Albatron PX915G Pro
 

We were able to hit 252MHz FSB with the PX915G Pro, but only when we had the Northbridge set to +.3V. We already have discussed the temperature at which the passively cooled heatsink runs, but it’s even worse with +.3V. This might not seem like much, but it’s a 20% increase in voltage over the standard application. We took out our external temperature gauge and found that near the core, the Northbridge heatsink was hitting 65C!

http://www.mbreview.com/px915g.php