X48 Rampage Formula Preview.

[neo_rtr]

If you change PCI-E frequency, you should slightly raise Vsb same time since higher PCIE clock results in higher DMI clock since same clocking source, and believe me you don't want to cause instabilities whether constant or random there. DMI carries all SB inbound traffic, for all devices attached to the root hub or branching off.

Thanks for the post. very good info..

Can one assume that at the same time the SB should get higher volts as well.

I was running 105 on the PCI change it to 110. i could not see any difference
but then again i did not try the +1,+1 stepping so its my bad.

[Alien Grey]

Thanks for the post. very good info..

Can one assume that at the same time the SB should get higher volts as well.

I was running 105 on the PCI change it to 110. i could not see any difference
but then again i did not try the +1,+1 stepping so its my bad.

I'm surprised that it runs so well with the PCIE frequency at 110MHz. I tried to change the frequency with one of the previous BIOSes to 101 or 102MHz but my stability was gone.

With BIOS 0902 it works very well at 110MHz but I should run some more tests to see that everything is really stable at that frequency.

I didn't change my SB and SB 1.5V voltage. I left it on auto and the voltage didn't change so I think that it isn't necessary to change the voltage.