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Asus P8Z77-M, P8Z77MPRO Active Processor Cores [All], Execute Disable Bit [Enabled], Hardware Prefetcher [Enabled], Limit CPUID Maximum [Disabled]

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Active Processor Cores [All]

Allows you to choose the number of CPU cores to activate in each processor package. Configuration options: [All] [1] [2] [3]

Limit CPUID Maximum [Disabled]

[Enabled]	Allows legacy operating systems to boot even without support for CPUs
	with extended CPUID functions.
[Disabled]	Disables this function.

Execute Disable Bit [Enabled]

[Enabled]	Enables the No-Execution Page Protection Technology.
[Disabled]	Forces the XD feature flag to always return to zero (0).

Intel Virtualization Technology [Disabled]

[Enabled]	Allows a hardware platform to run multiple operating systems separately
	and simultaneously, enabling one system to virtually function as several
	systems.
[Disabled]	Disables this function.

Hardware Prefetcher [Enabled]

[Enabled]	Allows a hardware platform to run multiple operating systems separately
	and simultaneously, enabling one system to virtually function as several
	systems.
[Disabled]	Disables this function.

Adjacent Cache Line Prefetch [Enabled]

[Enabled]	Allows a hardware platform to perform adjacent cache line prefetching.
[Disabled]	Disables this function.

CPU Power Management Configuration

CPU Ratio [Auto]

Allows you to set the ratio between the CPU Core Clock and the BCLK Frequency. Use <+> and <-> keys to adjust the ratio. The valid value ranges vary according to your CPU model.

Enhanced Intel SpeedStep Technology [Enabled]

Allows you to enable or disable the Enhanced Intel® SpeedStep Technology (EIST).
[Disabled]			The CPU runs at its default speed.
[Enabled}			The operating system controls the CPU speed.

Turbo Mode [Enabled]

Allows you to set the processor cores to run faster than the marked frequency in a specific condition.

Configuration options: [Enabled] [Disabled]

This item appears only when you set the EIST to [Enabled], and allows you to enable or disable the Intel® Turbo Mode Technology.

CPU C1E [Auto]
[Enabled]	Enables the C1E support function. This function must be enabled to enable or
	disable the Intel® Turbo Mode Technology.
[Disabled]	Disables the function.

CPU C3 Report [Auto]

Allows you to disable or enable the CPU C3 report to OS.

Chapter 2: BIOS information

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Contents

Page Page Chapter Product introduction BIOS information Electrical safety Operation safety How this guide is organized Conventions used in this guide Where to find more information Typography P8Z77-Mspecifications summary CPU Chipset Memory Expansion slots LAN Audio USB ASUS Exclusive Overclocking Page BIOS features Manageability Accessories Support DVD Form factor 1.1Before you proceed 1.2.1Placement direction 1.2.2Screw holes 1.2.3Motherboard layout 1.2.4Layout contents 1.3.1Installing the CPU Page 1.3.2CPU heatsink and fan assembly installation 1.4.1Overview 1.4.2Memory configurations DDR3-2200(O.C.)MHz capability DDR3-2133(O.C.)MHz capability DDR3-2000(O.C.)MHz capability DDR3-1866(O.C.)MHz capability DDR3-1600MHz capability DDR3-1600MHz capability (continued) DDR3-1333MHz capability DDR3-1333MHz capability (continued) 2.3.4 DIMM installation 1.5.1Installing an expansion card 1.5.2Configuring an expansion card 1.5.3PCI Express x1 slot 1.5.4PCI Express x16 slot 1.6Onboard switches 1.MemOK! switch 1.7USB BIOS Flashback 1.8Onboard LEDs 1.Standby power LED (SB_PWR) 2.DRAM LED (DRAM_LED) 1.9Jumpers Clear RTC RAM (3-pinCLRTC) Del 1.10.1Rear panel connectors 1.10.2Internal connectors 2.ATX power connectors (24-pinEATXPWR, 8-pinATX12V) 3.Intel® Z77 Serial ATA 6.0 Gb/s connectors (7-pinSATA6G_1/2 [gray]) 4.Intel® Z77 Serial ATA 3.0 Gb/s connectors (7-pin SATA3G_3–6[blue]) 5.CPU and chassis fan connectors (4-pinCPU_FAN, 4-pin CHA_FAN1-3) 6.TPM connector (20-1pin TPM) 7.Serial port connectors (10-1pin COM1) 8.USB 2.0 connectors (10-1pin USB910; USB1112; USB1314) 9.Intel® Z77 USB 3.0 connectors (20-1pin USB3_12) 10.Digital audio connector (4-1pin SPDIF_OUT) 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) 1.11.1Installing an operating system 1.11.2Support DVD information Page 2.1.1ASUS Update utility 2.1.2ASUS EZ Flash 2.1.3ASUS CrashFree BIOS 3 utility 2.1.4ASUS BIOS Updater Updating the BIOS file To update the BIOS file using BIOS Updater bupdater /pc /g 2.2BIOS setup program EZ Mode Exit Exit/Advanced Mode 2.2.1EZ Mode 2.2.2Advanced Mode Menu items Main Back button Submenu items Pop-upwindow 2.3.1System Language [English] 2.3.2System Date 2.3.3System Time 2.3.4Security Administrator Password Administrator Password Create New Password Enter Current Password User Password User Password 2.4Ai Tweaker menu 2.4.1Ai Overclock Tuner [Auto] 2.4.2OC Tuner 2.4.3DRAM Timing Control 2.4.4CPU Power Management 2.4.5DIGI+ VRM 2.4.6CPU Voltage [Offset Mode] Offset Mode Sign [+] CPU Voltage iGPU Voltage [Offset Mode] iGPU Offset Voltage [Auto] DRAM Voltage [Auto] 2.5.1CPU Configuration Active Processor Cores [All] Limit CPUID Maximum [Disabled] Execute Disable Bit [Enabled] Intel Virtualization Technology [Disabled] Hardware Prefetcher [Enabled] 2.5.2PCH Configuration 2.5.3SATA Configuration 2.5.4System Agent Configuration 2.5.5USB Configuration 2.5.6Onboard Devices Configuration 2.5.7APM 2.5.8Network stack [Disabled Link] 2.6Monitor menu CPU Temperature / MB Temperature [xxxºC/xxxºF] CPU / Chassis1/3 Fan Speed [xxxx RPM] or [Ignore] / [N/A] CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage CPU Q-FanControl [Enabled] CPU Fan Speed Low Limit [600 RPM] Chassis1/3 Q-FanControl [Enabled] Anti Surge Support [Enabled] 2.7Boot menu Bootup NumLock State [On] Full Screen Logo [Enabled] Post Report [5 sec] Wait for ‘F1’ If Error [Enabled] 2.7.1Boot Option Priorities 2.7.2Boot Override 2.8.1ASUS EZ Flash 2 Utility 2.8.2ASUS O.C. Profile 2.8.3ASUS SPD Information 2.9Exit menu Load Optimized Defaults Save Changes & Reset Discard Changes & Exit ASUS EZ Mode Federal Communications Commission Statement IC: Canadian Compliance Statement Canadian Department of Communications Statement VCCI: Japan Compliance Statement VCCI Class B Statement KC: Korea Warning Statement REACH DECLARATION OF CONFORMITY ASUSTeK COMPUTER INC ASUS COMPUTER INTERNATIONAL (America) ASUS COMPUTER GmbH (Germany and Austria)