Flashing screen but not video card!

Stevebeve85

Honorable
Nov 17, 2013
2
0
10,510
Hi there,
I'm having trouble with a flashing screen (about once every 3-5 seconds when it's bad). There are two components that confuse me about this problem. First it's not my video card, as I recently replaced it and reinstalled the OS completely and still had the issue. Secondly, this is only a problem when the internal temperatures get to about 50-55 degrees C or so and usually that only happens when I'm playing a game. If I turn my AC on or it's cold enough outside I don't have this problem. All my fans are working. It's a computer my brother built but I can elaborate on the specs if anyone needs more info. Any advice on how to troubleshoot from here? Thanks!