MEMORY Voltage Scaling, please contribute...

[enzoR]

noone posting resutls!

[Jupiler]

Haven't had much time to test my 2*512MB Twinmos Speed Premium sticks (AA4T / E44D) but the early test don't seem that bad.

Tested it in my DFI NF3 board, 2-2-2-5, 1T timings :

1*512MB, Memtest error free with "only" 3.35V was 252Mhz. Don't have a booster yet, still waiting for it to arrive.

1*512MB, at 3.1V, max memtest error free was 242Mhz.

2*512MB, same settings and 3.35V. Only tested it at 245Mhz, haven't tried it higher yet, but will soon. Maybe monday.

[enzoR]

pretty good for only 3.35

[Jupiler]

Thx.
Hope to squeeze some more out of it.

[jikdoc]

3.2 = 250 25 passes
3.3 = 253 25 passes
3.4 = 257 25 passes
3.5 = 258 25 passes
3.5 = 259, errors

memtesting was done with tweaks in the ocz version, @ 258x11, mem speed was 2696. best combination i found was tras8, trc 10, 2-2-2. i started getting errors at 259, so before burning in overnite, i decided to boot into windows for other benchies. tried out some everest benchies, @ 3.4v 257x12 on fx55/neo2 i got mem write: 7381, mem read: 2859, latency: 38.3. i fired up pifast and blue screened. had to clear cmos to get it to boot and computer hasn't been stable at anything but stock since. this is the 2nd time this has happened to me on a neo2 and 3rd time i've seen it happen in person, same thing happened to trans am. i can't wait to get rid of this board, dfi comes in a week.

[enzoR]

i notice these mems hit their voltage ceiling pretty fast. that jump from 3.3-3.4 is pretty big.

[Supertim0r]

my VX died @ 3.6v

[aCidbAbY]

are you going to get a new set? it is still under warranty.

[Rabbi_NZ]

Thank you for the contribution Jupiler & jikdoc

Jupiler,
if you could do some more testing from 3.1v-3.6v it would be great too.

jikdoc,
what brand of memory are you using, what size sticks, and how many sticks?
if they are UTT you will most likely get better results with Trfc=15. Everyone else cannot run Trfc tighter than 15 from what I have heard... well, they can but not nearly as high as when Trfc is 15 or looser.
would you mind doing the testing again with 2-2-2 1T Trfc=15 please?
2-1-2 Trfc 10 will effect the overclock significantly.

I have added both of your results to the first post

[Supertim0r]

are you going to get a new set? it is still under warranty.

yes i will

its was stable @ 258fsb 3.6v
pushed it @ 260fsb 3.67-3.7v and burned it like 2-3 days
it was pratically stable until it froze after 2h of memtest (147pass 6err)
rebooted = beeping / no post
finally restarted after a few hours and a clear cmos but same problem happened every reboot ("beeping")...had to wait (cool down ?) until it finally died

it could be great if they (OCZ RMA) could send me back some 4200plat for the 3200 VX + $$

errr...sorry my poor english

[aCidbAbY]

mine died to night it has been acting a little fickle lately then all the sudden it just stopped working. i did know what it was so i checked beep codes and it a ram error then it worked again. now it gives me the same beep so i try a new set and boom im back up. this ram has died for me

[Rabbi_NZ]

Sorry to hear man, what VDimm did you run 24/7?

Seems a few have died round these forums... between the VX & Booster there must be a few RMAs going OCZs way.

What cooling did you use?

Look on the bright side though... if I was doing an RMA I would be glad it's with OCZ and not another company

[Supertim0r]

mine died to night it has been acting a little fickle lately then all the sudden it just stopped working. i did know what it was so i checked beep codes and it a ram error then it worked again. now it gives me the same beep so i try a new set and boom im back up. this ram has died for me

same exact problem as me !!!
look post #85

[jikdoc]

@ rabbi

my mistake, trfc is 15, trc is 10, tras is 8, 2-2-2. when i wrote 2-1-2 i was referring to trw, twr, etc timings. i'm referring to the timings in ocz memtest 1.4 under the a64 options menu.

i'd like to add 2 things. voltage scaling as we are recording has some flaws as we're not accounting for the effects of burning in. i'm sure that i could run my mem at lower volts, now that i've burned in a bit than i could before. the results i'm reporting are from virgin sticks.

