I have just done this as I thought my pc was ill. turns out its the psu causing issues! gutted in a way at spending £468 buying an i5 7600k, msi z270 plus, new cooler and 8gb. I hope ocuk will come through on the psu rmaBe careful what you wish for, I thought I had killed my CPU a couple of weeks ago when I was experimenting with a more aggressive OC but then when I started looking at upgrade options it seemed like a lot of money to pay for not very much i.e. about £400 for a 7600K considering I'd also need a new mobo and RAM. In the old days if I was going to drop that sort of money I'd be wanting something approaching a 100% performance increase.