User manual

31 PCA-6011 User Manual
Chapter 3
A
MI BIOS Setup
You may choose to enable or disable it.
 Hardware Prefetcher
Hardware Prefetcher is a technique that fetches instructions and/or data from
memory into the CPU cache memory well before the CPU needs it, so that it can
improve the load-to-use latency. You may choose to enable or disable it.
 Adjacent Cache Line Prefetch
The Adjacent Cache-Line Prefetch mechanism, like automatic hardware
prefetch, operates without programmer intervention. When enabled through the
BIOS, two 64-byte cache lines are fetched into a 128-byte sector, regardless of
whether the additional cache line has been requested or not. You may choose to
enable or disable it.
 Max CPUID Value Limit
This is disabled for Windows XP.
 Intel® Virtualization Technology
This feature is used to enable or disable the Intel Virtualization Technology (IVT)
extension. It allows multiple operating systems to run simultaneously on the
same system. It does this by creating virtual machines, each running its own x86
operating system.
 Execute Disable Bit capability
This item specifies the Execute Disable Bit Feature. The settings are Enabled
and Disabled. The Optimal and Fail-Safe default setting is Enabled. If Disabled
is selected, the BIOS forces the XD feature flag to always return to 0.
 Core Multi-Processing
You may choose to enable or disable it. When this option disabled, BIOS dis-
ables one execution core.
3.2.2.2 IDE Configuration
Figure 3.5 IDE Configuration
 ATA/IDE Configuration
This can be configured as Disabled, or Enhanced. If enhanced mode is turned
on, primary, secondary and third IDE can be configured.
 Hard Disk Write Protect