Damn, 450 would be nice. My board have troubles to run at 400 MHz and above. Still i running 380 MHz @ 1,55V MCH. If I increase the voltage to 1,85V MCH, I can run 400 MHz FSB with an Multiplier of 6 (~2,4 GHz). No way to run my wished 423 MHz FSB @ 2V. Something must be wrong. I using BIOS 1.2.
Other components:
E6600 (running 3,42 @ default VCore <-- I don't think it's the bottleneck)
2x1GB Cellshock DDR2 800 @ 4-4-4-12 (running fine 1:1 400 FSB)
Powercurrent Tagan480W
2x MSI7900GTO @ 700|800
Cooling is great enough (look at the pic).
http://www.feddern.org/florian/Intel/3,42GHzC2D.JPG
Can anyone help me to reach 3,8 GHz on my rig? 3,6 GHz (9x400) don't work (I increased the voltage to 1,5V --> no way still failures in ortho). I think it must be the board, because 3,42 Ghz @ 1,32V (default) are running fine. Is the powercurrent maybe my problem?