Asus P7H55 Owner's Manual Page 1

MotherboardP7H55

xP7H55 specications summaryASUS unique features ASUS Exclusive Overclocking Features: - ASUS TurboV - ASUS Turbo KeyASUS Exclusive Features:

xiInternal I/O connectors2 x USB 2.0/1.1 connectors support additional 4 USB 2.0/1.1 ports 1 x IDE connector 6 x SATA connectors 1 x CPU fan connec

1-1 Chapter 1: Product introductionChapter 1Product introduction Motherboard ASUS P7H55 motherboardCables 2 x Serial ATA 3.0Gb/s cables 1 x Ul

ASUS P7H55 1-2Intel® H55The Intel® H55 Express Chipset is the latest one-chipset design to support the latest 1156 socket Intel® Core™ i7 / Core™ i5/

1-3 Chapter 1: Product introductionMemOK!MemOK! quickly ensures memory boot compatibility. This remarkable memory rescue tool requires a mere push or

ASUS P7H55 1-4ASUS MyLogo2™This feature allows you to convert your favorite photo into a 256-color boot logo for a more colorful and vivid image on yo

1-5 Chapter 1: Product introduction1.4 Before you proceedTake note of the following precautions before you install motherboard components or change a

ASUS P7H55 1-61.5 Motherboard overviewBefore you install the motherboard, study the conguration of your chassis to ensure that the motherboard ts i

1-7 Chapter 1: Product introduction1.5.3 Motherboard layoutP7H55PCIEX16PCIEX1_2PCIEX1_1PCIEX1_3PCI1PCI2PCI3PRI_IDEMemOK!DRAM_LEDUSB1112 USB910PANELSP

ASUS P7H55 1-81.6 Central Processing Unit (CPU)The motherboard comes with a surface mount LGA1156 socket designed for the Intel® Core™ i7 / Core™ i5

iiE5291First Edition V1 January 2010Copyright © 2010 ASUSTeK Computer Inc. All Rights Reserved.No part of this manual, including the products and soft

1-9 Chapter 1: Product introduction3. Lift the load lever in the direction of the arrow until the load plate is completely lifted.Load plate4. Remov

ASUS P7H55 1-107. Close the load plate (A), and then push down the load lever (B), ensuring that the front edge of the load plate slides under the re

1-11 Chapter 1: Product introduction1.6.2 Installing the CPU heatsink and fanThe Intel® LGA1156 processor requires a specially designed heatsink and

ASUS P7H55 1-123. Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN.Do not forget to connect the CPU fan connector! Hardw

1-13 Chapter 1: Product introduction1.7 System memory1.7.1 OverviewThe motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modu

ASUS P7H55 1-141.7.2 Memory congurationsYou may install 512MB, 1GB, 2GB, and 4GB unbuffered non-ECC DDR3 DIMMs into the DIMM sockets.• The default

1-15 Chapter 1: Product introduction1.7.4 Removing a DIMMFollow these steps to remove a DIMM.2. Remove the DIMM from the socket.1.7.3 Installing a

ASUS P7H55 1-161.8 Expansion slotsIn the future, you may need to install expansion cards. The following sub-sections describe the slots and the expan

1-17 Chapter 1: Product introduction1.9 Jumpers1. Clear RTC RAM (3-pin CLRTC)This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS.

ASUS P7H55 1-182. Keyboard power (3-pin KBPWR)This jumper allows you to enable or disable the keyboard wake-up feature. When you set this jumper to p

iiiContentsNotices ... viSafety information ...

1-19 Chapter 1: Product introduction• The DRAM_LED also lights when the DIMM is not properly installed. Turn off the system and reinstall the DIMM be

ASUS P7H55 1-201.11 Connectors1.11.1 Rear panel connectors291311 101143 4 5 612781. PS/2 Mouse port (green). This port is for a PS/2 mouse.2. LAN

1-21 Chapter 1: Product introductionAudio 2, 4, 6, or 8-channel conguration9. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) port

ASUS P7H55 1-222. IDE connector (40-1 pin PRI_EIDE)The onboard IDE connector is for the Ultra DMA 133/100/66 signal cable. There are three connectors

1-23 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 P7H55 1-247. Digital audio connector (4-1 pin SPDIF_OUT)This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. Connec

1-25 Chapter 1: Product introduction8. Serial ATA connectors (7-pin SATA1-6)These connectors are for the Serial ATA signal cables for Serial ATA 3Gb/

ASUS P7H55 1-2610. System panel connector (20-8 pin PANEL)This connector supports several chassis-mounted functions.• System power LED (2-pin PLED)T

1-27 Chapter 1: Product introduction1.12 Software support1.12.1 Installing an operating systemThis motherboard supports Windows® XP / 64-bit XP / Vi

Chapter 2: BIOS information 2-1Chapter 2BIOS informationSave a copy of the original motherboard BIOS le to a USB ash disk in case you need to restor

ivContents1.11 Connectors ... 1-201.11.1 Rear panel connectors ...

