>>CPU Manufacturer: GenuineIntel
>>CPU Name: Intel(R) Core(TM)2 Quad CPU Q8400 @ 2.66GHz
>>Number of Physical Cores: 4
>>Number of Logical Processors: 4
>>HyperThreading is DISABLED or unavailable on CPU
>>
>>
>>My Processor doesn't support HT
>
>Hi Sharath,
>I use a core2quad 2.88 and it definetely supports HT. However, you will have to activate it explicitly in BIOS!

Atually, the Q8400 does not support HT.

http://ark.intel.com/Product.aspx?id=38512