Well I orthose with overclock for four hours no problem nothing is hot. So then I use computer for normal use, and once again it crashes with IE, MSN and media player open.

So following your advise I put all setting's back to default apart from making sure raid is enabled again. So I orthos for four hours, and once again no problem. Open IE to look at XS, talking on MSN and listneing to music on media player, crashes once again even with all settings default.

The crash is not even occuring during a time of the computer being under load, just when I'm using it normally. It has only done since I installed RAID, though I have never ever had this issue, so I expect now that it must be because of a dodgy RAID install.

I have checked for errors using windows scan disk and HD tune error check, neither found a thing. I think my next step now is to just ref-ormat with no RAID this time and see if things go back to normal. I also thought it might be southbridge getting to hot, but just after crash it does not feel any more hot than ordinary. I guess I am at a loss of what to do so I will just re-format and hope for the best, and then maybe try round two with RAID-0 trying a different set of drivers.