Probable desktop PC motherboard damage from condensation

theotherosproject

I had unusual weather where I live recently, and my apartment managed to get all condensed with only my room left to spare. I have a desktop PC in the living room so it had quite a lot of condensation itself. It was left to dry on its own for a week before powering on, everything was working fine the next couple of weeks until today.

The computer turns on but not POST, no beeps or other obvious error messages. How do I go about fixing it?

yourepicfailure

Likely something oxidized or some residual liquid shorted(ing) something.

And you left it to air-dry on its own... not good. Best open it and check the board, and take a multimeter to PSU when you force it on.
AKA look at the board for random white or odd-colored powders and test the power supply. Would be even better if you had a MOBO tester.

Repair? Might be possible depending on what got shorted or oxidized.

EDIT:
Either that or your gpu is jacked up. Is there any sign of activity from the machine?

Icon

Condensation could have likely been trapped inbetween components where air is less likely to penetrate.