7950GT: SCreen Blacks Out, GPU Fan Maxes Out - HELP!

Discussion in 'nVidia Flavor' started by sohosources, Nov 20, 2009.

  1. sohosources

    sohosources n00b

    Messages:
    52
    Joined:
    Oct 7, 2006
    Hi, gang:

    I've been having issues with my "foolin' around" PC...

    When running UBUNTU 9.1 64-bit, no probs whatsoever...

    In XP, SP3, after trying to run Modern Warfare 2 the other day, the game starts, but freezes or blacks out, forcing a hard "with the switch" reboot...

    After installing Win 7 64-bit enterprise-eval on a different plug-in hard drive, during the install process (and afterward, with the Win 7 desktop running), the screen blacks out and the 7950's fan maxes out, making a hella racket. These things happen simultaneously. My monitor shows its "no video" warning, but the OS or the game still keeps working...just with no video...until I have to hit the big red switch.

    This machine has been flawless for more than a year. It has a 945 chipset on the Gigabyte motherboard (for Hackintosh compatibility), and mostly runs with its XP Home SP3 hard drive installed in the IDE cage. 4 GB DDR2-800, etc.

    I've been reading here and there about a "killer driver" from nVidia... Don't know whether it's true, but the machine did recently install the 190-something driver on the XP drive (which was the first drive/OS to exhibit problems.

    I got out the compressed air are tidied up a bit, but there was hardly any dust anywhere...and the temps and performance had been fine for months. The PC is mildly OCd, but the 256-MB 7950GT PCI-E is stock-clocked.

    Any ideas?

    Thanks,

    --Kirk in MN
     
  2. Silus

    Silus [H]ardness Supreme

    Messages:
    6,477
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    Aug 21, 2006
    When you say "the game still keeps working", you mean you hear the sounds ? If so, does the sound continue normally or does it stutter constantly ?

    If it continues normally, have you tried using the other DVI connector ?

    Also, have you experienced any sort of artifacts (even in the desktop) ? If you have, your Video RAM is probably faulty.
     
  3. sohosources

    sohosources n00b

    Messages:
    52
    Joined:
    Oct 7, 2006
    When the PC continues on despite the fact that the screen has blanked out, there is no stuttering, etc. The sounds are normal.

    I tried the other DVI connector -- same result.

    No desktop artifacts otherwise. It just craps out when the card starts to get stressed in 3D games, etc.

    BFG has RMAd the card...so in the meantime I have to fall back to an 8600GT I have laying around...

    --Kirk in MN