It turned out it was just a problem with the BIOS version. I flashed it for version 1011 and it works fine now.
I tried overclocking, increased from 2.2GHz to 2.26GHz and everything ran fine, also increased my Corsair from DDR400 to DDR420... it unfortunately wouldn't run 3D Marks 2001 SE without shutting it off, I increased the voltage a little bit and the problem was still not resolved.
I set everything back to stock speeds and ran 3d marks, still no good. It turns out it was the software that was corrupt so I have downloaded it again and it runs np, got 17k score at stock.
Will overclock again tonight after I have eaten, i'll tell you how it goes