Execute disable bit, Limit cpuid maximum – ADLINK STC-15W04 User Manual

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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.