I'm out for the count, for awhile.
I'm posting from the older machine at the moment.
I shut mine down earlier tonight, and now it won't boot.
No beeps, or lights.
Reset CMOS no luck, I'll pull the battery later, ( Vid card covers it up.)
I am able to make PSU fire up disconnected from the mobo, and all the HD's, fans spool up, short the ones plugged into the mobo. I have also bypassed the case switch, and jumped the pins on the mobo to act as a momentary switch.
I haven't checked the voltages on the PSU yet.
As for now, I'm not going to take anymore of it apart, till I cool off.
Once I confirm the PSU is working, I'll send for an RMA on the Mobo
Gigabyte EP45-UD3R