Hi, I'd say what you need to do is to Reduce server to minimum configuration (when same error occurs). So just one CPU and if you still see the same error, I'm afraid you may have to change the motherboard.
Hello,      I picked up a server recently and have been trying to diagnose its problem.  I have error code VLT0204 "the System Board fail-safe voltage is outside of range" and a 2cpu configuration in a C4B3R motherboard.  Some things I have tried: I'm thinking that there may be a short in the motherboard somewhere, and am wondering if I can get a detailed diagram of the motherboard to help diagnose where it could be. Or if there are any other tips to diagnose.   Thank you!
Error code VLT0204 on a Poweredge R720