Well as Lsdmeasap has already stated 88 is dead CPU, but can also be dead/incompatible PSU or dead motherboard. So let's assume your motherboard is ok as it has been tested so that leaves PSU or CPU. The easiest way would be to swap one of them out but it has to be for a decent unit. I would advise the PSU personally because I have always had my doubts about the one you are running. If you do decide to change it make sure you get one of at least 700W plus and with a 12V single rail of good quality.