User manual

17 ARK-DS762 User Manual
Chapter 3 BIOS Settings
 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 3.4 CPU Setup screen