GIGABYTE GA-8I865PEM-775 - Manual (Page 33)

BIOS Setup - 33 -
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CPU Hyper-Threading
Enabled Enables CPU Hyper Threading Feature. Please note that this feature is only working
for operating system with multi processors mode supported. (Default value)
Disabled Disables CPU Hyper Threading.
Limit CPUID Max. to 3
Enabled Limit CPUID Maximum value to 3 when use older OS like NT4. (Default value)
Disabled Disables CPUID Limit for windows XP.
No-Execute Memory Protect (Note)
Enabled Enables No-Execute Memory Protect function.
Disabled Disables No-Execute Memory Protect function. (Default value)
CPU Enhanced Halt (C1E) (Note)
Enabled Enables CPU Enhanced Halt (C1E) function.
Disabled Disables CPU Enhanced Halt (C1E) function. (Default value)
CPU Thermal Monitor 2 (TM2) (Note)
Enabled Enables CPU Thermal Monitor 2 (TM2) function.
Disabled Disables CPU Thermal Monitor 2 (TM2) function. (Default value)
(Note) This item will show up when you install a processor which supports this function.