Originally Posted by Cyro999
Hey guys, not sure where to ask; got some sammy wonder RAM that seems fine @2200 9-10-12 @1.6v (didn't cut down volts yet - if i can); I hear you can set tRAS very low (this guy set 9-10-11-16..) and i think i remember being able to do it before, and being confused as to what to set it to.
I'm not really sure now - i went 9-10-12-20 w/ 1t and now 104 tRFC, Is 20 too high? Too low? Is lower better? What should i set it at, if possible?
Any replies/knowledge much appreciated, thanks!
my hynix cfr, which i understand performs kinda similar to d-revs, i can set that 4th value to 16 with no problem, as long as none of the other timings are equal or higher than it.
It also appears to have zero impact on performance, I get the same scores in copy/read/write/latency/benchtime with 16 as I do 36. Appears to have zero impact on stability as well. Usually I see people set it around 25-35 on the speeds and CL's we're messing with.
I was a little concerned considering i've heard my board (z87x-ud3h) adds like 0.03 - i'm not really sure what's up or if that's true.
Same board as you know, my DRAM voltage is always exactly as it's reported in software according to various voltmeters I've used. It's the only voltage that's extremely consistent with software. And .03v is nothing, the difference of 1.65 and 1.68v means nothing. Your voltage vPeak and vDroop is far more than .03v. If a certain voltage isn't killing something, .03v extra won't.
As I told you a long time ago, 1.65v is perfectly safe, up to 1.8v+ even is perfectly safe (though it seems samsung doesnt scale with voltage like other ICs and does best at ~1.6, 1.65v from what I hear).
Your RFC (refresh cycle time) seems low, I've never been stable on any ram below 105. I'd really set that like 120+, come back to it later. That was a huge headache for me a while ago, I set it like +10 over BSOD value and i believe it was what kept me crashing on the ~15th hour consistently when I went to finalize.
You're RDRD_dr/dd and WRWR_dr/dd are super tight, try 8, maybe 7. Also RDWRs and RTP are tight, as luke mentioned. You could probably tighten WRRDs
Try out the asrock timing configurator, i like it more then memtweakit. But really I use all asus, asrock, and gbt twl for ram checking.Edited by Belial - 12/12/13 at 10:02pm