No. My plan was to run Memtest anyway and I had already started it by the time i saw your reply. Stupidly, it didn't cross my mind to verify the memory settings were correct first. Memtest has passed twice now though so maybe I should leave it then and make sure all the Bios settings are correct.
Ran Memtest for another 5 passes, whilst I was out. No errors again. Should also note that I can run Furmark without any issues and when I ran Prime95 it didn't crash when I ran Small FFT's. So i guess maybe its the power supply? I knew I shouldn;t have skimped on it.