***Asus Rampage III Extreme Owners Thread***

[zoson]

What do you think about using loadline calibration on this board? If i need 1.4v for 4.6ghz, is it better for the cpu if i set 50% LLC, and the idle voltage is higher, dropping on load, or set 100% LLC, and have lower voltage in idle, so it climbs to 1.39v on load?

I think it's good in all situations to have LLC 100%. My chip is very unhappy when there is vdroop. It may be a chip-to-chip thing, but it seems all the heavy overclockers use it.

Increasing the uncore to 2x the ram speed should see a significant improvement in performance, your better off running the ram at 1600mhz uncore 3200mhz.

Eva2000 compared uncore and performance and the results proved uncore really effect performance.

Seems the opposite for me. More gflops at 2ghz 9-9-9-25-110-1T mem with 3.6ghz uncore than 1600mhz 7-8-7-24-88-1T mem with 3.2ghz uncore. I tried this in diagnostic mode last night, also. Still ~60gflops with all mem.

I played with vQPI up to 1.425v last night. 1.4120v allowed me to get my uncore up to x19(3.8ghz), but I couldn't hit that magical 4ghz. The step from 3.2 to 3.6 only needed .0125v increase. The step from 3.6 to 3.8 needed .062v! Almost 5 times times more!!! I think I need 1.48v+ for 4ghz uncore with my memory.

1.425v and pcie freq of 104 allowed me to fully stabilize 210bclk tho! I don't think I want to run 20x210 for 4.2 instead of 21x200 tho... I don't think the difference will be that much, and the added volts bring my temps up from 84c max linx to 88c max.

Things I still want to do some more:
Retest with higher vQPI while dropping ram to 2T. This should help with uncore stability, I think?
Try to get linx stable with 4.5ghz HT Off just to get into the 4.5ghz club. There was a 990x shot of 25x180 doing 91Gflops with 6/6 instead of 6/12! My goal is to beat that with 6/6.

Also thinking about getting an external rad box. Maybe one of those 9x120mm deals. Was also considering like an xspc radstand. Plumb those things in with some QDC's so I can switch it in and out of the loop easily. For 24/7, the triple 120mm rad setup I have is fine, but it just lacks the capacity required for those higher clocks. I see everyone doing 4.5 with like 70-80c, and I'm doing 4.2 with 80+...