User's Manual
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3.2.2 AdvancedBIOSFeaturesSetup
SelecttheAdvancedtabfromtheDS‐561setupscreentoentertheAdvancedBIOSSetup
screen.Youcanselectanyoftheitemsintheleftframeofthescreen,suchasCPU
configuration,togotothesubmenuforthatitem.YoucandisplayanAdvancedBIOSSetup
optionbyhighlightingitusingthe<Arrow>keys.AllAdvancedBIOSSetupoptionsare
describedinthissection.TheAdvancedBIOSSetupscreensareshownbelow.Thesubmenus
aredescribedonthefollowingpages.
Figure.20AdvancedBIOSFeaturesSetupScreen
ACPI Settings: Thissectionallowsyoutocontrolhardwaremonitoringandpower
management
CPU Configuration:
Hyper‐threading:EnabledforWindowsXPandLinux(OSoptimizedforHyper‐Threading
Technology)andDisabledforotherOS(OSnotoptimizedforHyper‐Threading
Technology).Whendisabled,onlyonethreadperenabled‐coreisenabled.
ActiveProcessorCores:Numberofcorestobeenabledineachprocessorpackage.
LimitCPUIDMaximum:DisabledforWindowsXP.
Execute Disable Bit:
Itcanpreventcertainclassesofmaliciousbufferoverflowattackswhencombinedwitha
supportingOS(WindowsServer2003Sp1,WindowsXPSP2,SuSELinux9.2RedHatEnterprise
3Update3.).
IntelVirtualizationTechnology:Whenenabled,aVMMcanutilizetheadditional
hardwarecapabilitiesprovidedbyVanderpoolTechnology.
HardwarePrefetcher:Toturnon/offtheMidLevelCache(L2)streamerprefetcher.
AdjacentCacheLinePrefetch:Toturnon/offprefetchingofadjacentcachelines