Originally Posted by wzrot
4.4 GHz seems to be the sweet spot on my 4960X. Takes "only" 1.265 V for 10 hours P95 27.9 run. At 4.5 I have still some investigation to do, as the GFlops decreased without proper VTT/VCCSA tuning and it needs a lot more Vcore, around 1.35 - 1.37. So nowadays I use LinX 0.6.5 for a few runs to check that the GFlops are what they should be, there might also be a lot of fluctuation between runs if the voltage is not there. When LinX seems good to go, I'll go for a 8-10 hour P95 run. I haven't gone for the lowest Vcore yet at 4.4, I probably won't bother trying to go lower. BIOS 0024.
Hard to say what the Gflops should be, but at 4.4 GHz I am getting 170-171 GFlops and my memory runs at 1600 MHz.
Rive BE release date was confirmed today on ROG forum:
That's the same exact thing I've been seeing with IVY-E on two different boards.
VTT/VCCSA is very crucial, especially with high memory densities. Once you hit your frequency wall, you need at least 0.1V more, for that 100Mhz, the last 100Mhz ( 200mhz total ) is the hardest.
Out of the 4 chips I've tried
1) First walled at 4.3 @ 1.23V, 4.4 needed 1.32V anything higher needed 1.45V plus without stability (3326B667)
2) Walled at 4.3, 4.4 needed 1.42V and temps were much too high (3328A???)
3) Walled at 4.6 @ 1.295V degraded after benching at 4.8 @ 1.375V and 1.4V with 1.22VTT and 1.175VCCSA Needed 1.31V final for 4.6V (3326B667)
4) Walled at 4.4 @ 1.285V didn't push for more this was done on X79-Deluxe (3326B667)Edited by Brenny06 - 11/8/13 at 5:39am