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Asus P7H55 USB3 User Guide - Page 56

IntelR SpeedStep TM Tech [Enabled]

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Max CPUID Value Limit [Disabled] [Enabled] Allows legacy operating systems to boot even without support for CPUs with extended CPUID functions. [Disabled] Disables this function. Intel(R) Virtualization Tech [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. CPU TM function [Enabled] [Enabled] Enables the overheated CPU to throttle its clock speed to cool down. [Disabled] Disables this function. Execute-Disable Bit Capability [Enabled] [Enabled] Enables the No-Execution Page Protection Technology. [Disabled] Forces the XD feature flag to always return to zero (0). Intel(R) HT Technology [Enabled] [Enabled] Enables the Intel Hyper-Threading Technology. [Disabled] Only one thread per activated CPU core is enabled. Active Processor Cores [All] [All] Activate all CPU cores in the processor package. [1] Activate only 1 CPU core in the processor package. [2] Activate 2 CPU cores in the processor package. A20M [Disabled] [Enabled] Legacy OSes and APs may need this function enabled. [Disabled] Disables this function. Intel(R) SpeedStep (TM) Tech [Enabled] [Enabled] The CPU speed is controlled by the operating system. [Disabled] The CPU runs at its default speed. Intel(R) TurboMode tech [Enabled] [Enabled] Allows processor cores to run faster than marked frequency in specific condition. [Disabled] Disables this function. Intel(R) C-STATE Tech [Enabled] [Enabled] Allows the CPU to save more power under idle mode. Enable this item only when you install a C-State Technology-supported CPU. [Disabled] Disables this function. 2-16 Chapter 2: BIOS information

Section	Page
P7H55/USB3 specifications summary	9
Chapter 1: Product introduction	13
1.1 Before you proceed	13
1.2 Motherboard overview	14
1.2.1 Motherboard layout	14
1.2.2 Layout contents	14
1.3 Central Processing Unit (CPU)	15
1.3.1 Installing the CPU	15
1.3.2 Installing the CPU heatsink and fan	18
1.3.3 Uninstalling the CPU heatsink and fan	19
1.4 System memory	20
1.4.1 Overview	20
1.4.2 Memory configurations	21
1.4.3 Installing a DIMM	28
1.4.4 Removing a DIMM	28
1.5 Expansion slot	29
1.5.1 Installing an expansion card	29
1.5.2 Configuring an expansion card	29
1.5.3 PCI slots	29
1.5.4 PCI Express x1 slots	29
1.5.5 PCI Express 2.0 x16 slots	29
1.6 Jumpers	30
1.7 Onboard switches	31
1.8 Connectors	33
1.8.1 Rear panel connectors	33
1.8.2 Internal connectors	34
1.9 Installing an operating system	40
1.10 Support DVD information	40
1.10.1 Running the support DVD	40
Chapter 2: BIOS setup	41
2.1 Managing and updating your BIOS	41
2.1.1 ASUS Update	41
2.1.2 ASUS EZ Flash 2	42
2.1.3 ASUS CrashFree BIOS 3 utility	43
2.2 BIOS setup program	44
2.3 Main menu	44
2.3.1 SATA 1-6	45
2.3.2 Storage Configuration	46
2.3.3 AHCI Configuration	46
2.3.4 System Information	47
2.4 Ai Tweaker menu	48
2.4.1 CPU Level Up [Auto]	48
2.4.2 Ai Overclock Tuner [Auto]	49
2.4.3 CPU Ratio Setting [Auto]	49
2.4.4 Intel(R) SpeedStep(TM) Tech [Enabled]	50
2.4.5 Intel(R) TurboMode Tech [Enabled]	50
2.4.6 Xtreme Phase Full Power Mode [Auto]	50
2.4.7 DRAM Frequency [Auto]	50
2.4.8 QPI Frequency [Auto]	50
2.4.9 ASUS/3rd Party UI Priority [ASUS Utility]	50
2.4.10 OC Tuner [Turbo Profile]	51
2.4.11 Start auto tuning	51
2.4.12 DRAM Timing Control [Auto]	51
2.4.13 CPU Differential Amplitude [Auto]	53
2.4.14 CPU Clock Skew [Auto]	53
2.4.15 CPU Voltage Mode [Offset]	53
2.4.16 IMC Voltage [Auto]	53
2.4.17 DRAM Voltage [Auto]	53
2.4.18 CPU PLL Voltage [Auto]	54
2.4.19 PCH Voltage [Auto]	54
2.4.20 DRAM DATA REF Voltage on CHA/B [Auto]	54
2.4.21 Load-Line Calibration [Auto]	54
2.4.22 CPU Spread Spectrum [Auto]	54
2.4.23 PCIE Spread Spectrum [Auto]	54
2.5 Advanced menu	55
2.5.1 CPU Configuration	55
2.5.2 Uncore Configuration	57
2.5.3 Onboard Device Configuration	57
2.5.4 USB Configuration	57
2.5.5 PCIPnP	58
2.5.6 Intel VT-d Configuration [Disabled]	58
2.6 Power menu	59
2.6.1 Suspend Mode [Auto]	59
2.6.2 Repost Video on S3 Resume [No]	59
2.6.3 ACPI 2.0 Support [Disabled]	59
2.6.4 ACPI APIC Support [Enabled]	59
2.6.5 EuP Ready [Disabled]	59
2.6.6 APM Configuration	60
2.6.7 Hardware Monitor	61
2.7 Boot menu	62
2.7.1 Boot Device Priority	62
2.7.2 Boot Settings Configuration	62
2.7.3 Security	63
2.8 Tools menu	65
2.8.1 ASUS O.C. Profile	65
2.8.2 AI NET 2	65
2.8.3 ASUS EZ Flash 2	66
2.8.4 Express Gate [Auto]	66