Quote Originally Posted by Ol'Baditude View Post
Why is 1.65v the maximum DRAM voltage? If you absolutely must run at 4.2GHz, just increase your VTT and bump up the VDimm to match and keep the .48 difference. It's not going to hurt anything, assuming you have your RAM properly cooled.


That being said though, I only ever run my VDIMM higher than 1.65v when I'm benching.
No need for me to raise it to run a stable 24/7 4.2GHz overclock fortunately, since this system hums along just fine with a .30 difference(VTT=1.37v/VDIMM=1.66v).
Yes, I raised DRAM to 1.70 and popped Vtt to +100 mV and that enabled me to boot Vista at 4.3 (EIST Turbo 21x205) (mem x8 @ 1600) (HT off). Can't pass prime yet, but it always fails at the same test, so I think I'm getting real close to something stable.

My Mushkin redline uses the NON hyper elpida chip, so I'm probably ok up to about 1.75 VDIMM keeping the Vtt/VDIMM ratio < .50. I have memory fans on the sticks plus a high airflow case (CPU and NB on water).

I'm sort of focused on 4.3 as that was my goal going into my build. So, I'll probably keep the memory in the 1.70 - 1.75 for 24/7 operation. I actually use CPU bound software frequently.

BTW, I'm real happy with the Bloodrage board, it seems to getting the most out my "meh" 920 D0 (Vcore default = 1.265) that basically seems to hate life at BCLK 205.