Help needed to diagnose persistent crashes

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Joined
2 Jan 2007
Posts
24
I have a system problem that I am struggling to diagnose. The system in question (see below) has been up and running for a couple of years and has been exceptionally stable. However, a few weeks ago I had 3 CDTs in a row whilst gaming and on the next reboot XP failed to load. Luckily I still had an install of Win 2000 on another HD, and suspecting a corrupt XP install, managed to use scandisk to repair the XP drive. Everything was fine for a few weeks until last weekend when the crashes / freezes in 3D returned but this time accompanied by display corruption. This became progressively worse until I was getting bad graphics corruption in 2D and finally the screen would lock up and display a 'no signal' message. I tried reinstalling the drivers and monitored the card temps (never above 60 C - as per usual). Finally I decided it must be a dying GPU, so called Overclockers and got myself an RMA (yet to mail it off).

In the meantime I replaced the X1950 Pro with a 9700 Pro I had lying around and got on with some work. However, whilst the display corruption was gone in 2D (haven't even tried 3D), after about 20 mins the display stops responding, I get the 'no signal' message on the monitor and the system reboots itself.

This has got me stumped - I though I had the problem nailed as the X1950 Pro was showing all the signs of a card that was not long for this world but since the 9700 Pro is also crashing Im inclined to think the issue is not GPU related. I will test the X1950 Pro in another system this evening to confirm whether it is terminally ill.

Although I have ordered some new kit for a complete upgrade, I want to sort the problem out as the components in this rig will be recycled into a second PC.

If it not the GPU, any ideas what it might be?


System:
Athlon X2 4200, Asus A8V deluxe, ATI X1950 Pro AGP, 2 gig DDR RAM, SB Audigy 2, Akasa 460 watt PSU, Win XP Pro.
 
Have your tried reseating all the cards and the CPU with new thermal paste, it sounded like an overheating issue to start with but its possibly a PSU fault. Do you have another PSU you can try?

Also run Memtest+ on your memory in DOS, one stick in the machine at a time. you can get this from ultimatebootcd.com as an iso.
 
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