Tried upgrading memory no computer doesnt boot up and no display

Things to try:

1. Check that your video card is seated fully (some are very picky about how they like to be inserted) and yours only likes only 1.5V agp cards. according to the manual.

2. Use one stick of ram. If you can get that working then add ram from there.

I have another old asus board that will only take one 512meg stick max, that is it. If i did add extra ram it occasionally would work for a few hours then ram errors again. The only ram that it liked was nanya for whatever reason.