my sticks are VX, 2x512.

i noticed my timings did affect my stability, i was at 260 2-2-2-7 and was getting a few errors every 2nd or 3rd pass. i loosened timings to 2-2-2-8 and got no errors for 50 passes. perhaps i was exactly at the cusp of stability and that is why loosening the tras helped, perhaps i was just seeing the effects of burning in.

i'm currently at 260 2-2-2-8, 50 passes stable, 3.6v

[G13]

same exact problem as me !!!
look post #85

My first post is an unfortunate one. Same happened to me on 1/17 but I was @250, 3.5V. Was running memtest fine but when I turned it down and started back up I got the long repeating beeps. Three dimms (on Neo2) and memory dead. It was happy @240 3.2V.

[Supertim0r]

My first post is an unfortunate one. Same happened to me on 1/17 but I was @250, 3.5V. Was running memtest fine but when I turned it down and started back up I got the long repeating beeps. Three dimms (on Neo2) and memory dead. It was happy @240 3.2V.

maybe a problem related to this mobo ?

[Rabbi_NZ]

@ rabbi

my mistake, trfc is 15, trc is 10, tras is 8, 2-2-2. when i wrote 2-1-2 i was referring to trw, twr, etc timings. i'm referring to the timings in ocz memtest 1.4 under the a64 options menu.

i'd like to add 2 things. voltage scaling as we are recording has some flaws as we're not accounting for the effects of burning in. i'm sure that i could run my mem at lower volts, now that i've burned in a bit than i could before. the results i'm reporting are from virgin sticks.

my sticks are VX, 2x512.

i noticed my timings did affect my stability, i was at 260 2-2-2-7 and was getting a few errors every 2nd or 3rd pass. i loosened timings to 2-2-2-8 and got no errors for 50 passes. perhaps i was exactly at the cusp of stability and that is why loosening the tras helped, perhaps i was just seeing the effects of burning in.

i'm currently at 260 2-2-2-8, 50 passes stable, 3.6v

Thanks for the update bro, keep me posted bout how high you get with 3.6v... I'm real interested in seeing your results

I realise this isnt the perfect data, but it would be impossible to only get results after X-Hours of burnin, or from virgin sticks... no one would be able to contribute.
Whether or not they are burned in I dont mined, Im not looking for the effect in burnin, Im looking for the effect of voltage scaling... but I agree, things will change after a burnin for sure.

[TEDY]

240 2-2-2-11 25 passes and more stable 3.2v

[cantankerous]

Keep it up Tedy. You are running on NF2 right? Let me know how high you can get error free with 3.2 and 3.3v volts. So far I am up to 243 error free. 244 is fine for awhile but errrors start to creep in after a bit and don't let up. I'm hoping a heat issue.

BTW... anyone know how hot their ram gets when burning in? Though perhaps not the most accurate, my P160 case has a built in thermometer with 2 probes that I can stick wherever I like. I stuck one of them right into the heatspreader through the slots on the back of the ram and while memtesting it reads about 45c. I have had it as high as 51c if I turn down my fan and have the room get a little humid. While gaming they get to about 41-42c and idle 36.

[jikdoc]

Thanks for the update bro, keep me posted bout how high you get with 3.6v... I'm real interested in seeing your results

atm i'm not really keen on running it at 3.6 given the last few posts of the memory dying. i'm going to wait until dfi comes and i can directly control vdimm through the motherboard and not have to rely on the booster.

[saaya]

mmhhh yummy

looking good

[enzoR]

yep definately!

[TEDY]

245 2-2-2-11 25 passes and + stable as rock 3.2v

W000T

[Rabbi_NZ]

245 2-2-2-11 25 passes and + stable as rock 3.2v

W000T

Very nice results TEDY! Congrats on the great memory

Once you find the max at 3.2v could you do the same for 3.1v & 3.3v please?
And, could you tell me if you chips are 44D, 50D, or 60D please?

Cheers

[aCidbAbY]

sorry about the limited results..
i forgot to write down all of them..
but im back up so far i got,

240 3.2v <<<original burnin 15hrs to start out and test,
250 ^^
254 3.3v
256 ^^
258 need more burnin
260 ^^

next burnin will be @ 250 3.2v no sweat it just takes time...

all 2-2-2-10 1T

240 and 250 are good for the same voltage... nice!