Advanced Bios Features Setup - Advantech ARK-DS262 User Manual

3.2.2

Advanced BIOS Features Setup

Select the Advanced tab from the ARK-DS262 setup screen to enter the Advanced
BIOS Setup screen. You can select any of the items in the left frame of the screen,
such as CPU configuration, to go to the sub menu for that item. You can display an
Advanced BIOS Setup option by highlighting it using the <Arrow> keys. All Advanced
BIOS Setup options are described in this section. The Advanced BIOS Setup
screens are shown below. The sub menus are described on the following pages.
ACPI Settings: This section allows you to control hardware monitoring and
power management.
CPU Configuration:
– Hyper-threading: Enabled for Windows XP and Linux (OS optimized for
Hyper-Threading Technology) and Disabled for other OS (OS not optimized
for Hyper-Threading Technology). When disabled, only one thread per
enabled-core is enabled.
– Active Processor Cores: Number of cores to be enabled in each processor
package.
– Limit CPUID Maximum: Disabled for Windows XP.
– Execute Disable Bit: It can prevent certain classes of malicious buffer over-
flow attacks when combined with a supporting OS (Windows Server 2003
Sp1, Windows XP SP2, SuSE Linux 9.2 RedHat Enterprise 3 Update 3.).
– Intel Virtualization Technology: When enabled, a VMM can utilize the addi-
tional hardware capabilities provided by Vander pool Technology.
– Hardware Prefetcher: To turn on/off the Mid Level Cache (L2) streamer
prefetcher.
– Adjacent Cache Line Prefetch: To turn on/off prefetching of adjacent cache
lines
Figure 3.2 Advanced BIOS Features Setup Screen
15 ARK-DS262 User Manual