory configurations You may install 512MB, 1GB, 2GB, and 4GB 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. Any excess memory from the higher-sized channel is then mapped for single-channel operation. • Always install DIMMs with the same CAS latency.
DDR3-1333MHz capability DIMM Support Timing DIMM (BIOS) Voltage - - - • • - - 8-8-8-8-24 1.35V(low voltage) • • F3-10666CL8D-4GBHK(XMP) 4096MB(Kit of 2 ) DS - - 8-8-8-21 1.5-1.6V • • F3-10666CL7T-6GBPK(XMP) 6144MB(Kit of 3 ) DS - - 7-7-7-18 1.5~1.6V • G.SKILL F3-10666CL9T-6GBNQ 6144MB(Kit of 3) DS - - 9-9-9-24 1.5V~1.6V • GEIL GV32GB1333C9DC 1024MB SS - - 9 - • GEIL GV34GB1333C7DC 2048MB DS - - 7-7-7-24 1.
DDR3-1066MHz capability DIMM Support Timing DIMM (BIOS) Voltage A* C* 9GF22D9KPT 7 - • • Micron 9HF22D9KPT 7 - • • SS ELPIDA J1108EDSE-DJ-F - 1.35V(low voltage) • • SS Elpida J5308BASE-AC-E - - • 512MB SS Elpida J5308BASE-AC-E - - • • 1024MB DS Elpida J5308BASE-AC-E - - • • 2048MB DS ELPIDA J1108EDSE-DJ-F - 1.35V(low voltage) • • KINGSTON KVR1066D3N7/1G 1024MB SS Kingston D1288JEKAPGA7U 7 1.
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.
1.6 Jumpers 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 date, time, and 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. CLRTC 1 2 2 3 Normal (Default) Clear RTC P7H55-M LE P7H55-M LE Clear RTC RAM To erase the RTC RAM: 1. Turn OFF the computer and unplug the power cord. 2.
1.7 Connectors 1.7.1 Rear panel ports 1 2 3 12 11 10 5 6 4 8 9 7 1. PS/2 Mouse port. This port is for a PS/2 mouse. 2. COM port (for P7H55-M LE only). This 9-pin COM1 port is for serial devices. 3. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices. 4. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub. Refer to the table on the next page for the LAN port LED indicators.
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. 8. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports connect to USB 2.0/1.1 devices. 9. USB 2.0 ports 3, 4, 5, and 6. These four 4-pin Universal Serial Bus (USB) ports connect to USB 2.0/1.1 devices. 10. DVI-D port (for P7H55-M LE and P7H55-M LX only). This port is for any DVI-D compatible device.
2.
4. CPU and Chassis fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN) Connect the fan cables to the fan connectors on the motherboard, making sure 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. Insufficient air flow inside the system may damage the motherboard components. They are not jumpers! DO NOT place jumper caps on the fan connectors.
6. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) These connectors are for an ATX power supply. The plugs from the power supply are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit.
7. Front panel audio connector (10-1 pin AAFP) NC AGND NC NC SENSE2_RETUR GND PRESENCE# SENSE1_RETUR This connector is for a chassis-mounted front panel audio I/O module that supports either High Definition Audio or AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector.
9. IDE connector (40-1 pin PRI_EIDE) (for P7H55-M LE only) The onboard IDE connector is for Ultra DMA 100/66 signal cable. There are three connectors on each Ultra DMA 100/66 signal cable: blue, black, and gray.
10. Serial port connectors (10-1 pin COM2) (for P7H55-M LE and P7H55-M LX only) The connector is for a serial (COM) port. Connect the serial port module cable to the connector, then install the module to a slot opening at the back of the system chassis. The serial port bracket (COM2) is purchased separately.
1.8 Software support 1.8.1 Installing an operating system This motherboard supports Windows® XP/Vista/7 Operating Systems (OS). Always install the latest OS version and corresponding updates to maximize the features of your hardware. • Motherboard settings and hardware options vary. Refer to your OS documentation for detailed information.
Chapter 2 BIOS information 2.1 Managing and updating your BIOS Save a copy of the original motherboard BIOS file to a USB flash disk in case you need to restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update utility. 2.1.1 ASUS Update The ASUS Update is a utility that allows you to manage, save, and update the motherboard BIOS in Windows® environment. • ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP).
