So i ordered an EVGA Supernova 650g from Amazon, a bargain at £65 i thought. The first one i received made a strange whirling sound, so RMA'd it. 2nd one came, and this one made a strange crackling sound, so RMA'd that too. 3rd one came today, plugged it in, and it makes a strange whirling sound AND a quiet electrical cracking sound. Obviously, i'm a little annoyed about this!! I'm not going to get a 4th (funnily enough). Can anyone recommend a replacement for this please? I'm not sure what to go for, and don't want to spend much more than i did on this one. Thanks for the help!!!