I should mention, that this is not my main system; however, in a lot of ways still my favourite. I have pretty much exhausted my ability to determine the problem I am having. The machine is fairly standard 8GB RAM, 1.5 TB HDD, core 2 Quad G8200, 2.33 GHz.
My power supply went, I replaced it and have not been able to login since - keep receiving BSOD's (usually in garbled text) with completely different codes each time. I ran all the extended dell diagnostics many times - no errors. I disconnected the DVD and installed a different video card - same problem. I removed the RAM and installed 4GB from another system - same problem. I removed the HDD and installed a 1TB HDD from another system with W7 installed - same problem. I removed the HDD completely and ran linux - Knoppix and Ubuntu live - both will freeze at a point (they will run for a while, usually 10 - 15 minutes, Knoppix longer). I ran HIRENS boot CD and ran XP mini - which runs 100% for days - no problems.
EDIT: Sorry, should have mentioned - safe mode doesn't work and not getting a dump file to analyze.
BTW, capacitors all look good on MOBO. I also cleaned the inside of the machine with compressed air - clean as a whistle. Am I missing something? Any other suggestions? Should I just give up on my old favourite?