Quote Originally Posted by ci2kla View Post
Not likely that a Q9550 will hit a wall @ 471...sorry I have to disagree with you
With all GTLs on auto IBT can pass 10 tests with 1.2v, 4003Mhz.
Apart from CPU GTLs, NB GTLs becomes more important as well.
For my example, E8400 need +20mv to get a certain FSB run smooth. But for Q9550 w/ RE, +70mv for vNB GTL is the sweet spot, +60 / +80 setting or add more vtt will cause IBT calculation errors that's my finding so far. Probably now the vtt is higher then vCore (1.206v VS 1.192~1.2v) maybe that explained the problem but I'm not sure...need more time and testing to find out. Will post more soon
And i have to disagree with you.
IBT stable means you have no problem with your CPU stability and that is basically it.
Try to run Prime95 Blend mode and stress you Graphics card and all other components on your system and see if you can do that without problems.
See my sig and you will know what i mean.