VERY OLD board, with bulging caps. The best advice I can give you is to toss it into the trash bin. This board has long since reached its usefulness.
Save yourself a lot of time and money, and get a board that is still supported. And, it is likely that your memory and processor will accompany the board to the trash bin, as they will not be usable on a newer board..
P.S. Not that this is a cause of the problem, but when was the last time that heatsink was cleaned?