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Hyper-threading is enabled but not working? I7 920

  • CPUs
  • Computer
  • Intel i7
  • Task Manager
Last response: in CPUs
July 6, 2010 9:39:46 PM

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.


More about : hyper threading enabled working 920

July 6, 2010 10:04:55 PM

oh yeah btw. I cleared the CMOS, it didnt help and im running win7 64.
a c 80 à CPUs
July 7, 2010 2:03:17 AM

Check with device manager|processor.. Does it shows 8 processors.?
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a b à CPUs
July 7, 2010 3:39:46 PM

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.
January 1, 2011 6:42:12 PM

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