sees only one core

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  1. fastslvblkcar
    Posts : 78
    windows 7 premium x64
       New #1

    sees only one core


    well i have tried a bios update running 1.5 as i was prior to install, reinstalled windows 7 once, tried checking one graph per cpu, made sure in msconfig>boot>advanced options were all unchecked, tried easybcd, uninstalled the processor drivers and let windows install them, down loaded the driver from amd and installed it. it seems like everything but its not, there has to be something else. windows 7 x64 bit is only seeing 1 processor. cpu-z shows 1 core and 1 thread. i also noticed the 800mhz ram is only running 400mhz. any ideas and suggestions would be awesome. thanks in advance:).

    k9ngm2 msi mobo
    amd athlon 64x2 5200+ processor
    Last edited by fastslvblkcar; 21 Feb 2010 at 22:09. Reason: left out some info
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  3. pweegar
    Posts : 50
    Windows 7 Ultimate 64bit
       New #2

    fastslvblkcar said:
    well i have tried a bios update running 1.5 as i was prior to install, reinstalled windows 7 once, tried checking one graph per cpu, made sure in msconfig>boot>advanced options were all unchecked, tried easybcd, uninstalled the processor drivers and let windows install them, down loaded the driver from amd and installed it. it seems like everything but its not, there has to be something else. windows 7 x64 bit is only seeing 1 processor. cpu-z shows 1 core and 1 thread. i also noticed the 800mhz ram is only running 400mhz. any ideas and suggestions would be awesome. thanks in advance:).

    k9ngm2 msi mobo
    amd athlon 64x2 5200+ processor
    I would start thinking maybe 1 of 2 things. 1 would be your mb is having issues and needs to be tested or 2) your cpu has a dead core. You might start asking around for test software. And if you can, find someone in your area to test your cpu and motherboard for problems.
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  4. fatedquest
    Posts : 121
    Windows 7 Ultimate
       New #3

    Create a 10GB partition using EASEUS partition manager(free). Then install whatever previous OS you have and see if this problem persist or not.
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  6. fastslvblkcar
    Posts : 78
    windows 7 premium x64
    Thread Starter
       New #4

    well in the bios boot up it sees that it has all the ram and what speed and the processor so i wouldn't think it would me a motherboard issue but that is a possibility.

    i still have xp on another partition and it only shows 1 core also.

    in this thread it asks to show the processors in dm i only have one listed

    hxxp://www.sevenforums.com/hardware-devices/39740-dual-core-processor-only-1-core-active.html
    Last edited by Brink; 23 Feb 2010 at 00:13. Reason: merged posts
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  7. mikewohlford
    Posts : 4
    Windows 7 Ultimate 32bit
       New #5

    I had the same problem after updating my BIOS on my MSI X58 Platinum motherboard. Then I restored the "default settings" in BIOS and then my cores were fixed. Showed 1, then 8 when fixed.
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  8. fastslvblkcar
    Posts : 78
    windows 7 premium x64
    Thread Starter
       New #6

    i will try default and see thanks for the suggestion

    no luck with bios settings. could it be a power supply problem? found out my power supply is only 335w
    Last edited by fastslvblkcar; 23 Feb 2010 at 00:17. Reason: merged posts
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  10. fastslvblkcar
    Posts : 78
    windows 7 premium x64
    Thread Starter
       New #7

    well i installed a new 750w psu and had no luck

    this is what it shows in wei system info


    More details about my computer
    ComponentDetailsSubscoreBase scoreProcessorAMD Athlon(tm) 64 X2 Dual Core Processor 5200+4.43.9 Determined by lowest subscoreMemory (RAM)4.00 GB5.6GraphicsATI Radeon HD 24003.9Gaming graphics2015 MB Total available graphics memory5.3Primary hard disk112GB Free (154GB Total)5.9Windows 7 Ultimate
    System ManufacturerMSI ModelMS-7252 Total amount of system memory4.00 GB RAM System type64-bit operating system Number of processor cores1Storage Total size of hard disk(s)997 GB Disk partition (C:)112 GB Free (154 GB Total) Disk partition (D:)542 GB Free (545 GB Total) Disk partition (E:)82 GB Free (147 GB Total) Disk partition (F:)51 GB Free (51 GB Total) Media drive (G:)CD/DVD Disk partition (H:)8 GB Free (100 GB Total)Graphics Display adapter typeATI Radeon HD 2400 Total available graphics memory2015 MB Dedicated graphics memory256 MB Dedicated system memory0 MB Shared system memory1759 MB Display adapter driver version8.612.0.0 Primary monitor resolution1280x960 Secondary monitor resolution1920x1080 Secondary monitor resolution1024x768 DirectX versionDirectX 10Network Network AdapterNVIDIA nForce 10/100/1000 Mbps Ethernet Notes The gaming graphics score is based on the primary graphics adapter. If this system has linked or multiple graphics adapters, some software applications may see additional performance benefits.
    Last edited by Brink; 03 Mar 2010 at 09:05. Reason: merged consecutive posts
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  11. Little Darwin
    Posts : 236
    Windows 7 Home Premium (64 bit)
       New #8

    No real information, but I can confirm something.

    If I am reading that right, it looks like only one core to me, I run the AMD Athlon X2 5000+ and my processor number is 5.6 I suspect that you should have better than that with the 5200+.

    Your memory speed is lower than mine as well. Mine is 5.6, and although there is probably more to this measurement, I would assume with a higher end processor, you would have a Mother Board/Memory that would do at least as well as I see.
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  12. Frostmourne
    Posts : 2,685
    Windows 7 Ultimate x86-64
       New #9

    Download the Ubuntu live cd and see if Ubuntu detects it - and what does your BIOS say?
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  13. Wishmaster
    Posts : 4,517
    Windows 7 Home Premium 64bit
       New #10

    CPUz shows your 800 RAM as 400 because its DD2 / Dual Channel Memory.
    This is normal.
    400 x2 = 800Mhz
    1066 RAM would be seen in CPUZ as 533 ( 533 x2=1066)




    Look in Device manager:
    Under processors -- What does it show there?
    You should have 2 listed for a dual core

    Make sure all your drivers are updated

    Also, Reboot into bios and RESET to Optimized Defaults .. save and restart.
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Windows only sees one core
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I am running Windows 7 Ultimate 64bit. It has been running well, but recently I noticed that one of my cores from my core 2 duo is not being shown in the task manager, msconfig or speedfan. In the task manager, there is only one graph, and the view>cpu history>one graph per cpu option is greyed...
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