Avalue EPI-QM67 - Manual (Page 46)

EPI-QM67
46 EPI-QM67 User ’s Manual
3.6.2.5 CPU Configuration
Use the CPU configuration menu to view detailed CPU specification and configure the
CPU.
Item Options Description
Hyper-threading
Disabled
Enabled
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
All
1/2/3
Number of cores to enable in each processor
package
Limit CPUID Maximum
Disabled
Enabled
Disabled for Windows XP
Execute Disable Bit
XD can prevent certain classes of malicious
buffer overflow attacks when combined with a
supporting OS (Windows Server 2003 SP1,
Windows XP SP2, SuSE Linux 9.2, RedHat
Enterprise 3 Update 3.)
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
Intel Virtualization Technology
When enabled, a VMM can utilize the
additional hardware capabilities provided by
Vanderpool technology.
Local x2APIC
Enables Local x2APIC. Some OSes do not
support this function
Long duration power limit Long duration power limit in Watts
Long duration maintained Time window which the long duration power is maintained
Short duration power limit Short duration power limit in Watts
1-2-3-4-5-6-7-8-Core Ratio Limit This limit is for 1 core active. 0 means using the factory-configured value.