It's a rather bad deal for many out there.
I mean the 8600 problem. If you research that you come away with "how can this industry continue?" or another question like that. I'm running into units that appear to have finite life spans of just a few years. The ones with early versions of the GPUs seem to be common here.
I can't answer your question for a simple reason that I can't touch the hardware or use my Volt meter to check the basics. There were a few boards that when the CMOS battery got too low, it would appear dead. Again, we use a Volt meter to check that out (sorry to repeat that tool.)