having a hard time to get IBT PASS @ 485 FSB.
necessary CPU VTT rise significantly from 1.2v (471FSB) to 1.32v.
Hard locks (mostly) / BSODs / reboots occured when attempting to run IBT when I leave all CPU GTLs in auto.
With a slight tuning of CPU GTLs IBT does run but only 80% hit rate (8 out of 10)
So that means still has a way to go...I guess to run 500 FSB a minimum of 1.4v VTT will be a must...