Hi,
Usually in the CMOS Settings.

>PMFJI - Neil, where do you disable the HT? I havent looked, just thought I would ask.
>
>>Hi,
>>Google "hyperthreading", there are pages and pages of reported problems. If there isn't a BIOS upgrade or Main Board driver update, just disable it, end of problem.
>>
>>BTW the problem only occurs during intensive operations, in the photoshop scenario it was when doing intensive rendering of an object with the mouse.
>>
>>>Do you have any details on this?
>>>
>>>Thanks!!
>>>
>>>>Hi,
>>>>It is an old bug with HT, check for a BIOS upgrade to fix it. Photoshop also has the same problem with it.
>>>>
>>>>UPDATE: If you run task manager you will see a second thread spawned for the app then the second thread dies, causing the hang.
>>>>
>>>>>We have an application that is hanging on a system with a hyperthreaded processor. This application runs fine if you turn off the hyperthreading.
>>>>>
>>>>>When I say "hanging", I mean just a complete lockup. It freezes the whole system... does not crash - you have to turn off the machine.
>>>>>
>>>>>Has anyone experienced this?