Asus P7P55D-E LX User Manual

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Contents
Chapter 2: BIOS setup 2-1
2.1 Managing and updating your BIOS ............................................ 2-1
2.1.1 ASUS Update .................................................................. 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
2.2 BIOS setup program .................................................................... 2-7
Entering BIOS Setup at startup ...................................................... 2-7
Entering BIOS Setup after POST ................................................... 2-7
2.3 Main menu .................................................................................... 2-7
2.3.1 SATA 1-6 ......................................................................... 2-8
2.3.2 Storage Configuration ..................................................... 2-8
2.3.3 AHCI Configuration ......................................................... 2-9
2.3.4 System Information ......................................................... 2-9
2.4 Ai Tweaker menu ........................................................................ 2-10
2.4.1 CPU Level Up .............................................................. 2-10
2.4.2 Ai Overclock Tuner ........................................................2-11
2.4.3 CPU Ratio Setting ........................................................ 2-12
2.4.4 Intel(R) SpeedStep(TM) Tech ...................................... 2-12
2.4.5 Intel(R) TurboMode Tech .............................................. 2-12
2.4.6 Xtreme Phase Full Power Mode .................................. 2-12
2.4.7 DRAM Frequency ........................................................ 2-12
2.4.8 QPI Frequency ............................................................. 2-12
2.4.9 DRAM Timing Control .................................................. 2-13
2.4.10 CPU Differential Amplitude ........................................... 2-14
2.4.11 CPU Clock Skew .......................................................... 2-14
2.4.12 CPU Voltage Mode ..................................................... 2-14
2.4.13 IMC Voltage ................................................................ 2-14
2.4.14 DRAM Voltage ............................................................ 2-14
2.4.15 CPU PLL Voltage ......................................................... 2-14
2.4.16 PCH Voltage ................................................................ 2-15
2.4.17 Load-Line Calibration ................................................... 2-15
2.4.18 CPU Spread Spectrum ................................................ 2-15
2.4.19 PCIE Spread Spectrum ................................................ 2-15

Asus P7P55D-E LX Specifications

General

Form Factor	ATX
Chipset	Intel P55
CPU Socket	LGA 1156
Memory Type	DDR3
Maximum Memory	16GB
PCI Express x16 Slots	1
PCI Express x1 Slots	2
PCI Slots	3
SATA 3Gb/s Ports	6
SATA 6Gb/s Ports	2
USB 2.0 Ports	12
LAN	Realtek 8112L Gigabit LAN controller
Memory Slots	4
Memory Standard	DDR3 2200(O.C.)/1600/1333/1066
Audio	Realtek ALC887 8-Channel High Definition Audio CODEC