well, after a few hours of playing about i have finally got the 4870x2 working properly.
flashed it to the latest bios with same problem, so flashed it back to an earlier version and now evrything is OK
Bios was showing 12.1v, so as said above speedfan is rubbish as its saying 6.8v now.
anyway thanks very much for all the input.
flashed it to the latest bios with same problem, so flashed it back to an earlier version and now evrything is OK

Bios was showing 12.1v, so as said above speedfan is rubbish as its saying 6.8v now.
anyway thanks very much for all the input.