2-2 ASUS P7H552.1.2 ASUS EZ Flash 2The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based utility. Before you start usin

Chapter 2: BIOS information 2-32.1.3 ASUS CrashFree BIOSThe ASUS CrashFree BIOS is an auto recovery tool that allows you to restore the BIOS le when

2-4 ASUS P7H55• NTFS is not supported under DOS environment. Do not save the BIOS le and BIOS Updater to a hard disk drive or USB ash drive in NTFS

Chapter 2: BIOS information 2-5ASUSTek BIOS Updater for DOS V1.00b [09/06/22]Current ROMUpdate ROMNoteSaving BIOS:FLASH TYPE: MXIC 25L1605APATH: A:\

2-6 ASUS P7H55Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to force reset from a running operating system ca

Chapter 2: BIOS information 2-72.2.2 Menu barThe menu bar on top of the screen has the following main items:Main For changing the basic system congu

2-8 ASUS P7H552.2.5 Submenu itemsA solid triangle before each item on any menu screen means that the item has a submenu. To display the submenu, sele

Chapter 2: BIOS information 2-9LBA/Large Mode [Auto]Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device supports th

2-10 ASUS P7H552.3.4 Storage CongurationThe Storage Conguration menu allows you to congure your storage device(s). Select an item then press <E

Chapter 2: BIOS information 2-112.4 Ai Tweaker menuThe Ai Tweaker menu items allow you to congure overclocking-related items.Be cautious when changi

vContents2.4.6 DRAM Timing Control ... 2-132.5 Advanced menu ...

2-12 ASUS P7H55DRAM O.C. Profile [DDR3-1600MHz]This item appears only when you set the Ai Overclock Tuner item to [D.O.C.P.] and allows you to select

Chapter 2: BIOS information 2-13The following two items appear only when you set the Ai Overclock Tuner item to [Manual], [D.O.C.P.] or [X.M.P.].BCLK

2-14 ASUS P7H55DRAM RAS# to RAS# Delay [Auto]Conguration options: [Auto] [1 DRAM Clock] – [7 DRAM Clock]DRAM REF Cycle Time [Auto]Conguration option

Chapter 2: BIOS information 2-15DRAM READ to READ Delay(DR) [Auto]Conguration options: [Auto] [2 DRAM Clock] – [9 DRAM Clock]DRAM READ to READ Delay(

2-16 ASUS P7H55IMC Voltage [Auto] Allows you to set the CPU Integrated Memory Controller voltage. The values range from 1.10V to 1.45V with a 0.05V in

Chapter 2: BIOS information 2-172.5.1 CPU CongurationThe items in this menu show the CPU-related information that the BIOS automatically detects.The

2-18 ASUS P7H55Adjacent Cache Line Prefetcher [Enabled][Enabled] Enables the Adjacent Cache Line Prefetcher function. This item should be enabled

Chapter 2: BIOS information 2-192.5.2 Uncore CongurationThe North Bridge Conguration menu allows you to change the advanced chipset settings. Memor

2-20 ASUS P7H55The following items appear only when you set USB Support to [Enabled].Legacy USB Support [Auto][Disabled] Disables the function.[Enabl

Chapter 2: BIOS information 2-212.6.1 Suspend Mode [Auto]Allows you to select the Advanced Conguration and Power Interface (ACPI) state to be used f

viNoticesFederal Communications Commission StatementThis device complies with Part 15 of the FCC Rules. Operation is subject to the following two cond

2-22 ASUS P7H55Power On By PCI Devices [Disabled][Disabled] Disables the PME to wake up from S5 by PCI devices.[Enabled] Allows you to turn on the s

Chapter 2: BIOS information 2-23Chassis Fan Profile [Standard]This item appears only when you enable the Chassis Q-Fan Control feature and allows you

2-24 ASUS P7H552.7.2 Boot Settings CongurationQuick Boot [Enabled]Enabling this item allows the BIOS to skip some power on self tests (POST) while b

Chapter 2: BIOS information 2-25After you have set a supervisor password, the other items appear to allow you to change other security settings.User A

2-26 ASUS P7H552.8.1 ASUS O.C. ProleThis item allows you to store or load multiple BIOS settings. Add Your CMOS ProleAllows you to save the current

Chapter 2: BIOS information 2-27enter the Express Gate. User data includes the Express Gate’s settings as well as any personal information stored by t

2-28 ASUS P7H55

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

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

ixP7H55 specications summary(continued on the next page)CPU LGA1156 socket for Intel® Core™ i7/ Core™ i5/ Core™ i3 / Pentium® processors Supports I