Computer Keeps Restarting -_-

Im about half fed up with my Computer, Ordered a MOBO, CPU, RAM... well the MOBO i thought was a DOA... kept restarting so i sent it back and got a whole different one... still restarts... i got a new PSU after my other one just died i think it died from it turning on and off so much... well i bought new psu, new motherboard the first time i turned them on was just like 5 mins ago... same CPU/ram.. computer boots passed bios.. blue screen... I think its because of the drive not fully formatting idk... what other options are there?? computer goes to bios right after setup it shuts off... any ideas?

 

NOTE: It even shuts off in BIOS

 

Two things come to mind though I'm probably wrong. Boot to memtest 86+ to rule that out and boot to your hard drive maker's test CD to rule that out as well. Other than that, you've covered everything else that I can think of, bad optical or CD? I'm out of ideas. Good luck.

EDIT: oops, didn't see your second post.