"ASUS P5Q Deluxe discussion".

[CERO]

its supposed to lock the PCI-E bus @ 100mhz. if it doesnt the PCI-E bus will overclock along with the FSB. most vid cards do not like the PCI-E bus overclocked and the card will produce artifacts, not run, or maybe even fry.

for example:
400fsb with a locked will produce 100mhz PCI-E. however if thats as far as the PCI-E lock will go then @ 500fsb you will be running a 125mhz PCI-E bus. assuming that will even run, stability will fall off quickly @ 505, 510, 515fsb, etc.

my testing along with many other comments in this thread leads me to believe the PCI-E lock is not working past 500fsb. on some previous bios' that might even be as low as 466fsb or 400fsb.

in other words.... no PCI-E lock = no serious overclocking, let alone with any real stability.

I am fully aware what PCI-E does....... but it could be anything else what is causing it not passing 500fsb... Strap/dividers and many other things

Guys i had some weird findings, I appearently flashed my board to BIOS 1201 as soon I received it. It came however shipped with 0803, So i dont have any idea if the previous BIOS might be better. The weird thing with this bios is if I want to use a a VTT of 1.12 I cant boot normally if I pass 1.22NBv , if I use 1.24NB or more a VTT of at least 1.16v is required for 400fsb or higher. And I do have some occasional Blackscreens on boot sometimes randomly.
Is there any better BIOS around then 1201? ( poiting @ 1103/0803)?