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I have a server with an Intel Xeon E3-1240 3.3Ghz processor. According to intel's website this processor has 4 cores and 8 threads, however in Windows Task Manager there are only 4 showing.

The server has Windows Server 2008 R2 Standard.

Why would there only be 4 threads when it is listed by intel as having 8?

This is the processor: http://ark.intel.com/products/52273/Intel-Xeon-Processor-E3-1240-8M-Cache-3_30-GHz

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    I'd just check your BIOS version is up to date, that Hyperthreading is enabled in BIOS and that your Windows Updates are good.
    – Chopper3
    May 5, 2014 at 7:29
  • The # of Threads refers to Hyperthreading. Is Hyperthreading enabled?
    – joeqwerty
    May 5, 2014 at 13:54
  • There was a bios setting which was not enabled - have changed it and there are now 8 threads/cores in the task manager. Thanks!
    – sa555
    May 6, 2014 at 7:12

1 Answer 1

Reset to default
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I think you are confused by the Task Manager. Task Manager is showing you cores, therefore it is right as your processor has 4 cores.

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