non booting Opti 990

This was a fairly good one that had me today.

Machine when powering on would spin up the fans and hard drive but would not show any output to the lcd screen.

I had a like opti 990 model so i removed the video card and swaped them since i've seen video cards go out.

That wasnt the issue. Next step remove the memory and boot it up at 2 sticks at a time.

That was it memory issues. So i went through each pair to find out non of the memory was bad. Just needed to be reset and everything booted properly.

Bios mem test showed nothing wrong as well.

So when in doubt always reset devices and cables just to be sure in shipping something didnt jiggle free. BUT i swear the mem chips were all pushed in properly and snug.