MotherboardP7P55-M
xP7P55-M specications summaryASUS exclusive overclocking featuresSFS (Stepless Frequency Selection): - Internal Base Clock tuning from 133 MHz up
ASUS P7P55-M 1-1Chapter 1Product introduction Motherboard ASUS P7P55-M motherboardCables 2 x Serial ATA 3.0Gb/s cables 1 x Ultra DMA 133/100/6
1-2 Chapter 1: Product introductionIntel® P55The Intel® P55 Express Chipset is the latest one-chipset design to support the latest 1156 socket Intel®
ASUS P7P55-M 1-3ASUS EPUASUS EPU is a unique power saving technology that detects the current system loadings and adjusts the power consumption in rea
1-4 Chapter 1: Product introductionC.P.R. (CPU Parameter Recall) The BIOS C.P.R. feature automatically restores the CPU default settings when the syst
ASUS P7P55-M 1-51.4 Before you proceedTake note of the following precautions before you install motherboard components or change any motherboard sett
1-6 Chapter 1: Product introduction1.5 Motherboard overviewBefore you install the motherboard, study the conguration of your chassis to ensure that
ASUS P7P55-M 1-71.5.3 Motherboard layoutP7P55-MPCIEX16PCI1PCIEX1_1PCIEX1_2LPTUSB1314 USB1112 USB910USBPW9-14AAFPATX12VUSBPW1-8KBPWREATXPWRCPU_FANCHA_
1-8 Chapter 1: Product introduction1.6 Central Processing Unit (CPU)The motherboard comes with a surface mount LGA1156 socket designed for the Intel®
ASUS P7P55-M 1-93. Lift the load lever in the direction of the arrow until the load plate is completely lifted.Load plate4. Remove the PnP cap from
iiCopyright © 2009 ASUSTeK Computer Inc. All Rights Reserved.No part of this manual, including the products and software described in it, may be repro
1-10 Chapter 1: Product introduction7. Close the load plate (A), and then push down the load lever (B), ensuring that the front edge of the load plat
ASUS P7P55-M 1-111.6.2 Installing the CPU heatsink and fanThe Intel® LGA1156 processor requires a specially designed heatsink and fan assembly to ens
1-12 Chapter 1: Product introduction3. Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN.Do not forget to connect the CPU
ASUS P7P55-M 1-131.7 System memory1.7.1 OverviewThe motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets.
1-14 Chapter 1: Product introduction1.7.2 Memory congurationsYou may install 512MB, 1GB, 2GB, and 4GB unbuffered non-ECC DDR3 DIMMs into the DIMM so
ASUS P7P55-M 1-15P7P55-M Motherboard Qualied Vendors Lists (QVL) DDR3-2000 (O.C.) MHz capabilityVendor Part No. SizeSS/DSBrand Chip NO.Timing DIMM (B
1-16 Chapter 1: Product introduction(continued on the next page)DDR3 1600 MHz capabilityDDR3 1333 MHz capabilityVendor Part No. SizeSS/DSBrand Chip NO
ASUS P7P55-M 1-17Vendor Part No. SizeSS/DSBrand Chip NO.Timing DIMM (BIOS)VoltageDIMM SupportA* B* C*Crucial BL25664ABA1336.16SFB1 4096MB(Kit of 2) DS
1-18 Chapter 1: Product introduction• ASUS exclusively provides hyper DIMM support function.• Hyper DIMM support is subject to the physical characte
ASUS P7P55-M 1-191.7.4 Removing a DIMMTo remove a DIMM:1. Simultaneously press the retaining clips outward to unlock the DIMM.2. Remove the DIMM fr
iiiContentsNotices ... viSafety information ...
1-20 Chapter 1: Product introduction1.8 Expansion slotsIn the future, you may need to install expansion cards. The following sub-sections describe th
ASUS P7P55-M 1-211.9 Jumpers1. Clear RTC RAM (3-pin CLRTC)This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the C
1-22 Chapter 1: Product introduction2. Keyboard power (3-pin KBPWR)This jumper allows you to enable or disable the keyboard wake-up feature. When you
ASUS P7P55-M 1-231.11 Connectors1.11.1 Rear panel connectors4112133121145 6 7 89101. PS/2 Keyboard / Mouse port (purple). This port is for a PS/2 k
1-24 Chapter 1: Product introductionAudio 2, 4, 6, or 8-channel conguration11. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) por
ASUS P7P55-M 1-252. IDE connector (40-1 pin PRI_EIDE)The onboard IDE connector is for the Ultra DMA 133/100/66 signal cable. There are three connecto
1-26 Chapter 1: Product introduction• For a fully congured system, we recommend that you use a power supply unit (PSU) that complies with ATX 12 V S
ASUS P7P55-M 1-27Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside the system may damage the motherboard compo
1-28 Chapter 1: Product introduction7. Serial ATA connectors (7-pin SATA1-6)These connectors are for the Serial ATA signal cables for Serial ATA 3Gb/
ASUS P7P55-M 1-299. System panel connector (20-8 pin PANEL)This connector supports several chassis-mounted functions.• System power LED (2-pin PLED)
ivContents1.12 Software support ... 1-301.12.1 Installing an operating system .
