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Asus P6T SE A20M [Disabled], C1E Support [Enabled], CPU Ratio Setting [Auto], CPU TM Function [Enabled], Execute-DisableBit [Enabled], Active Processor Cores [All]

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CPU Ratio Setting [Auto]

Allows you to adjust the ratio between CPU Core Clock and BCLK Frequency. Use the <+> and <-> keys to adjust the value.

Configuration options: [Auto] [12.0] [13.0] [14.0] [15.0] [16.0] [17.0] [18.0] [19.0] [20.0]

C1E Support [Enabled]

Allows you to enable or disable Enhanced Halt State support.

Configuration options: [Disabled] [Enabled]

Hardware Prefetcher [Enabled]

Allows you to enable or disable the Hardware Prefetcher function.

Configuration options: [Disabled] [Enabled]

Adjacent Cache Line Prefetch [Enabled]

Allows you to enable or disable the Adjacent Cache Line Prefetch function. Configuration options: [Disabled] [Enabled]

Intel(R) Virtualization Tech [Enabled]

The Intel® Virtualization Technology allows a hardware platform to run multiple operating systems separately and simultaneously, enabling one system to virtually function as several systems. Configuration options: [Disabled] [Enabled]

CPU TM Function [Enabled]

This function enables the overheated CPU to throttle the clock speed to cool down. Configuration options: [Disabled] [Enabled]

Execute-Disable Bit [Enabled]

Allows you to enable or disable the No-Execution Page Protection Technology. Setting this item to [Disabled] forces the XD feature flag to always return to zero (0).

Configuration options: [Disabled] [Enabled]

Intel(R) HT Technology [Enabled]

Allows you to enable or disable the Intel Hyper-Threading Technology function. When disabled, only one thread per activated core is enabled.

Configuration options: [Enabled] [Disabled]

Active Processor Cores [All]

Allows you to choose the number of CPU cores to activate in each processor package. Configuration options: [All] [1] [2]

A20M [Disabled]

Legacy OSes and APs may need A20M enabled. Configuration options: [Disabled] [Enabled]

Intel(R) SpeedStep (TM) Tech [Enabled]

When set to [Disabled], the CPU runs at its default speed. When set to [Enabled], the CPU speed is controlled by the operating system. Configuration options: [Disabled] [Enabled]

