I've just got to the end of my first build and I went to power up, got a nice post and then the psu started to make a constant loud buzzing along with a repetitive clicking sound. The psu is a Akasa basic 350w, I can't see any obvious mistakes that I've made in the build so I was hoping that someone here could please help, thanks in advance.
Edit - It's not the psu at all, it's actually the hard drive making some very odd noises - a constant loud buzzing along with a squeaking - a bit like a rusty swing! The drive is an 250GB Hitachi HDT721025SLA380 Deskstar.