Asus Z8PH-D12/IFB - Manual (Page 74)

4-18 Chapter 4: BIOS setup
Execute-Disable Bit Capability [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]
DCU Mode [32KB 8-way without]
Allows you to select the mode for the Data Cache.
Configuration options: [32KB 8-way without ECC] [16KB 4-way with ECC]
DCA Prefetch Delay [32]
Allows you to select the time delay in bus clocks from snoop to prefetch.
Configuration options: [8] [16] [24] [32] [40]—[104] [112] [120]
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]
Intel(R) C-STATE Tech [Enabled]
The Intel ® C-State Technology allows the CPU to save more power under idle
mode. Enable this item only when you install a C-State Technology-supported
CPU. Configuration options: [Disabled] [Enabled]
The following items appear only when you set the Intel(R) C-STATE Tech
item to [Enabled].