It isn't stable at more than 1.7Ghz I have found. at 1694 Mhz it is stable as hot as it has got at 1.73Ghz it isn't stable and 1.77 or 1.8 Ghz it isn't stable at all. I think it needs a bit more voltage and have located a chip on the motherboard which looks the candidate. I really want to adjust the I/O voltage adjuster as I want to try and squeeze as much as I can out of the onboard graphics - I can't find a suitable chip though . Does anyone know what I ought to be looking for. Any reference nForce I/O chips or typical MSI ones?