BIOS Advanced Menu Selections
BIOS Advanced Menu Processor Configuration
Options
The following table lists the BIOS Advanced Menu Processor Configuration options.
Setup Options Options Defaults Description
Hyper-threading ALL Disabled/Enabled Enabled Use to enable Hyper Threading.
When enabled, two threads
are available per enabled core.
When disabled, only one thread
per enabled core is available.
Active Processor Cores A minimum of one up to the
maximum number of cores
available in the processor
package.
All The number of cores to enable in
each processor package.
SNC Disable/Enable/Auto Disable Enable, disable, or set SNC to
auto.
Hardware Prefetcher Disabled/Enabled Enabled Enable the mid-level cache
(MLC) streamer prefetcher
(MSR 1A4h bit [0]).
Adjacent Cache Prefetcher Disabled/Enabled Enabled Enable the mid-level cache
(MLC) streamer prefetcher
(MSR 1A4h bit [1]).
DCU Streamer Prefetcher Disabled/Enabled Enabled Enable DCU streamer
prefetcher, which is a L1 data
cache prefetcher (MSR 1A4h
[2]).
DCP IP Prefetcher Disabled/Enabled Enabled Enable DCU IP prefetcher,
which is a L1 data cache
prefetcher (MSR 1A4h [3]).
Intel Virtualization Technology Disabled/Enabled Enabled When enabled, a Virtual
Machine Manager (VMM) can
utilize the additional hardware
capabilities provided by Intel
Virtualization Technology.
Stale AtoS Disabled/Enabled/Auto Disabled Enable or disable stale A to S
Dir optimization.
LLC dead line alloc Disabled/Enabled/Auto Enabled Enable to opportunistically fill
dead lines in LLC.
XPT Prefetch Disable/Enable Enable Enable or disable XPT Prefetch.
BIOS Setup Utility Menu Options 271