just checked my bios... oops. hadn't investigated in there before and it looks like cpu fan was running 100% all the time. have changed it now, a lot quieter
it appears there are to seperate cpu fans from my bios is this correct? changed them both to the 'q-mode' i assume q is quiet 
it appears there are to seperate cpu fans from my bios is this correct? changed them both to the 'q-mode' i assume q is quiet 