Weird 20 minute lockups

Hope someone can help with this one - my computer freezes (hard lockup) after 20-22 minutes of use. It will do this about 8-10 times in a row, then not freeze for no discernable reason and run fine until I power down, at which point the cycle starts again. My temps are not running too high, I have replaced the CPU cooler and power supply, defragged the hard drive, nothing seems to help. Any ideas? The system is a Shuttle nForce2 board with Athlon 2400+, 768M DDR Ram, Sapphire AGP X800GTO GPU, 80 gig Maxtor HDD.
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  1. Quote:
    Sapphire AGP X800GTO GPU

    Did this just start happening? Check out device manager and make sure there are no conflicts with your system.
    Try to uninstall these drivers, reboot, then install the neworigninal ones. What was your OS & service pack? Can you log in as an Admin or Guest user to your system? If so check out if the log up hangs under that profile to rule out any corruption for that angle, but I believe there is a driverresourse conflict here.

    Does this occurance happen in safe mode as well? It funny that youd wait 22min for the system to unlock, most people would have been on the net looking for new parts by then.
  2. Running XP Home SP1 (and have been for some time without issues), and there are no resource conflicts in the Device Manager. The problems did not correspond with any software patch/update, and the hardware has been unchanged for 6 months other than the new cooler and PS, which I installed after the problem started. I haven't tried to see if it will go the full 20 minutes in Safe mode without locking. Logging in on different accounts is not a problem, and does not change the behavior. This is my primary machine, and I am a science teacher, so I'm poor and addicted to solving problems, so I have kept banging away at it - at this point I would love to find the answer just for the sake of knowing what was going on... :wink:
  3. So the problem is duplicated under the Administrator account?

    I think you may have a could be a failing piece of hardware or a driver conflict,

    Try a clean install of Xp, then down lead SP2. If you get a copy of gost to run, take a snapshot of your drive and back it up. I think your system has become corrupt. Take a look into the Bios as well and maybe flash it to a new version.
  4. Your suspicions duplicate my own - the clean OS install is probably my next step, though I may try to go to SP2 first and see if that resolves the problem. I am concerned about a couple of older pieces of software having difficulty with SP2, which is why I hadn't installed it yet, but I guess I have to update eventually...
  5. I won't worrie about your older hardware, SP2 is a heavy application of hotfixes that Micro$oft published to resolve sercurity issues and some universal driver updates, HIPPA componants and what nots. Go ahead and try to install it and see what happens, but I still believe that a fresh install will be the best route.
    Download the network version of the driver inorder to avoid lan hicups. Good luck.

    One thing that just poped into my head would be any memory leaks or swapfile overloads due to some shotty hardware or maybe some type of malware running on your PC. Either way a reinstall will reveal any issues durring setup. Sometimes window$ resolves its own issues, when in realtiy it just made things worse without the users consent.
  6. I had wondered about memory issues - I may try running on 1 DIMM, then switching to see if that is the problem. I did run memory diagnostics, which did not reveal any problems, but I did not run the long-duration type, which might reveal a more subtle problem. The best solution would be to go build a new PC, since this one is 2.5 years old, but I lack the money to make that feasible... :(
  7. Just try the SP2 upgrade, if that craps out still, try a new install. Atleast that will take many possible issues off the table as to what exactly may be worng with the PC, as well as even fix the issue.
  8. It may be that particular model (I am at work, can't check and don't remember off the top of my head), and I did have it behave oddly when I added a 2nd stick of RAM a while back - had difficulty recognizing it for some reason, as I recall. I'm only using 2 sticks currently, so that is likely not it.
  9. When you get home, check for a bios update. It could reslove some hardware issues.
  10. Thats a nice post doolittle. I suggest you start a new thread and poll it have a stiky on it.

    BTW: good luck guruofchem, keep us posted
  11. Thanks you!

    It seems everytime I turn around a new thread is started where one of the first things that should be checked in order to isolate the issue is really crunching on the hardware, yet many times this is overlooked (not to belittle PCcashCow's suggestions, as they are the very next logical steps that should follow) when it is vital to make sure that the underlying hardware's not to blame first.

    To further doolittle's suggestion, if it does fail the burn-in testing, the afore-mentioned Ultimate Boot CD will provide all the tools necessary to eliminate many of the common points of failure, hardware-wise (multiple memory testers, disk checkers, filesystem checkers (I believe they have added NTFS finally), and system diagnostic tools)

    Happy hunting
  12. Excellent advice all - my thanks to all of you for your ideas. If I can pinpoint a cause of failure I will be sure and post it to the thread. That Ultimate Boot CD looks great - looking forward to trying that one!
  13. The speed and type are matched, but 1 stick is 256 Mb, the other 512 Mb. It had run that way for well over a year before any issues cropped, so unless one of the DIMMs is failing somehow, I think a RAM mismatch is fairly unlikely to be the problem. Thanks for the idea tho - might be worth investigating if more likely causes don't pan out...
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