Problems with WinneX 1E Motherboard

[ABEO]

I have just upgraded the CPU on a machine for somebody with a QDIgrp WinneX 1E Motherboard.

I tested it all a few times, worked ok, sent it back to him and he said that after turning it on and using it twice, it wouldn't turn on, he said he turned it on and off a few times then it worked once, he was ableto removed some needed files before it stopped working again and it hasn't worked since.

He said that when powering up it doesn't even get to the post screen or the beep. He said it's just black screen, the drives power up but nothing else.

When I was upgrading it I had a similar problem with the memory, it wouldn't accept 133Mhz RAM so I had to put the old RAM back in, and it wouldn';t work when the two chips(both the same) were in one way, but when I swapped them they were fine.

Do you think it could be a memory problem? or is it a Motherboard problem?

What is the best solution in this situation?

[Aegis]

I have no idea why it would suddenly stop working. Only explanations I could think of is that the CPU was overheating/unstable or there was a power surge that messed something up or the other guy opened his case and killed something with static electricity. At any rate, first thing to do is to isolate the problem by replacing the components bit by bit until you find out what's not working.

[LLXX]

I have never heard of a "QDIgrp WinneX 1E" mobo before...

It might be a power supply problem - what is the current PSU in the machine?

[ABEO]

The machine is fairly old, I think the PSU was less than 300W

This is the QDIgroup website:

http://www.qdigrp.com/qdisite/eng/products/wx1e.htm

There are a lot of power surges here in spain, we have no earth pins on the plugs/adaptors

I am going to look at it this afternoon so I will try and isolate the problem.

Any more suggestions?