Dead CPU? No bios no USBs working HELP

Jordibuh

Commendable
Sep 10, 2016
11
0
1,510
I recently upped the voltage on my FX 6300 and now the pc won't show display show bios no beeps no USBs working either. I have replaced the motherboard as I thought that might be the problem which it is not. With the new Mobo in it is exactly the same no bios no display no USBs working. The PSU works. I have tried everything possible and I'm getting no where. Is the CPU dead?
I don't want to spend any more money buying new parts to find out that it's not that that wrong.

R9 290-water cooled
Gigabyte 990x gaming SLI Mobo
Corsair vengeance ddr3 ram 4gb x2
Ocz 600w PSU
1tb hard drive
60gb SSD