Anyone Try Corsairs 2 gig PC3500 LL Kit??

[Kunaak]

I have a set of this stuff burning in at the moment, doing 2.5-3-2-6-1T at 2.6 volts, running 11 x 225 so far.
it's been burning in in memtest 86 for the last 43 hours, on test 5.
this test apparantly runs the ram at max load, and does seem to heat up the ram pretty good.
measuring the temps, with my DT-200, I see it is at about 121 F to 125 F, and is pretty toasty to the touch, but it's still not given even a single error.
I am gonna give it another 2 days, before seeing if it does any better.

early tests I was able to run about 230 at cas 2-3-2-6-1T for about 2 hours, before it would error... that was with the default test though.

240 is the best I got so far from it, but thats at cas 3-3-2-8-1T.
this ram, is extremely finicky so far.
it takes almost nothing to make it crash, then get that one setting just right and Boom... another 5 mhz from it.
very very finicky ram so far.
in reviews I seen other people doing 260-270 with this exact ram, but I can't even do 250 with it, no matter what timing... but with how finicky it has been just getting 240 out of it, it really wouldn't suprise me, if it's just one little setting holding me back.
it did after all take alot of tweaking to find out where 240 was stable.

(2.8 volts, 3x LDT, 1.65 volts chipset, load optimized defaults, set only Cas, Ras to cas, TRD or TRP?, and Tras, then leave everything else alone, and then solid)

anyways, I am just curious to see if anyone else has given this ram a shot, and what you can do with it.

[EnJoY]

Try messing with skew, preamble, idle counter, async latency...and finally, drive strengths. I guarantee you one of these settings is holding you back.

[bachus_anonym]

I don't think I have seen many members showing off their 3500LL here...

I've played with 4400PRO, which supposedly has Infineon CE-5 ICs on them, just like 3500LLPRO... Eric, If you want, take a look at my OCing report, maybe it will give you some ideas. But results from 3500LLPRO I've seen elsewhere are mixed. Some are hitting a bit over 250Mhz, but some are stuck at around 230MHz as well.... Hit 'n miss, just like with everything :)

[Kunaak]

well, Burning in for 3 days straight seemed to pay off big.

cas 2-3-2-6-1T stable at 230, 2.8 volts.

cas 2.5-3-2-7-1T stable at 250, 2.7 volts.

can boot at 260 cas 3-3-2-8-1T, 2.6 volts... but it errors at 7 minutes, in the full test... so I will burn it in even more.
still testing, but I got alot of waiting to do, cause I am gonna let it burn in for a few more days, before getting down to business.
plus, I need to put my main computer back together...

[bachus_anonym]

Have you run any benches yet, Eric? Particularly, some 3D and maybe 32M? How does it do under Windows?

[Kunaak]

Have you run any benches yet, Eric? Particularly, some 3D and maybe 32M? How does it do under Windows?

no your gonna think this is ridiculous, but I haven't even tried to get into windows yet. all I been doing is tweaking this ram for a hour or two everytime, then boot back into memtest, and let it run for a few hours on test 5.

I come back 10 minutes later, to see if it errored, then if it did, reboot, and change one setting, reboot, and see if that makes it stable.
it usually takes me about an hour of tweaking to get one setting 100% stable.

like at the moment, I am trying to get 250 cas 3-3-2-10-1T 100% stable, and at the moment, it appears to be about 98% stable.
it will error once per pass, on the 97% completion of test 5 about once every 10 passes, so it's still erroring... but very very little.

so I almost have 250 100% stable.
at the moment, I want exceptional stability.
see, I can pass the entire test at 250, cas 2.5 -3-2- cause theres such a long period of time, between tests 5, when I let it run the entire test, about 20 minutes or so between each time it will reach test 5 if I run the entire test.

but at that same setting, if I just let it run test 5 straight, it will run for about an hour, then start giving tons of errors.
so it appears stable, but over time, will slowly get alittle worse.

changing to cas 3 fixs that, and lowing the voltage to 2.65 volts seems to help alot, but I haven't found that sweet spot where I can get 24 hour stability from it yet.
thats what I am aiming for.

so I am going overkill in burning in, and stability testing.
the ram, is in my DFI Ultra D, and just runs everyday, all day.
while I play around on my main PC.

it's almost ready, to start some windows testing.

by the way, this is for a review I am doing.
thats why I want absolute stability, not just 90% stability for a few hours.
I don't like doing half ass jobs on reviews, thats why I am being so methodical about this.

heres alittle to look at.

http://www.xtremesystems.org/forums/attachment.php?attachmentid=42115&stc=1&d=1136932870

[Kunaak]

got 250 stable.

I think I have 255 stable now too.
it's getting a cool 3022mbs at only 255 cas 3-3-2-10-1T.
I tweaked a few settings since I think 255 is starting to be the limit of what I can expect for 100% stability, and the ram seems to be doing great.

250 is really untweaked.
255 is very tweaked.
so I will be amazed if it makes it to the couple hour mark of test 5.
but it's doing good so far... so who knows.

