I have been waiting for my PSU for ages, and it has just arrived today. I fitted all the correct cables in the right slots (checked many times). I followed the instructions on this thread: http://www.tomshardware.co.uk/answers/id-1809040/perfec...
but nothing works (also repeated this many times). i dont know if it may be a problem with my monitor i have which is quite old. I have tried plugging the monitor into my GPU and my MOBO with a VGA cable that i had to use an adapter with to make it a DVI for the GPU but that still didn't work. I haven't tried testing if the MOBO or PSU is faulty because I cant seem to work out how to connect my fans to my PSU, which i believe is how you do it (sorry if Im wrong). This is frustrating as it is may first pc build.
My PC specs:
CPU: I7 3770k
MOBO: Asrock Z75 por 3
GPU: GTX 780 MSI lightning
PSU: Corsair 850RM
Case: Bitfenix Merc Beta
RAM:Kingston hyperX performance
HDD: Kingston WD blue
Disk drive: some crappy 13 pound one