Amiga 3000 driving me crazy

[chfriend]

Every few months I have to complete tear down my 3000 and reseat everything to get it to work.  This time it was the flashing green screen of death, which after taking everything out and narrowing it down, appeared to be caused by the Warpengine 3040 even though it's screwed down to the posts.  In the past it's been the graphics card (I still get occasional graphics corruption on the graphics card and I have to take off the cover and play with it in the slot to stop it).

What is the best thing to use to give the connectors a good cleaning without risk of damage?  Spray electrical cleaner?

[chfriend]

Just use an eraser and gently rub up and down on the contacts. The best brands/type are the Magic Rub or the Pink Pearl.

Work great.

I've done that. The problem is that doesn't work on the female Zoroaster connectors or either of the fast slot connectors because you can't get the eraser in it and I think that's where the problem lies.

[chfriend]

I'm starting to wonder if it's the PSU as well.  I just got it back together with no expansions and at first got a green screen with constant reboot, followed by a white screen and then it booted.  The other thing that happens is until the computer warms up the Amber output is fuzzy unless I play with the back video adjust control.

Anyone know of a suitable replacement?  Unlike the 2000 which can take a standard AT/ATX supply without much, if any modification, the 3000 is completely proprietary regarding the form factor.

In fact, IIRC a 1hz reboot indicates a problem with the power supply tick signal.