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Thread: Vista only recognizes 2/4 cores

  1. #1
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    Vista only recognizes 2/4 cores

    Thought i'd post this here to see if anyone has any ideas...


    I got a new rig up and running. DFI P35 T2R, Q6600, 4Gb Viper 1066, Etc. Vista will not recognize all four cores, Just 2. CPUZ is the same, along with Device Manager. Multi core is enabled in Bios, As is virtualization.

    Any ideas?

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  2. #2
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    Have you tried doing a BIOS reset?
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  3. #3
    Wuf
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    Your q6600 is half dead?
    I've seen an qx6850 which is half dead, only 2 cores work.
    You use IRC and Crunch in Xs WCG team? Join #xs.wcg @ Quakenet
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  4. #4
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    I have tried a BIOS reset, I'll try it once again after i finish installing some stuff.

    I sure hope it isnt half dead...

    It reads two cores on everything... Coretemp, CPUz, Device manager, task manager...

    It doesnt list the amount of cores in the BIOS, Otherwise i'd hope it would say four there.

    Im hoping to get this resolved before 4pm friday, headed to a LAN.

    Use the power of your CPU and GPU to contribute to science! Become a member of one of the most competitive teams in the world of distributed computing, help find cures for diseases and various other charitable scientific causes. It's as simple as running a program! Go visit the World Community Grid and Folding at Home Forums for more information on these projects. CRUNCH 'N FOLD!

  5. #5
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    My guess is that it's something BIOS-related. Maybe there's a setting you overlooked.

    Go to Start, then right click on Computer, then go to Properties. Under system information, is the CPU listed as a quad? It should look something like this.
    Last edited by sierra_bound; 03-20-2010 at 03:30 PM.
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  6. #6
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    Yep, Looks like that. I'm going to give the bios settings a second look right now.

    Use the power of your CPU and GPU to contribute to science! Become a member of one of the most competitive teams in the world of distributed computing, help find cures for diseases and various other charitable scientific causes. It's as simple as running a program! Go visit the World Community Grid and Folding at Home Forums for more information on these projects. CRUNCH 'N FOLD!

  7. #7
    Wuf
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    Reinstall your cpu?
    There might be some contact problem between socket and cpu.
    You use IRC and Crunch in Xs WCG team? Join #xs.wcg @ Quakenet
    [22:53:09] [@Jaco-XS] i'm gonna overclock this damn box!
    Ze gear:
    Main rig: W3520 + 12GB ddr3 + Gigabyte X58A-UD3R rev2.0! + HD7970 + HD6350 DMS59 + HX520 + 2x X25-E 32gig R0 + Bunch of HDDs.
    ESXI: Dell C6100 XS23-TY3 Node - 1x L5630 + 24GB ECC REG + Brocade 1020 10GbE
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    Lappy!: Lenovo Thinkpad W500: T9600 + 8GB + FireGL v5700 + 128GB Samsung 830 + 320GB 2.5" in ze dvd slot + 1920x1200 @ 15.4"


  8. #8
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    Reset Bios, No luck. Messing with CPU options for a bit, Then gonna re-seat it.

    Use the power of your CPU and GPU to contribute to science! Become a member of one of the most competitive teams in the world of distributed computing, help find cures for diseases and various other charitable scientific causes. It's as simple as running a program! Go visit the World Community Grid and Folding at Home Forums for more information on these projects. CRUNCH 'N FOLD!

  9. #9
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    Just finished re-seating the CPU, YES. It works.

    I am so relieved... Didnt think something as simple as that would do it, But it did. Thanks for the speedy replies guys, It would be a very frustrating and lonely night of troubleshooting if it wasnt for this place.

    Now, To OC it!

    Use the power of your CPU and GPU to contribute to science! Become a member of one of the most competitive teams in the world of distributed computing, help find cures for diseases and various other charitable scientific causes. It's as simple as running a program! Go visit the World Community Grid and Folding at Home Forums for more information on these projects. CRUNCH 'N FOLD!

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    OC it to the moon. Make it suffer for the heart attack lol.

  11. #11
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    Might you enlighten us on which version/type Vista? e.g. Business/Home Basic/Home Premium/Ultimate 32/64

    I have heard it can happen on OEM versions
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  12. #12
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    Quote Originally Posted by Oc-Ghost View Post
    Might you enlighten us on which version/type Vista? e.g. Business/Home Basic/Home Premium/Ultimate 32/64

    I have heard it can happen on OEM versions
    Make the BIOS only see 2 cores? don't think so..

  13. #13
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    im my bios I have to enable 4 cores or it will only run 2 of them. took me a few min to find that setting lol



  14. #14
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    Yeah, I have the same option, Multi core processing i think. It was on, Im not not sure why it wasn't working. I re-seated it, and it now works fine. I have Vista x64 Business, The version that wont read all cores is Vista Basic.

    After an overnight stress test, it looks like 430x8 = 3.44Ghz will be the overclock for now. I'll do fine tuning later, for now it's at 1.45v. Max temp is 46C on full load, And the temps are spread very evenly, Looks like i got lucky and got a good mount. right now, On WCG, temps are 44-42-43-43. After the LAN, I'm hoping to keep the overclock above 3.2, But get the voltage down to 1.4v. Also, the memory has some room to spare, And ive seen people push it well beyond it's rated speed, So I'll have to tinker with that for awhile as well.

    Use the power of your CPU and GPU to contribute to science! Become a member of one of the most competitive teams in the world of distributed computing, help find cures for diseases and various other charitable scientific causes. It's as simple as running a program! Go visit the World Community Grid and Folding at Home Forums for more information on these projects. CRUNCH 'N FOLD!

  15. #15
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    I think that is a flaw with the socket 775. somtimes the pins don't make great contact.



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