Appreciate it. I actually am running a newer rig (i7, GTX 1060, etc.). The rig in question is my previous PC that I gave to a family member.
Thanks for the tip about the calculator. I'll keep that in mind.
It's an older rig that I've added multiple upgrades to over the years, so I don't recall every component off the top of my head. The new CPU that died is a FX-8350, GPU is a R9 285. It originally had some lower specs and a 700 watt PSU, but that PSU died a few years ago and I replaced it with...
Computer one day randomly shut down and wouldn't reboot. The power would come on, but nothing would display on the monitor (no signal). Changed GPU's (Mobo didn't have a usable video output), etc. and nothing worked. Bought a new Mobo and the problem was the same. Replaced the CPU, it booted...