I just put everything to stock except i left DRAM voltage @ the rated 1.65v and I put IMC voltage to the lowest possible 1.1000v to try and test out that DRAM-IMC 0.5v delta problem that is with socket-1333. My delta is 0.55v and it doesn't seem to matter.
Next im gonna try getting the lowest latency's possible at DDR3 1066MHz then at DDR3 1333MHz
For some reason my system (not sure if it's ram, mobo, cpu or combination of everything) DOES NOT like it when I run my ram at the rated 1600 8-8-820. So I'm trying for mega low latency's at lower throughputs. Apparently low latency's are what benifits games the most anyway. But i am aware latency is a function of throughput * timings so I think 1600 8-8-8-20 is better than 1333 7-7-7-15. However I did see somewhere that DDR3 1066 CAS 5 kicked ass in games for the i7 920.
Cheers mate. I should have done more hunting but I wanted to make a real obvious title for others with the same questions to see.
The guy in the second forum said the absolute max IMC voltage is 1.21v though i'm not convinced. People say all sorts of different numbers. I was looking to find a hard limit from intel spec, which I think is 1.4v and also a safe max voltage for overclockers.
Ah well. I just wont stray into the red. On my board that happens above 1.3v IMC.
There are people raving about with crazy 1.35 - 1.4 IMC voltages and high overclocks but I've concluded it's best not to go there with IMC.
I have noticed Asus boards overvolt everything when using automatic profiles or even XMP profile in my case. It sets IMC to 1.3v for a simple DDR3-1600 8-8-8-20 (which has never been stable). Aside from that, I agree. Asus boards are awesome for stable overclocking and personally they have the most intuitive bios. I attempted to use a mates gigabit board but the overclocking options were scattered all over the place and nothing was very clear. I am sad that I splashed out a little on the EVO model, which is awesome, just to get my socket outdated by 1 freeking pin with the sandy bridge cpu's. And who's betting that Ivy bridge is going to have yet another socket!?
I have noticed Asus boards overvolt everything when using automatic profiles or even XMP profile
i dunno about my Maximus III Formula(since i didn't OC it yet) - but my Rampage Extreme x48, does overvolt stuff - even with ram dimms while OC'ing on auto settings via BIOS.
well - from the looks of this: http://event.asus.com/2011/mb/PCIe3_Ready/ these sandy bridge mobo's can support ivy bridge and for the first time in a long time they aren't phasing out the 1155 socket...or so they have us believing.