I bought a 1.6 xbox with plans to modchip it. The first time I booted it I got a FRAG, then after turning it off and on it was fine. I tried booting a few times and everything worked, so I chalked the first frag up to disuse for years. I opened the xbox to clean it in preperation for the modchip, make sure caps were fine and all. The metal shield was pretty rusty so following some advise from other posts here I sanded it and painted it with Rustoleum. Other than that, I didn't do anything to the rest of the box. Since putting it back together it FRAGs every boot.
Did I cover a grounding connection and need to clear that? Unsure of what move to make.
Here are some shots of the board.
https://imgur.com/a/iuc8fc1