Weird issue with Gamecube

[Mahjarratian]

Hello everyone, I'm having an issue with this Gamecube, I'm thinking something fried, but would rather have a second opinion on the matter.
http://imgur.com/a/9pNNr
(couldn't help the glare, ask for pics of specific areas if needed)

Story, wired up Megav6, and everything worked fine, loaded a game and it worked.
However, the second time I loaded up swiss, I pressed b twice, which froze(tried loading something?) the system, and I cycled the power to reset, but when given power, nothing happens now, just a black screen.

The weirdest part, I wired up another power regulator, and it worked, on the first boot. After that it had the same issue. (black screen) I removed the megadrive, (thought maybe it could be my wiring, even though it loaded games fine) and with nothing but the video cable/gcmobo/regulator, it still has a black screen.

EDIT: The regulators are outputting correct voltage, 3.43 and 1.9, and the fuses weren't blown, so they're fine.

 

[Blargaman91]

Are you using a custom regulator? That freezing sounds like an issue with custom regulator voltage being too low or it can't supply enough current.

There may be some area where a hidden layer is barely shorting voltage to ground and it changes depending on how you're handling the board. Sanding would fix that.

 

[Mahjarratian]

Stock regulators, both of 'em, i'll sand the edges again and try in a few, will update when I do.


Edit: Huh... I didn't sand, and just rewired the reg, its working fine now. (Perhaps a cap needed drained?) But I will sand just in case that was the problem, thanks.

 

[Blargaman91]

With something that finicky I can only image that it needs sanding, since that would make it respond to touch. I don't think anything else would do that unless some part of your board and/or regulators is failing.