GVP 1230 problems

[webmany]

I have a GVP 1230 connected to a A1200 1D3 motherboard that is having problems.  It starts fine sometimes.  The res of the time it gets a gray screen.

Even when it starts it can freeze up when doing simple things like the starting screen for Sim City.

It has a new AT power supply, so power should not be an issue.

Any ideas?

[webmany]

I found problems with 1d4, but nothing on 1d3 so far.  What should I be looking for?

[webmany]

Don't caps bulge when they go bad?

[webmany]

Is there a way to test them, or just replace them.

[webmany]

Did a test of the PSU and on the it went between 4.85 -> 5.20.  Could this be enough to cause my problems?

Also, I am tracking down the capacitors.

[webmany]

I was doing it wrong.  When I hooked it up to the 1200 and powered it up it was 5.08 - 5.10.  Most of the time steady on 5.10.

Will replace the caps and let you know.

Thanks for the help