Question Computer suddenly won't boot--crashes on bios after multiple tries

[crowellster]

Hi all,

Background: I have been working on an Unraid PC build. Everything was functioning fine booting from a thumb drive. Decided to dual boot with an old windows install on a SATA SSD (earlier iteration of this same machine). Worked fine. Then booted into unraid and set up that drive as a VM.

Problem start: Shut down the machine for a couple of days. Tried to boot directly into windows--it kept powercycling. Didn't even show post screens. I was able to get it into the boot manager, but it crashed before any options showed up. Now it keeps power cycling and occasionally getting into that same boot manager, where it crashes.

Things I've tried:
- Reset CMOS (remove battery and also jumper approach)
- Reseated CPU
- Removed ALL peripherals
- Reseated RAM, went down to one stick. Tried different sticks in different slots.
- Replaced Power Supply -- Now it won't even try to boot. Just repeatedly power-cycles without getting anywhere.

Is this thing just fried? Seems crazy that without touching it, it just stopped working.

System:
V old but was running fine. i7 2700k, 32GB ram, iGPU, 850 watt PSU.

 

[Lutfij]

Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.