"Random Mac Pro restart/shutdown"に関する回答I’ve had this issue for some time. I tried everything from RAM tests, disassembly and cleaning, replace the power supply, logic board etc. I finally decided to pull the heat sinks from the CPU’s. I believe I have finally found the issue which is there are failing capacitors on the CPU card. There is evidence of leakage on the board. I’ve ordered replacement capacitors and will be replacing all the little canned caps.