3-20	Chapter 3: BIOS setup

Contents

Page Page Chapter 1: Product introduction Chapter 2: Hardware information Chapter 3: BIOS setup Chapter 4: Software support Chapter 5: ATI® CrossFireX™ technology support Federal Communications Commission Statement Canadian Department of Communications Statement Electrical safety Operation safety How this guide is organized Where to find more information Conventions used in this guide Typography Page Page Page Page Chapter 1.3.1Product highlights 1.3.2ASUS Unique features ASUS 8+2 Phase Power Design ASUS Express Gate ASUS Power Saving Solution ASUS EPU-6Engine ASUS Quiet Thermal Solution Fanless Design - Stack Cool Fan Xpert ASUS Crystal Sound Noise Filter ASUS EZ DIY ASUS EZ Flash ASUS MyLogo2™ ASUS Multi-languageBIOS Page Power-onswitch 2.2.1Motherboard layout 2.2.2Layout contents 2.2.3Placement direction 2.2.4Screw holes 2.3.1Installing the CPU Page Page 2.3.2Installing the CPU heatsink and fan 2.3.3Uninstalling the CPU heatsink and fan 2.4.1Overview 2.4.2Memory configurations Qualified Vendors Lists (QVL) DDR3-1800MHzcapability Qualified Vendors Lists (QVL) DDR3-1600MHzcapability Qualified Vendors Lists (QVL) DDR3-1600MHzcapability (continued) Qualified Vendors Lists (QVL) DDR3-1333MHzcapability Qualified Vendors Lists (QVL) DDR3-1333MHzcapability (continued) Qualified Vendors Lists (QVL) DDR3-1067MHzcapability Qualified Vendors Lists (QVL) DDR3-1067MHzcapability (continued) 2.4.3Installing a DIMM 2.4.4Removing a DIMM 2.5.1Installing an expansion card 2.5.2Configuring an expansion card 2.5.3Interrupt assignments 2.5.4PCI slots 2.5.5PCI Express x1 slot 2.5.6PCI Express 2.0 x16 slots VGA configuration PCI Express operating mode PCIe x16_1 PCIe x16_2 PCIe x16_3 1.Clear RTC RAM (3-pinCLRTC) CPU / DRAM Bus / QPI DRAM overvoltage setting OV_CPU OV_DRAM_BUS OV_QPI_DRAM 2.7.1Rear panel connectors 2.7.2Audio I/O connections Page Page 2.7.3Internal connectors 3.IDE connector (40-1pin PRI_IDE) Mode of device(s) 4.ICH10R Serial ATA connectors (7-pinSATA 1-6) 5.USB connectors (10-1pin USB 78; USB910; USB1112) 6.Optical drive audio connector (4-pinCD) 7.IEEE 1394a port connector (10-1pin IE1394_2) 8.Chassis intrusion connector (4-1pin CHASSIS) 9.CPU, chassis, and power fan connectors (4-pinCPU_FAN; 3-pin CHA_FAN1–2; 3-pinPWR_FAN) 10.ATX power connectors (24-pinEATXPWR; 8-pinEATX12V) 11.System panel connector (20-8pin PANEL) •System power LED (2-pinPLED) •Hard disk drive activity LED (2-pinIDE_LED) •System warning speaker (4-pinSPEAKER) •ATX power button/soft-offbutton (2-pinPWRSW) 12.ASUS Q-Connector(system panel) BIOS Beep 3.2Updating BIOS ASUS Update: ASUS EZ Flash 2: ASUS CrashFree BIOS utility: 3.2.1ASUS Update utility Auto Select. Click Next 2.Select Update BIOS from a file from the dropdown menu, then click Next 3.2.2ASUS EZ Flash 2 utility 3.2.3ASUS CrashFree BIOS utility 3.3.1BIOS menu screen 3.3.2Menu bar 3.3.3Navigation keys 3.3.4Menu items 3.3.5Submenu items 3.3.6Configuration fields 3.3.7Pop-upwindow 3.4.1SATA Type [Auto] LBA/Large Mode [Auto] Block (Multi-SectorTransfer) M [Auto] PIO Mode [Auto] DMA Mode [Auto] 3.4.2Storage Configuration 3.4.3AHCI Configuration 3.4.4System Information 3.5.1Ai Overclock Tuner [Auto] 3.5.2CPU Ratio Setting [Auto] 3.5.3Intel(R) SpeedStep(TM) Tech [Enabled] 3.5.4Intel(R) Turbo Mode Tech [Enabled] 3.5.5DRAM Frequency [Auto] 3.5.6.DRAM Timing Control [Auto] 2nd Information: 1N-53-0-0 3rd Information: 3.5.7CPU Voltage [Auto] 3.5.8CPU PLL Voltage [Auto] 3.5.9QPI/DRAM Core Voltage [Auto] 3.5.10IOH Voltage [Auto] 3.5.11IOH PCIE Voltage [Auto] 3.5.12ICH Voltage [Auto] 3.5.13ICH PCIE Voltage [Auto] 3.5.14DRAM Bus Voltage [Auto] 3.5.15DRAM DATA REF Voltage on CHA/B/C [Auto] 3.5.16DRAM CTRL REF Voltage on CHA/B/C [Auto] 3.5.17Load-LineCalibration [Auto] 3.5.18CPU Differential Amplitude [Auto] 3.5.19CPU Clock Skew [Auto] 3.5.20CPU Spread Spectrum [Auto] 3.6.1CPU Configuration CPU Ratio Setting [Auto] C1E Support [Enabled] Hardware Prefetcher [Enabled] Adjacent Cache Line Prefetch [Enabled] Intel(R) Virtualization Tech [Enabled] 3.6.2Chipset 3.6.3Onboard Device Configuration 3.6.4USB Configuration 3.6.5PCIPnP 3.7.1Suspend Mode [Auto] 3.7.2Repost Video on S3 Resume [No] 3.7.3ACPI 2.0 Support [Disabled] 3.7.4ACPI APIC Support [Enabled] 3.7.5APM Configuration 3.7.6Hardware Monitor 3.8.1Boot Device Priority 3.8.2Boot Settings Configuration 3.8.3Security Change Supervisor Password Supervisor Password Not Installed Installed Change Supervisor Password User Access Level [Full Access] Change User Password Change User Password Clear User Password Password Check [Setup] 3.9.1ASUS EZ Flash 3.9.2Express Gate 3.9.3ASUS O.C. Profile 3.9.4AI NET Exit & Save Changes Exit & Discard Changes Discard Changes Load Setup Defaults Exit & Save Changes 4.2.1Running the support DVD 4.2.2Obtaining the software manuals 4.3.1ASUS PC Probe 4.3.2ASUS AI Suite 4.3.3ASUS Fan Xpert 4.3.4ASUS EPU-6Engine 4.3.5ASUS TurboV 4.3.6ASUS Express Gate 4.3.7Audio configurations 4.4.1RAID definitions 4.4.2Installing Serial ATA hard disks 4.4.3Setting the RAID item in BIOS 4.4.4Intel® Matrix Storage Manager option ROM utility Creating a RAID set 1. Create RAID Volume SELECT DISKS Create Volume CREATE VOLUME Deleting a RAID set 2. Delete RAID Volume DELETE VOLUME Exiting the Intel® Matrix Storage Manager 4. Exit 4.5.1Creating a RAID driver disk without entering the OS 4.5.2Creating a RAID driver disk in Windows® Page 5.1.1Requirements 5.1.2Before you begin 5.2.1Dual CrossFireX installation 5.2.2Triple CrossFireX installation 5.3.1Installing the device drivers 5.3.2Enabling the ATI® CrossFireX™ technology Enabling Dual CrossFireX technology Configure 3.Select Enable CrossFireX Apply Enabling Triple CrossFireX technology