Constant grinding noise from PC

RTFM d3!

d3 is gonna get himself killed, lol

Haha. I'm looking in the direction of his house now for signs of a power cut.

Quote from D3ads

Damnit.. sorry for the dumb questions but I'm not a tech wizard. These white plugs that go from the PSU into the various peripherals/motherboard all look the same but do they have to be connected up in exactly the same way if I get a replacement? It all looks so complicated

Only the small ones, like they are talking about, the big flat ones with four thicker pins in them are called "molex" and are just your computer's version of power cables. With those if you can plug it in you win.