Only 2 Cores in Task manager Q6600

Is there a patch so windows knows and reports all four cores for my Q6600 in windows xp mce?
680i Sli - Detects Correct Chip
Windows XP - Reports two cores, but correct chip

Thanks in advance.
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bergstrom_davinAsked:
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maninblac1Connect With a Mentor Commented:
If the problem isn't fixed by that, try this, though i'm not sure how "cosmetic" it is versus functional.

Type msconfig -> select the Boot tab -> hit the "advanced options" button -> you'll see a "number of processors" check box, hit that -> select 4 from the drop down box if available and hit okay.

If 4 is not available from the box, windows firmly believes your processor only has 2 cores.  My Q6600(G0) shows 4 with Vista Business x64.

What you might do is venture into your bios and see if there is a hyperthreading option, if it's on, disable it, i would presume the Q6600 would force that be disabled, but who knows.
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maninblac1Commented:
Have you updated your BIOS and chipset drivers?  If your bios doesn't have the microcode for that CPU who knows what could happen.  XP gets information about your system from the BIOS, so XP is only reporting back what it gets from your system.

There is this patch, but windows update should have already caught it.
http://support.microsoft.com/kb/936357/en-us

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and235100Commented:
This is really only a cosmetic difference.
Unless you are using applications that can make use of 4 cores - then this is irrelevant in anycase.
As has been said, you can check the bios - but it really doesn't matter.
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bergstrom_davinAuthor Commented:
Looks like with more research my new Dx10 Card is really using DX10. So upgrading to vista. Any particular version I should go with?
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maninblac1Commented:
Home Premium or Ultimate, they are the only ones with Media center, since i presume you use it.  You can get OEM ultimate from newegg for $175, or Home premium for $105.

64bit versus 32bit is your own preference (and driver support), but make sure you have at least 2GB of memory.
Check your needs here
http://www.microsoft.com/windows/products/windowsvista/editions/choose.mspx
or here
http://techgage.com/article/windows_vista_version_comparison/
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bergstrom_davinAuthor Commented:
I have upgraded to Home Premium. Still in the task manager only 2 cores show. Any ideas?
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maninblac1Commented:
At this point, it must be a hardware issue.  What motherboard do you have and it's BIOS version.

As well in a very very very rare case, you might have 2 dead cores on your processor.
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bergstrom_davinAuthor Commented:
I installed the NF68_P31.bin
http://evga.com/forums/tm.asp?m=124101

The board is the first version. EVGA 680i SLI
http://www.evga.com/products/moreinfo.asp?pn=122-CK-NF68-T1&family=400

Thanks for working with me on this maninblac1.
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bergstrom_davinAuthor Commented:
Thank you, I will try that as soon as I get home.
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bergstrom_davinAuthor Commented:
Dumbest thing ever. This board did not automatically turn on the multiple cores. After I flipped each one in the bios and a few reboots, wam 4 threads. maninblac1 You Rock!
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