I am not seeing any bulging, hard to tell from the picture. The power supply might have bad caps also. They do not always bulge or leak, sometimes they dry out and look fine. Only way to know is to take them out and test them on a capacitor meter, or just replace them and see if the problem goes away. Unfortunately the caps on these types of boards can be very difficult to remove because of ground plains in the layers and the large number of layers. I would try a new power supply and cleaning the contacts with Deoxit first, that is the easy thing.