Optiplex 7010 Motherboard MT Issue

Over the past few days, my Optiplex 7010 MT has been pretty problematic. I have to play with the 24-pin connector for the PC to even turn on, no matter what I do the PC doesn't display any image (tested with 2 different graphics cards), and the PC also doesn't recognize my RAM. Due to all these factors, I have reason to believe that my motherboard is faulty to some degree. Is there something I can do to fix it so I don't have to completely replace it?