Hyper-threading is enabled but not working? I7 920

[jonezh]

Specs
I7 920 D0 4.0ghz
Asus p6x58d-e
Mushkin Redline 1600 6-8-6-24

I built my computer a couple of days ago, and task manager showed that 8 cores were running. But now all of a sudden it stopped working. Dunno why. Its enabled in the bios. It was working both before and after the overclock.

Help!

 

[jonezh]

oh yeah btw. I cleared the CMOS, it didnt help and im running win7 64.

 

[Emperus]

Check with device manager|processor.. Does it shows 8 processors.?

 

[LePhuronn]

What's stopped working? The whole system? Task Manager just showing 4 cores? You need to give us more information.

Why don't you download and run Prime95 and see how many workers it fires off - if you get 8 then Hyperthreading is enabled as you have 1 worker per thread. If you only get 4 then Hyperthreading is disabled or not recognised and you're getting 1 worker per core.

 

[zannesuz]

im having the same problem when i first booted my os and mother board drivers i had 8 in the task manager and now all of a sudden even tho its activated in the bios it only shows 4 cores in the task manager im running vista 64 ultimate with 2.6ghz i7