The ASUS Update utility is capable of updating itself through the Internet. Always update the utility to avail all its features. Updating from a BIOS file 3. a. Select Update BIOS from a file, then click Next. b. Locate the BIOS file from the Open window, then click Open. Follow the onscreen instructions to complete the updating process. 2.1.2 ASUS EZ Flash 2 The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS‑based utility.
• This function supports USB flash disks with FAT 32/16 format and single partition only. • DO NOT shut down or reset the system while updating the BIOS to prevent system boot failure! 2.1.3 ASUS BIOS Updater The ASUS BIOS Updater allows you to update BIOS in DOS environment. This utility also allows you to copy the current BIOS file that you can use as a backup when the BIOS fails or gets corrupted during the updating process. The succeeding utility screens are for reference only.
3. When the Make Disk menu appears, select the FreeDOS command prompt item by pressing the item number. 4. At the FreeDOS prompt, type d: and press to switch the disk from Drive C (optical drive) to Drive D (USB flash drive). Welcome to FreeDOS (http://www.freedos.org)! C:\>d: D:\> Backing up the current BIOS To backup the current BIOS file using the BIOS Updater Ensure that the USB flash drive is not write-protected and has at least 1024KB free space to save the file. 1.
Updating the BIOS file To update the BIOS file using BIOS Updater 1. At the FreeDOS prompt, type bupdater /pc /g and press . D:\>bupdater /pc /g 2. The BIOS Updater screen appears as below. ASUSTek BIOS Updater for DOS V1.00b [09/06/22] Current ROM BOARD: P7H55-M LX VER: 0301 DATE: 07/12/2010 Update ROM BOARD: Unknown VER: Unknown DATE: Unknown PATH: A:\ P7H55MLX.ROM A: Note [Enter] Select or Load [Up/Down/Home/End] Move 3.
2.1.4 ASUS CrashFree BIOS 3 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 BIOS file. • Before using this utility, rename the BIOS file in the USB flash drive into P7H55MLE.ROM (for P7H55-M LE), P7H55MLX.ROM (for P7H55-M LX), or PH55MLX2.ROM (for P7H55-M LX2).
2.2 BIOS setup program Use the BIOS Setup program to update the BIOS or configure its parameters. The BIOS screens include navigation keys and brief online help to guide you in using the BIOS Setup program. Entering BIOS Setup at startup To enter BIOS Setup at startup: • Press during the Power-On Self Test (POST). If you do not press , POST continues with its routines. Entering BIOS Setup after POST To enter BIOS Setup after POST: • Press ++ simultaneously.
2.3 Main menu When you enter the BIOS Setup program, the Main menu screen appears, giving you an overview of the basic system information. Main Advanced Power BIOS SETUP UTILITY Boot Tools Exit System Time System Date Legacy Diskette A Language SATA SATA SATA SATA SATA SATA 1 2 3 4 5 6 [00:31:48] [Fri 04/10/2009] [1.44M, 3.5 in.
Type [Auto] Selects the type of SATA drive. Setting to [Auto] allows automatic selection of the appropriate SATA device type. Select [CDROM] if you are specifically configuring a CD-ROM drive. Select [ARMD] (ATAPI Removable Media Device) if your device is either a ZIP, LS-120, or MO drive. Configuration options: [Not Installed] [Auto] [CDROM] [ARMD] This item does not appear if you select SATA 5/6 devices. LBA/Large Mode [Auto] Enables or disables the LBA mode.
Hard Disk Write Protect [Disabled] Disables or enables device write protection. This will be effective only if device is accessed through BIOS. Configuration option: [Disabled] [Enabled] IDE Detect Time Out (Sec) [35] Selects the time out value for detecting ATA/ATAPI devices. Configuration options: [0] [5] [10] [15] [20] [25] [30] [35] 2.3.7 System Information This menu gives you an overview of the general system specifications. The BIOS automatically detects the items in this menu.
C1E Support [Enabled] Allows you to enable or disable C1E Support. Configuration options: [Disabled] [Enabled] Hardware Prefetcher [Enabled] Setting this item to [Enabled] allows the processor to fetch data and instructions from the memory into the cache that are likely to be required in the near future. This reduces the latency associated with memory reads.
Intel(R) SpeedStep(TM) Tech [Enabled] When this item is set to [Enabled], the CPU speed is controlled by the operating system. When this item is set to [Disabled], the CPU runs at its default speed. Configuration options: [Enabled] [Disabled] Intel(R) TurboMode Tech [Enabled] This item appears only if you set the CPU Ratio Setting item to [Auto]. Turbo mode allows processor cores to run faster than marked frequency in specific condition.
