Every now and then my PC decides too Shut down, all the fans inside are working correctly as they should be, but taking an interest in the PSU its getting really warm, do you think its the PSU overheating?
It is. Four screws at the back top round the fan. If you are a bit unsure about connections swap them one by one before you put it in. You can also test it before fitting it but do make sure you connect every thing before you switch power on as the PSU as to have a load for it to work. And can be burned out if you just try it without anything connected to it.
Not only that, I rang evesham and they suggest its the location of my pc and where it is part of the back of the desk were its home is there needs too be a hole, so for the time being when I get that done I took the PC out made temp accomodation on the side of the desk