The title mostly sums up the situation. I posted a thread recently where I tried to find a solution for my then-dead computer, thermal paste fixed the problem. I then ran into a problem where neither the BIOS or POST would load up. I did a few very minor things (like removing components, resetting the CMOS jumper, unplugging the CMOS battery and leaving it loose for 15+ minutes) and nothing has helped.
I know the PSU works since it was running for 3+ hours earlier (I also went overboard and short-circuited, if that's the term, the PSU with a paperclip and it got the PSU fans running), the mobo is receiving power and this is indicated by the built-in onboard power button lighting up green, I have stripped the system to the power cables and HSF, and yet when I press the on-board power button it does absolutely nothing.
In desperate need of help!