SN45GV3 / RAM Issues

[Aa-chan]

My friend bought a Shuttle SN45GV3 and was planning on using his Corsair PC2700 with it. Everything was fitted fine, but when installing Windows, it would randomly BSOD during the install. The BSODs came at varying points. I thought it was a RAM issue and even after trying with each stick on their own, it still wouldn't play ball. It would crash randomly in Windows and sometimes just not boot properly. So, I said he should pick up some Crucial PC3200 because I know it to work in there and Crucial say it does anyway. The new sticks are a bugger to get in, but even after they are in, problems are still occurring.

The computer tends to display nothing on screen, the fan will go crazy and the power LED will go off, but leave the HDD one on. Every blue moon, it gets into Windows, but dies after a short while.

I've told him to get the RAM replaced by Crucial, but having nothing to test it out one is troublesome. Does this sound like RAM, or could we be looking at the Shuttle being funny

Specs
Shuttle SN45GV3
XP2500+
Leadtek 6600GT 128MB
40GB + 120GB IDE HDDs

[jon bda]

Trying the basics mate, its not overheating is it?, the ICE is sat properly etc?.
:)

[Aa-chan]

We checked that one and it was seated properly.

[Aa-chan]

Well, thought I'd update the problems on this one.

Basically, we tried reseating the CPU and we turned it on and everything was fine. We then plugged the HDD back in and got into Windows. Everything seemed to be working fine, including the 2x512MB of Crucial until we plugged in everything else. After that, we couldn't even get a POST. Went back to the working config and now that won't post.

The temps in the BIOS seemed to be perfectly fine [30-40C] on mobo, CPU and PWM, so I don't think that's the issue. Could it be a power problem? Could the PSU be faulty and thus, not always able to deliver enough power/voltage? Just running through the possible problems before he has to send back the Shuttle.