safe micron DDR3 voltage

[TheHardCase]

Things that make you go hummm, my viper kit says 1.8 VDimm @ 7-7-7-18 @ 2T.
Funnything is I had to apply 1.9 VDimm real for them to operate at stock.

I also tested OCZ OCZ3P1600EB4GK & it called for 1.9 VDimm, they have problems on this Asus Striker II Extreme motherboard huge, nothing but frezzing, sticks tested fine in memorytest ect. So I tried 2.0 VDimm same problem & when I toched them they were hot! I mean hot. The OCZ are 7-6-6-24@ 2T & could not get stable from 1.90 VDimm - 2.0 VDimm Real.
I also relaxed timming to 8-8-8-24 @ 2T 1.90 VDimm & same problem.
I also moved them to slots 2 & 4 same problem.

As it stands I'm running Viper 4 x 1GB 1600MHz overclocked to 1800MHz on 2.14 VDimm - 2.16 VDimm Real, 100% Stable.
I'm going to run 24/7 & we will see what happens about voltage.
They are very cool to touch not like the OCZ hummm.

[RyderOCZ]

Trfc plays a big role in how much voltage is needed... with DDR3 pushed upwards of 1600+... Try Trfc at 72 with near 90 at 2GHz ram speed. It may allow lower voltages.

[M.Beier]

Trfc plays a big role in how much voltage is needed... with DDR3 pushed upwards of 1600+... Try Trfc at 72 with near 90 at 2GHz ram speed. It may allow lower voltages.

Interesting...
But I must admit, isnt 72 quite high in first place? I've been running 45 trfc DDR3-2000???

In my experience: ras to CAS is the true sinner when it comes to increasing voltage...

[TheHardCase]

Not sure if there is a problem ect.

I've been running straight for a good 16 hours, thing is I went to lower timmings & volts , no go.
It will not run anymore at default speed, still works at overclock posted above.
Any Idea?

[saaya]

Not sure if there is a problem ect.

I've been running straight for a good 16 hours, thing is I went to lower timmings & volts , no go.
It will not run anymore at default speed, still works at overclock posted above.
Any Idea?

hmmmm on the 790 or also on another board?
did you chek with ocz if there is a new spd maybe or some recommended memory settings etc?

So at stock it doesnt work, but oced it does?
Well maybe it degraded and now requires more volts to work stable?
That sounds more like ddr degrading though, i never heard of this from ddr3 so far. Are you 100% sure it was stable at stock speed on this board to begin with?

dinos and m.beier, the guy who posted here didnt ask for tweaking and benching advice, he wants his mem stable, not tweaked, thats why ryder recommended higher trfc, which is you can recommend really not knowing the details of his setup and what the problem could be

Thanks saaya, I think it'll help many many users a lot as DDR3 is completely new territory and this forum is not just read by xtreme hardware killers but also mainly by xtreme+safe users in general

if this thread prevents a single person from blowing his mem im happy and the effort was worth it

I remember coming back online after roughly 18 months and being new to DDR2 completely while it was quite fully accepted by then (courtsey of D9) and I know what it feels like to hunt for some honest and reliable advice within so many opinions and high volt usages. Luckily, reading where to start off with 24/7 oc settings and not risk deaths, I took Enjoys advice for volts and trusted that and he was bang on. More DDR2 experience and my findings were the same as his for D9 voltage

yeah, there are many people who post results to boost their ego and the shared information is not really useful for most people who dont want the highest scores no matter what

[TheHardCase]

[QUOTE=saaya;2892472]hmmmm on the 790 or also on another board?
did you chek with ocz if there is a new spd maybe or some recommended memory settings etc?

So at stock it doesnt work, but oced it does?
Well maybe it degraded and now requires more volts to work stable?
That sounds more like ddr degrading though, i never heard of this from ddr3 so far. Are you 100% sure it was stable at stock speed on this board to begin with?

Correct, at the time this happened I also lost vista 64 as posted to the other thread. It ran before for hours at stock & will not no matter what I try.
100% stable on overclock for now anyways at 7-6-5-18 @ 1T 2.06 VDimm real.
1800MHz 1:2 noproblem, but not stock 1600MHz 7-7-7-18 @ 2T

P.S. this is not ocz, it's viper patriot PVS32G1600LLK

[saaya]

Correct, at the time this happened I also lost vista 64 as posted to the other thread. It ran before for hours at stock & will not no matter what I try.
100% stable on overclock for now anyways at 7-6-5-18 @ 1T 2.06 VDimm real.
1800MHz 1:2 noproblem, but not stock 1600MHz 7-7-7-18 @ 2T

P.S. this is not ocz, it's viper patriot PVS32G1600LLK

alright... so it doesnt work stable at 1600, even with increased vdimm?
then its def some fsb/mem divider issue!
this is exactly what happened on 680 too, so it would make sense...

a certain fsb/mem combo would work stable and then later it wouldnt for some reason.

2,16v for 1 houre here on P5E3 Premium, no damage or degradtion. Anyone know messure points for my board? Based of this tread i will not go over 2,2 for benching with my STT ProdjectX

there should be marks on the pcb between or next to the dimm slots.
round circles where extra caps should have been placed. in those circles there are 2 dots, one is round one is quare. meassure the square dot vs ground and its pretty much vdimm. not sure its the best spot to meassure but they easiest to describe especially if not dont know the board layout of a board that well

[Achill3uS]

hmm, guys what about this...
OCZ DDR3 1600 7-7-7 Platinum kits, clocks timings doesn't matter could be at stock, but as i feed it with 1.95v+ become more unstable, and got more errors in memtest 2.01
it seems my P5K3 Deluxe absolutely hates this memorys, but in Striker 2 Extreme clocks nice, 1600 6-6-6 1.94v, 1780 7-7-7 1.94v pass
maybe d9jnl?

[Kasparz]

hmm, guys what about this...
OCZ DDR3 1600 7-7-7 Platinum kits, clocks timings doesn't matter could be at stock, but as i feed it with 1.95v+ become more unstable, and got more errors in memtest 2.01
it seems my P5K3 Deluxe absolutely hates this memorys, but in Striker 2 Extreme clocks nice, 1600 6-6-6 1.94v, 1780 7-7-7 1.94v pass
maybe d9jnl?

D9JNL. Yes, over 2.0Vdimm gives instability and errors.

[dinos22]

Interesting...
But I must admit, isnt 72 quite high in first place? I've been running 45 trfc DDR3-2000???

In my experience: ras to CAS is the true sinner when it comes to increasing voltage...

it is
for benching the lower the better as long as you don't sacrifice frequency too much heh

i seem to be at 56 for 2GHz+ on nvidia with 8-7-6-20 1T 1.9-1.96v

[M.Beier]

it is
for benching the lower the better as long as you don't sacrifice frequency too much heh

i seem to be at 56 for 2GHz+ on nvidia with 8-7-6-20 1T 1.9-1.96v

Well in my case... I just found maximum frequency bench stable, then I lowered from 60 to 42 without any trouble...
Think it was 985mhz CL6-5-5-18 PL6 or so...