If you are, i'm interested to know whether you're finding stability through upping VTT or PLL voltages? I expect there are no takers here, but worth a try! 
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Re: Anyone here pushing 450mhz-500mhz FSB?
I did try, but it kept BSOD'ing when it used alot of RAM and I really could not be asked to mess around with it anymore, right now its just at a basic 400 x 8.5 - I take it by your Q9550 running @ 3.8 you have been able? What settings do you have? -
Re: Anyone here pushing 450mhz-500mhz FSB?
CPU Vcore: 1.31v
CPU VTT: 1.22v
CPU PLL: 1.57v
NB/MCH: 1.24v
RAM: 2.12vComment
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Re: Anyone here pushing 450mhz-500mhz FSB?
I can't go past 400 mhz that well, I'm at 400 nowComment
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Re: Anyone here pushing 450mhz-500mhz FSB?
I think I'm at 400.... I don't even remember because it's been so long... lol
no voltage changes, btwComment
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Re: Anyone here pushing 450mhz-500mhz FSB?
I'm pushing 450x8.5 I've pushed up to 465 booted was stable through prime 95 but lowered due to temp preference.
Every chip is different and should be pushed at small increments at these speeds and voltages to get the best outcome.
my VTT is at 1.4 and PLL is at 1.51 I would not shoot right out and use these setting they may not be right for you and may even be lower than what you are already using.
Each system is different as you prob already know. These are according to software readings I believe I recall reading my VTT much lower checking it myself.
I just noticed your voltages. During testing I want to say my VTT was around 1.2 in the bios and checking it inside the case as it was showing different using software after in windows.
VCore is 1.36Comment
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