1-30 Chapter 1: Product introduction1.12 Software support1.12.1 Installing an operating systemThis motherboard supports Windows® XP / Vista / 7 Oper
ASUS P7P55-M 2-1Chapter 2BIOS informationSave a copy of the original motherboard BIOS le to a USB ash disk in case you need to restore the BIOS in t
2-2 Chapter 2: BIOS informationUpdating from the Internet a. Select Update BIOS from the Internet, then click Next. b. Select the ASUS FTP site ne
ASUS P7P55-M 2-32.1.3 ASUS CrashFree BIOSThe ASUS CrashFree BIOS is an auto recovery tool that allows you to restore the BIOS le when it fails or ge
2-4 Chapter 2: BIOS information2.1.4 ASUS BIOS UpdaterThe ASUS BIOS Updater allows you to update BIOS in DOS environment. This utility also allows yo
ASUS P7P55-M 2-52. The BIOS Updater backup screen appears indicating the BIOS backup process. When BIOS backup is done, press any key to return to th
2-6 Chapter 2: BIOS information4. Select Yes and press <Enter>. When BIOS update is done, press <ESC> to exit BIOS Updater. Restart your
ASUS P7P55-M 2-72.2 BIOS setup programUse the BIOS Setup program to update the BIOS or congure its parameters. The BIOS screens include navigation k
2-8 Chapter 2: BIOS information2.3 Main menuWhen you enter the BIOS Setup program, the Main menu screen appears, giving you an overview of the basic
ASUS P7P55-M 2-9LBA/Large Mode [Auto]Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device supports this mode, and if
vContents2.7.2 Boot Settings Conguration ... 2-222.7.3 Security ...
2-10 Chapter 2: BIOS information2.3.5 System InformationThis menu gives you an overview of the general system specications. The BIOS automatically d
ASUS P7P55-M 2-11Ai Overclock Tuner [Auto]Allows selection of CPU overclocking options to achieve desired CPU internal frequency. Select either one of
2-12 Chapter 2: BIOS informationDRAM Frequency [Auto]Allows you to set the DDR3 operating frequency. Conguration options: [Auto] [DDR3-800MHz] [DDR3
ASUS P7P55-M 2-13DRAM Writer Recovery Time [Auto] Conguration options: [Auto] [1 DRAM Clock] - [15 DRAM Clock]DRAM Read to PRE Time [Auto]Conguratio
2-14 Chapter 2: BIOS informationCPU Clock Skew [Auto]Adjusting this item may help enhancing BCLK overclocking ability. You may need to adjust the NB C
ASUS P7P55-M 2-15C1E Support [Enabled]Allows you to enable or disable C1E Support. Conguration options: [Disabled] [Enabled]Hardware Prefetcher [Enab
2-16 Chapter 2: BIOS informationThe following item appears only when you installed an Intel® CPU that supports the Enhanced Intel® SpeedStep® Technolo
ASUS P7P55-M 2-172.5.2 ChipsetThe Chipset menu allows you to change the advanced chipset settings. Select an item then press <Enter> to display
2-18 Chapter 2: BIOS informationThe Module Version and USB Devices Enabled items show the auto-detected values. If no USB device is detected, the item
ASUS P7P55-M 2-192.5.5 PCI PnPThe PCI PnP menu items allow you to change the advanced settings for PCI/PnP devices. The menu includes setting IRQ and
viNoticesFederal Communications Commission StatementThis device complies with Part 15 of the FCC Rules. Operation is subject to the following two cond
2-20 Chapter 2: BIOS information2.6 Power menuThe Power menu items allow you to change the settings for the Advanced Power Management (APM). Select a
ASUS P7P55-M 2-21Power On By External Modems [Disabled]This allows either settings of [Enabled] or [Disabled] for powering up the computer when the ex
2-22 Chapter 2: BIOS information2.7.1 Boot Device Priority1st ~ xxth Boot DeviceThese items specify the boot device priority sequence from the availa
ASUS P7P55-M 2-23Wait For ‘F1’ If Error [Enabled]When set to Enabled, the system waits for the F1 key to be pressed when error occurs. Conguration op
2-24 Chapter 2: BIOS informationChange User PasswordSelect this item to set or change the user password. The User Password item on top of the screen s
ASUS P7P55-M 2-252.8 Tools menuThe Tools menu items allow you to congure options for special functions. Select an item then press <Enter> to d
2-26 Chapter 2: BIOS information2.8.3 ASUS EZ Flash 2Allows you to run ASUS EZ Flash 2. When you press <Enter>, a conrmation message appears.
ASUS P7P55-M 2-272.9 Exit menuThe Exit menu items allow you to load the optimal or failsafe default values for the BIOS items, and save or discard yo
2-28 Chapter 2: BIOS information
viiSafety informationElectrical safety• To prevent electric shock hazard, disconnect the power cable from the electric outlet before relocating the sy
viiiConventions used in this guideTo ensure that you perform certain tasks properly, take note of the following symbols used throughout this manual.
ixP7P55-M specications summary(continued on the next page)CPU LGA1156 socket for Intel® Core™ i7/ Core™ i5 processors Supports Intel® Turbo Boost Tec
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