ADLINK STC-15W04 - Manual (Page 36)

28 BIOS
Technology) and disable for other OS (OS not optimized for
Hyper-Threading Technology.
Execute Disable Bit
Execute Disable Bit 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.) Set this value to Disabled,
Enabled.
Limit CPUID Maximum
Disabled for Windows XP. Set this value to Disabled, Enabled.