Originally Posted by Madellga
And I just want to add 1 more to Raja's numbers....
My E6600 rig runs 24/7 stable 1.375VCore 1.65Vmch 2.05 Vdim at 9x387 (3.4GHz). I can let Orthos run up to 24 hours, no problems.
But I cannot run the E6600 9x400 Orthos stable, no matter what. I tried everything, the best I can do is to get Orthos running for 40 minutes. For this to happen, VCore goes to 1.525, Vmch 1.75 - higher Vmch does not help in this case (tried all the way to 2V), the issue is at VCore.
Using Vmch 2.0V and high VCore (1.55), I can run FSB420 and enter memtest, sometimes I manage to get Windows desktop and run Superpi, but it is not stable.
On the other hand, the E6400 from my second rig can run 8x400 on the AW9D up to 12 hours Orthos stable, VCore 1.375V, Vmch 1.76, VDim 1.95 (Plat). This E6400 does not go much higher than 3.2GHz, to go further I have to reduce the multiplier but experience is similar, Vmch has to go up and even so it is not stable.
I did all: AS5 on the NB/SB, cooler on NB, different DDR2 sticks (I tried OCZ Gold, Plat and Corsair C4). These DDR2 sticks run all the way to FSB450 on the Gigabyte DS4, under 2.1V
3.4Ghz is the sweet spot I decided to take, because Voltages are mild and temperatures are normal. To get just 200MHZ more, it needs all Voltages way up and not worth imo.
I spent a lot of time trying to tweak, reading hundreds of posts, bought different components to try and make it work, it simply doesn't happen. I decided to accept the facts and stop the greed, as 3.4GHz is already a good result.
The mobo is good but I have the feeling it could do better. When I look at the reviews and see what we are getting here, I feel somewhat cheated.....
From now on I only trust what "normal" people post here (including some proof :fact: ...).
I'm tempted to try the P5W64, but I had so many issues with Asus in the past that I'm keeping distance from it.