Asus P8H77-M LE P8H77-M LE User's Manual - Page 60

Chapter 2: BIOS information

2-18

Hyper-threading [Enabled]

The Intel Hyper-Threading Technology allows a hyper-threading processor to appear as two

logical processors to the operating system, allowing the operating system to schedule two

threads or processes simultaneously.

[Enabled]

Two threads per activated core are enabled.

[Disabled]

Only one thread per activated core is enabled.

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]


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]


Adjacent Cache Line Prefetch [Enabled]

[Enabled]

Allows a hardware platform to perform adjacent cache line prefetching.

[Disabled]


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]

This item appears only when you set the

Enhanced Intel SpeedStep Technology

item to

[Enabled] and allows you to enable or disable the Intel

®

Turbo Mode Technology.

[Enabled]

Allows processor cores to run faster than marked frequency in specific condition.

[Disabled]


Section	Page
About this guide	6
Safety information	6
P8H77-M LE specifications summary	8
Chapter 1	11
Product introduction	11
1.1 Welcome!	11
1.2 Package contents	11
1.3 Special features	11
1.3.1 Product highlights	11
1.3.2 Innovative ASUS features	13
1.3.3 Other special features	15
1.4 Before you proceed	16
1.5 Motherboard overview	17
1.5.1 Placement direction	17
1.5.2 Screw holes	17
1.5.3 Motherboard layout	18
1.5.4 Layout contents	18
1.6 Central Processing Unit (CPU)	19
1.6.1 Installing the CPU	20
1.6.2 CPU heatsink and fan assembly installation	22
1.7 System memory	24
1.7.1 Overview	24
1.7.2 Memory configurations	24
1.7.3 Installing a DIMM	29
1.7.4 Removing a DIMM	29
1.8 Expansion slots	30
1.8.1 Installing an expansion card	30
1.8.2 Configuring an expansion card	30
1.8.3 PCI slot	30
1.8.4 PCI Express x1 slot	30
1.8.5 PCI Express x4 slot	30
1.8.6 PCI Express x16 slot	31
1.9 Jumpers	31
1.10 Connectors	32
1.10.1 Rear panel connectors	32
1.10.2 Internal connectors	34
1.11 Onboard switches	40
1.12 Onboard LEDs	41
1.13 Software support	42
1.13.1 Installing an operating system	42
1.13.2 Support DVD information	42
Chapter 2	43
BIOS information	43
2.1 Managing and updating your BIOS	43
2.1.1 ASUS Update utility	43
2.1.2 ASUS EZ Flash 2	44
2.1.3 ASUS CrashFree BIOS 3 utility	45
2.1.4 ASUS BIOS Updater	46
2.2 BIOS setup program	48
2.3 Main menu	52
2.3.1 System Language [English]	52
2.3.2 System Date [Day xx/xx/xxxx]	52
2.3.3 System Time [xx:xx:xx]	52
2.3.4 Security	52
2.4 Ai Tweaker menu	54
2.4.1 CPU bus speed : DRAM speed ratio mode [Auto]	54
2.4.2 Memory Frequency [Auto]	55
2.4.3 iGPU Max. Frequency [Auto]	55
2.4.4 EPU Power Saving Mode [Disabled]	55
2.4.5 GPU Boost [OK]	55
2.4.6 DRAM Timing Control	55
2.4.7 CPU Power Management	55
2.4.8 DIGI+ VRM	56
2.4.9 CPU Voltage [Offset Mode]	57
2.4.10 iGPU Voltage [Offset Mode]	58
2.4.11 DRAM Voltage [Auto]	58
2.4.12 VCCSA Voltage [Auto]	58
2.4.13 PCH Voltage [Auto]	58
2.4.14 CPU PLL Voltage [Auto]	59
2.5 Advanced menu	59
2.5.1 CPU Configuration	59
2.5.2 PCH Configuration	61
2.5.3 SATA Configuration	61
2.5.4 System Agent Configuration	62
2.5.5 USB Configuration	62
2.5.6 Onboard Devices Configuration	63
2.5.7 APM	63
2.5.8 Network Stack	64
2.6 Monitor menu	65
2.6.1 CPU Temperature / MB Temperature [xxxºC/xxxºF]	66
2.6.2 CPU / Chassis Fan Speed [xxxx RPM] or [Ignore] / [N/A]	66
2.6.3 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage	66
2.6.4 CPU Q-Fan Control [Enabled]	66
2.6.5 Chassis Q-Fan Control [Enabled]	67
2.6.6 Anti Surge Support [Enabled]	67
2.7 Boot menu	68
2.7.1 Bootup NumLock State [On]	68
2.7.2 Full Screen Logo [Enabled]	68
2.7.3 Wait for ‘F1’ If Error [Enabled]	68
2.7.4 Option ROM Messages [Force BIOS]	69
2.7.5 Setup Mode [EZ Mode]	69
2.7.6 UEFI/Legacy Boot [Enabled both UEFI and Legacy]	69
2.7.7 PCI ROM Priority [Legacy ROM]	69
2.7.8 Boot Option Priorities	69
2.7.9 Boot Override	69
2.8 Tools menu	70
2.8.1 ASUS EZ Flash 2 Utility	70
2.8.2 ASUS O.C. Profile	70
2.8.3 ASUS SPD Information	70
2.9 Exit menu	71
Appendices	73

Asus P8H77-M LE P8H77-M LE User's Manual - Page 60

Adjacent Cache Line Prefetch [Enabled] - processor support

Page 60 highlights