JMB368 IDE [Enabled] Allows you to enable or disable the JMB368 IDE Controller. Configuration options: [Disabled] [Enabled] This item appears only on P7H55-M LE. Onboard LAN [Enabled] Allows you to enable or disable the onboard LAN controller. Configuration options: [Enabled] [Disabled] Onboard LAN Boot ROM [Disabled] Allows you to enable or disable the boot ROM in the onboard LAN controller. This item appears only when the Onboard LAN item is set to [Enabled].
2.4.4 USB Configuration The items in this menu allows you to change the USB-related features. Select an item then press to display the configuration options. The Module Version and USB Devices Enabled items show the auto-detected values. If no USB device is detected, the item shows None. USB Functions [Enabled] Allows you to disable or enable the USB functions.
2.4.6 Intel VT-d Configuration Intel VT-d [Disabled] Allows you to enable or disable the Intel® Virtualization Technology for Directed I/O. Configuration options: [Disabled] [Enabled] 2.5 Power menu The Power menu items allow you to change the settings for the Advanced Power Management (APM). Select an item then press to display the configuration options. Main Advanced Power Suspend Mode ACPI 2.
2.5.5 APM Configuration Restore on AC Power Loss [Power Off] (P7H55-M LE only) When set to [Power Off], the system goes into off state after an AC power loss. When set to [Power On], the system goes on after an AC power loss. When set to [Last State], the system goes into either off or on state, whatever the system state was before the AC power loss. Configuration options: [Power Off] [Power On] [Last State] Power On By RTC Alarm [Disabled] Allows you to enable or disable RTC to generate a wake event.
CPU/Chassis Q-Fan Function [Enabled] Allows you to enable or disable the CPU/Chassis Q-Fan function. Configuration options: [Disabled] [Enabled] CPU/Chassis Q-Fan Mode [Optimal] Allows you to select CPU/Chassis Q-Fan mode. Configuration options: [Performance] [Optimal] [Silent] 2.6 Boot menu The Boot menu items allow you to change the system boot options. Select an item then press to display the sub-menu.
AddOn ROM Display Mode [Force BIOS] Sets the display mode for option ROM. Configuration options: [Force BIOS] [Keep Current] Bootup Num-Lock [On] Allows you to select the power-on state for the NumLock. Configuration options: [Off] [On] Wait For ‘F1’ If Error [Enabled] When set to Enabled, the system waits for the F1 key to be pressed when error occurs.
Change User Password Select this item to set or change the user password. The User Password item on top of the screen shows the default Not Installed. After you set a password, this item shows Installed. To set a User Password: 1. Select the Change User Password item and press . 2. On the password box, key in a password containing up to six letters, or numbers, or both, then press . 3. Confirm the password when prompted.
2.8 Exit menu The Exit menu items allow you to load the optimal or failsafe default values for the BIOS items, and save or discard your changes to the BIOS items. Main Advanced Power Exit Options Exit & Save Changes Exit & Discard Changes Discard Changes Load Setup Defaults BIOS SETUP UTILITY Boot Tools Exit Exit system setup after saving the cahnges. F10 key can be used for this operation. Pressing does not immediately exit this menu.
P7P55/P7H57/P7H55 series motherboards installation notices Intel® LGA1156 processor and chipset combination instruction Chipset CPU type Clarkdale CPU (with integrated GPU) Lynnfield CPU • Integrated GPU enabled H57/H55 Discrete VGA card required • HDMI/DVI/D-Sub ports enabled* P55 Discrete VGA card required Discrete VGA card required * Only available for motherboards with this function.
ASUS contact information ASUSTeK COMPUTER INC. Address Telephone Fax E-mail Web site Technical Support Telephone Online support 15 Li-Te Road, Peitou, Taipei, Taiwan 11259 +886-2-2894-3447 +886-2-2890-7798 info@asus.com.tw www.asus.com.tw +86-21-38429911 support.asus.
ASUS P7H55-M LE Series 2-23 (510)739-3777/(510)608-4555 800 Corporate Way, Fremont, CA 94539. Asus Computer International Signature : Date : Representative Personʼs Name : -XO. 21, 2010 Steve Chang / President This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
