Built my pc last weekend with specs:
Asus p8z77-v pro
4*4GB Corsair 1600Mhz Vengeance Ram
Asus Radeon HD 7850
sandisk 120GB SSD
Worked great this morning when I turned it on, I left it on for Remote desktopping whilst at work but when I returned I just had a black screen and no responce. Eventually after numerous restarts and unplugging everything to try and find the fault I found my RAM was stopping it.
I have a blue pair and a black air which I used to test.
Any combination of the black stick I had no problem.
1 Blue stick works, 2 blue stick doesn't and 2 black and 1 or 2 blue fails.
BIOS is set to default for RAM as far as I'm aware but couldn't connect at work so nothing has changed since this morning when it worked.