By Vladmax ยท 5 replies
Mar 13, 2008
  1. Hi,

    Basically I am having this problem which locks up the screen, if something was going on the PC (video) you can still hear it, screen greys out and thats it... I have to restart PC using reset switch. It only happens after computer is left on for a while (8 hours +). It locks up at any random time even with PC just sitting there doing nothing, urfing web or reading e-mail (I mean not just running games)

    Steps taken:

    Tested 4 pairs of RAM
    Upgraded PSU from 750 to 1000W
    Updated drivers fron nVidoa 169.21 (had a lot of lockups almost 3 to 5 daily) to TweakForce 174.16 (much less problems, in fact only had 3 lockups today and no lockups for the past week)

    Another interesting thing is that after swapping RAM for a fresh pair the problem seems to go away for a while but then comes back, I don't meen new RAm I mean the one that has been out of the systm for a couple of days.

    Any help is appreciated. Some dumps attached.

    System Temps:
    Mobo - 45C
    CPU - 30C
    NB - 70C (it is 780i Chipset which gets very hot at times)
    2x 8800 GTS 512 - 55C
    Room Ambient - 24C

    Coolermaster Cosmos Case (Side is opened for better cooling)
    Intel C2Q Q6600 @ 2.4Ghz
    Kingston HyperX KHX9600D2K2 - DDR2 1200 2x1Gb 1066Mhz - 4-4-4-12 @ 2.4V
    Asus Striker II Formula (BIOS 1001)
    4x WD 500Gb 32Mb Cache HDD (2x non raid, 2x raid stripe)
    2x XFX 8800 GTS 512 (G92) SLI m 720Core/1100Memory
    LG DVD-RW (H42L or whatever it is)
    ULTRA X3 1000W Power Supply
    ASUS USB Wireless Adaptor WL-167G
    Few more USB devices as well (Keyboard, Mouse, External HDD)

    Gemini II CPU Radiator
    6x Noctua NF-P12 fans 1300RPM (2 Fans on CPU heatsink)
    1x AMD CPU 3000rpm FAN on NB
    1x 80mm FAN to help maintain proper airflow around the case
  2. Matthew

    Matthew TechSpot Staff Posts: 5,333   +101

    From what I can see, every last one of those complains about "nv4_disp.dll".

    Try updating both your chipset and VPU drivers to the latest version (if they are the lastest, try a previous version).

    Your latest chipset drivers: Windows XP 32-bit

    Your latest VPU drivers: Windows XP 32-bit
  3. Vladmax

    Vladmax TS Rookie Topic Starter

    Some more minidumps
  4. Vladmax

    Vladmax TS Rookie Topic Starter

    Tried 169.21, they were my original drivers and had lots and lots of lockups. Downloaded TweakForce 174.16 and almost didn't have a problem till today... 3 or 4 lockups...

    Downloading chipset drivers now....

    However, came across one thread saying could be PCI-E voltage, so raised voltage for SB, NB, 1.2H and Bridge volatge as Mobo doesn't have dedicated PCI-E voltage and didn't have a lockup so far.... (4 hours after last lockup, looking good)

    Could it be faulty card or low PCI-E voltage?
  5. Vladmax

    Vladmax TS Rookie Topic Starter

    Turned out one of the graphics card was faulty.
  6. Matthew

    Matthew TechSpot Staff Posts: 5,333   +101

    Not surprising considering the dumps :p. Unfortunate that one is defective but at least it's solved. Good work :).
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