:D

http://www.xtremesystems.org/forums/attachment.php?attachmentid=42184&stc=1&d=1137041235

[bachus_anonym]

Damn, aren't you bored with that Memtest yet, Eric? :D Got to Windows for a quick bench? ;) I hope that I'm wrong but something tells me you're not gonna be as much stable in Windows as you are in Memtest... Proof me wrong, please. I never bothered with Memtest since TCCD...

[high5]

looking good so far... but as bachus said, Windows stability remains to be seen.

btw, i personally use Memtest (~20 mins of #5) only to make sure current settings will boot into Win w/o problems.

[Kunaak]

Heres some stuff in windows.

32M.

I can verify now, that 230, cas 2-3-2-7-1T is 100% stable, and easy, doesn't need clockgen or anything to get into windows, never freezes or anything, works solid.
with clock gen I can get up to about 238 cas 2-3-2 it always freezes at 240 though. thats at 2.7 volts.

250 cas 3-3-2-8-1T is also easy, and boots right into windows, but this is done with 2.5 volts. anything more then 2.5 volts, errors out.

255 cas 3-3-2 is almost stable in windows. but will randomly freeze every once in a while.

for low latency so far, 230 is the max for easy stability,
for slightly slower latency, seems 250 to 255 is my max.

however, I still think burning in even more, will yeild more results.
but Bachus wanted the Windows testing, so I got to it :D

http://www.xtremesystems.org/forums/attachment.php?attachmentid=42231&stc=1&d=1137118077

http://www.xtremesystems.org/forums/attachment.php?attachmentid=42232&stc=1&d=1137118077

[high5]

very nice Kunaak! especially the 2-3-2@230MHz part... :up:

i'd seriously consider this Corsair should they release it without those crappy LEDs. i hate that stuff.

[bachus_anonym]

Whoa! Nice, Eric! I'm also very impressed with 229MHz 6-2-3-2.0-1T :up: This is exactly what I managed to get from 4400PRO @ CAS2.0.... How's 3D looking? Can you bench at 250MHz? No freezes or anything? You shouldn't have as this little "3D weirdo" is hitting at higher clocks but have you tried it yet?

Man, really nice results so far! Looking forward to seeing even more :toast:

[Kenetixx]

Any more news on this ram yet , i just got offered a pair cheap and was thinking about it?

[Kunaak]

no, no news yet.

unfortunatly, this ram does not like running in the yellow slots of my DFI ultra D at all.
I mean, loses about 30% of its overclockability.
since I just put my phase change unit back into my main PC... I had to move the ram to the back, to make room for the cooling head...

ever since then, it's been totally downhill.
this ram, just does not seem to like the Yellow slots at all.
in the last 2 days, I have changed the CPU's twice, and that did nothing.
I had been contemplating cutting my cooling units mounting hardware to make room to use the orange slots...
but that would just weaken the strength of the mounting head when I use this on LGA775 boards...

looks like I am gonna have to take the whole damn thing apart, and continue doing my tests on air only, like I was originally...
I just don't have room to be able to use my phase change hardware, and keep this ram in the orange slots... :(

[high5]

yes, I know about doing it at 200.
but does anyone have any shots at 235 or higher like they guy a few posts ago claimed?

cause honestly, if that were so, I would wonder... why would anyone want to run cas 3-3-3-8 at 280 if the same ram can do cas 2.5-2-2-5 at 235 to 250? that wouldn't make much sense to me, so I want to see it myself.
again, at Anandtech they claim they got to 250MHz 2.5-2-2.

but i must admit i don't remember many users posting such setting... maybe b/c they all shot at 300MHz. :)

but i've seen it a lot with 2×512MB Ballisitx though...

EDIT: how on earth did my post get up here? i replied to Kunaak's last post in this thread. :confused:

[Kunaak]

How Common is Cas 2-2-2 for 2 Gig ram kits?

I can't recall seeing any doing these kinda timings...

http://www.xtremesystems.org/forums/attachment.php?attachmentid=42891&stc=1&d=1138530536

[ozzimark]

a lot of the ballistix can do that, and 2.5-2-2 up to 235-250mhz :toast:

[Kunaak]

can I see this?

I haven't seen that anywhere.
I've never seen a 2 gig ram kit, run ras to cas 2, unless at extremely low speeds like 170 mhz or such.

[high5]

do some searching, several members did 2-2-2@200MHz with Ballistix 2GB kit.

IIRC they also did it at Anandtech in their 2GB kits round-up.

but this is the first time i've seen it on Infineon.

[kraggy]

Woah! Nice burn in bro. I actually have a set of this exact ram coming my way at the moment. I'll subscribe to this thread for burn in reference.

Thanks Kunaak! :clap:

*edit* exactly which ICs are on this mem??

[Welz]

very goof stuff here

[Kunaak]

do some searching, several members did 2-2-2@200MHz with Ballistix 2GB kit.

IIRC they also did it at Anandtech in their 2GB kits round-up.

but this is the first time i've seen it on Infineon.

yes, I know about doing it at 200.
but does anyone have any shots at 235 or higher like they guy a few posts ago claimed?

cause honestly, if that were so, I would wonder... why would anyone want to run cas 3-3-3-8 at 280 if the same ram can do cas 2.5-2-2-5 at 235 to 250? that wouldn't make much sense to me, so I want to see it myself.