System locking up during gaming.

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I wasn't sure whether to plonk this in General Hardware or here, so here it is.

Over the past few weeks my system has started to freeze during gaming. It will lock up randomly, no black screen, no BSOD, it just freezes where it is and the audio will loop until it comes back to me. I will have control for a few seconds and it will usually start doing it again.

It does it on all the games I've played recently (TF2, L4D2, Call of Duty MW2 and rFactor). What's interesting is that it will only start after a few minutes of play, on games with small maps like TF2 or CoD online this will be after one or two map changes typically. On games with long levels like L4D or CoD SP it will start after I've advanced through the level at some point.

I thought this might be a RAM or HDD issue for that reason, but I'm just guessing, don't know a great deal about hardware faults.

In rFactor I get a similar issue, after about 10 mins of driving it will lock up and the sound will loop, but when it comes back a lot of the textures seem to have randomly swapped (so I might have grass textures on my wheels for instance) and it doesn't lock up again after that.

If I alt tab it takes a good while to reach the desktop, and the freezing behaviour sometimes continues on the desktop until the offending program has been forcibly closed.

Strangely I can sometimes get an hours worth of gaming out of it with only a few annoying brief lock ups, and others I can be playing for 10 minutes and get the crippling freezing described above.

I imagine doing things like reverting my CPU and GPU to stock etc is a good idea, but because I really don't know what it could be I don't know where to start, so if someone could lend their brain that would be smashing. Thank ye :)

Sorry if I have forgotten something or made that a bit confusing, it's quite late :o

Windows XP SP3
Nvidia 190.62
Samsung F1 1TB
Gigabyte DS4

The rest is in the sig.
 
Revert everything to stock is the first point of call.

Check tempretures. Are the drivers up to date? Any software installed prior to the lockups? Fully Windows Updated?




M.
 
checked your event log for any errors?

stick everything to stock, run memtest and atitool to check your ram and graphics for artifacts.
 
I've had the same problem twice in the past. Once needed new sound card drivers, the other was due to a beta release of nVidia drivers.
 
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