NCR Tower PSU again

Well, it's sort-of alive... I think there's a bus fault somewhere though - system tries to come up, system board and memory pass tests, then it fails first on something called SSKE, before proceeding to fail both the SCSI controller and the the serial controller boards. Funny how it knows that the SCSI and serial boards are there, yet it thinks they're faulty. I can't think what SSKE stands for either, but as it's the first error logged it's probably the root of the problems. So, I can talk to it on the console and get the diag menus up, but not much else at the moment! :) I've mentioned the specific fault codes on comp.sys.ncr so hopefully there are still a few old timers there who happen to have manuals and can look up the details... cheers Jules