My new PC isn't turning on!

dafuq4339

Honorable
Jul 20, 2013
3
0
10,510
My computer isn't turning on, it is the most weirdest thing I have ever encountered computer wise.
I bought a computer last year ( a very good and expensive computer), and it simply isn't turning on. At all. Not 1 led or any sign of life!
The weird thing is, I unplugged it from everything and left it out of power for about 2 days, and when I turned it on again (one last try before I take it to my computer doctor) it turned on. It booted, and worked fantastically. I stressed it out completely (CPU and GPU wise) got all components up to 80c.
I call my computer doctor to tell him everything is fine.
I restarted my computer to check if it all works and it did. Later that day I turn it off for the night, and in the morning it didn't turn on again. Back to the god damn start.
PSU- Enermax 650W
CPU- Intel core i5 3550
GPU- Palit GeForce GTX 570
RAM- 2x4Gb
When it worked that time, everything was fine, nothing faulty.

-edit-
i got it to boot again 1 day later, apparently it works after leaving it unplugged overnight.
I AM TYPING FROM IT NOW :)
when i turned it on though, it failed to turn on then repowered itself on giving me the message: MAIN BIOS FAILED. so it repairs itself with a dualbios function and now it works.
it is going to fail again after i turn it off