Quote Originally Posted by justin_c View Post
schiuz, have you even played with the gtl reference voltage settings? thats all you need to get 3.6ghz, not 1.58V.
Thank you. I am "playing" with the GTL settings a lot, trying to find something good to be Prime stable. I am using Orthos Blend test . What version of Prime95 do you suggest me? My OS is Vista Ultimate 32.

I read you post here http://www.xtremesystems.org/forums/....php?t=155373: your consideration were rellay heplfull for me, this one in particular: use rmclock to disable tm1, tm2, and extended throttling. if you don't do this, the multiplier will drop down to 6x if you go somewhere in the 80C range.

Quote Originally Posted by virtualrain View Post
Ok, several things to consider here...

First, we know your CPU is stable at 3.4GHz and a reasonable 1.45VCore.

Keep in mind that the DFI undervolts the Vcore by about 0.07V and then droops an addition 0.05V under load. So to get an equivalent of 1.48V under load with the DFI you are going to want to max the CPU Vid at 1.6V... even to hit 3.4GHz.

3.4GHz is 377x9 or 425x8... Forget about the 425x8... hitting 400+FSB with a quad is extremely difficult on any board... you were lucky to achieve that on the EVGA... not many can do that... it's like winning the lotto. You should just go back to the eVGA with results like that.

With the DFI it may not be possible or would take an endless amount of tweaking GTL. Hence in my opinion you should aim for 377x9 and by the sounds of it you could use either BIOS to do this... certainly the locked multi version. The reason you may not be able to hit 400x8 is possibly due to the particular NB silicon you have on the DFI... perhaps it has a wall or hole there. Also keep in mind that the DFI undervolts the NB like crazy so you really need to crank up the voltage. You should be using something like 1.6x Volts on the NB I think. Also, my NB has holes... try going up in 5MHz increments from 360 and see if any of them work... I found my board wouldn't post at 360 but was perfectly stable at 380 (for example).

Ultimately, I don't think your issue is BIOS related at all (although I share your frustration with the various versions)... perhaps you just have unrealistic expectations for the silicon you have in hand (trying for 400+ FSB)?
Thank you for answering, sorry for beening so late but I was busy.

1) I know that this motherboard drops a lot on voltages, so I am trying to use proper voltages.

2) Probably I will go back to the eVga, but I wanna try again to make this DFI work, and I hope that a better BIOS will be relased.

3) I know that all the chips are different, and probably the one that I have on this moteherboard in the NB is not so good.

4) The fact is that I have problems in booting only using the 2CTST BIOS... With the other BIOS is it not a problem to boot and to run 400Mhz FSB, I have temperature problmes in that case. I will try to change CPU and to thake a G0, I will also try a Phase cooling system. I am sure that the 400+ FSB will not be a problem.

I really think that my problem is BIOS-related. If I could set 6x multi on the 4CTST I am sure that it would be fine to make the system stable @ 400Mhz FSB or more. I will see what it is going to happen when the new CPU G0 and the new cooling system will arrive.