Printable View
I wanted a thread for these babies. Corsair Dominator PC8500 2x2GB DDR2.
Got 2 kits of them about 3 days ago.
Here is my 24/7 result so far with 4x2GB
533MHz DDR1066 - CL 5-5-3-13 tRFC 52 - 1.89v
http://img208.imageshack.us/img208/5...irv3am2.th.jpg
Feel free to post your results.
Set 5-5-4-13 tRRD = 3 tWR = 6 and not 4 and you could go further with more vdimm
What about clocks? I could care less about tighter timings TBH. tRD, CAS, and command rate are the only really important ones anyway.
what chips are used in these?
Impressive speed for 8gigs. Nice to see the Maximus handle it.
Because of that low voltage they could have Powerchips. Elpida would have needed more VDIMM and I don't know any other cheap 1 Gb chip with overclocking headroom.Quote:
Originally Posted by fireice2
Have you tried Memtest86+ ? Will it pass test 5, several times at least?
It's strange i can't run any of my eight sets of G.Skill PC8000 at anything lower 5-5-5 yet many people report 5-5-3. I find it hard to believe.
5-5-3 is possible at 533 MHz. But to past 540 5-5-4 at least and 570@5-5-5 at least
with powerchips and stable.
Yeah my 24/7 clock is 8h Memtest86+ stable also. Thats the first thing I try.Quote:
Originally Posted by Cronos
And here is an update for ya
552MHz - DDR1104 - CL 5-5-3-13 :: tRFC 52 :: tRRD 1 - 1.95v - 4x2GB
http://img91.imageshack.us/img91/752...irv4hq3.th.jpg
Wow very tight secondary for those sticks.
tWR = 4 is also tight for them this is good not only tRRD=1!
But i am not sure if you can keep that to reach 570+
Testing now. But I cant run 570MHz with 2v or less. CRAAP! :down:Quote:
Originally Posted by Spyrus
Indeed, they use Powerchips.Quote:
Originally Posted by Desert Igel
They are the only ones which have 2GB strips.
Strips?
570 with 2.0V do they boot?
aren't these rated for 2.1 - 2.2v anyway..??
yeah they boot into windows. But not stable. P95 crash after 2min :)Quote:
Originally Posted by Spyrus
Quick test update. Will let them run 12h later tonight and see if they´re stable.
560MHz - DDR1120 - CL 5-5-3-13 :: tRFC 50 :: tRRD 1 - 1.98v - 4x2GB
http://img183.imageshack.us/img183/4...irv5pz4.th.jpg
do you think with maybe 2.1 or so they could go any higher or have you tried that?? just curious
Well with the timings above I might be able to get 5-10 more MHz.Quote:
Originally Posted by zfactor
any idea if you went to 5-5-5-15 as rated..
575MHz DDR1150 with 2.1v using 4x2GB is no problem at all with those timings.Quote:
Originally Posted by zfactor
Just tried 600MHz DDR1200 using 2.1v = no go...
^^^ awesome thanks
So what NB voltage, and of the various memory settings available are you guys using for your kits?
My current...
NB Voltage - 1.61v
DRAM Static Read - Enabled
AI Clock Twister - Strong
Transaction Booster - Disabled (1)
Also what subtimings for your sticks?
With which memory divider?
They are all good but twister strong needs more nb voltage.
And disable 1 if on 5:6 you have pl = 8.
I am using pl=7 and twister moderate on fsb=450@5:6@540-5-5-4-13
I have a pair of Corsair 6400c5dhx 2gb x 2 ver.4.1.
They say is Qimonda.
http://futron.sg/forum/viewtopic.php?t=321
My results are very similar to yours. :D
well i ordered these up ... ill report when i get them. i may end up getting 8gb though as they have extended the rebates on them.. hmmmmm
Please some one try 4-4-4-12 1:1 @ 450 2.1v. I cant stand 5-5-5-15.
Did the same thing. Can't wait to test them out.Quote:
Originally Posted by zfactor
You do realize that higher timings + higher clockspeed outperform the lower timings in just about every imaginable benchmark?Quote:
Originally Posted by mu||et
I tested 4-4-4-12 @ 2.1v without really playing with it, it got into windows fine.
And my other testing...
http://i11.photobucket.com/albums/a1...g?t=1205006764
BIOS Settings:
DDR2 1081 (5:6)
5-5-3-13-4-60-4-4 (TRFC=60, these sticks love it.)
NB Voltage - 1.65 (1.7v actual)
DRAM Static Read - ENABLED
AI Clock Twister - STRONG
Transaction Booster - Disabled (0)
This is actually stable. In comparison to my previous tuning I gained
READ - 353MB/s
WRITE - 105MB/s
COPY - 179MB/s
LATENCY - 2.5ns (went from 56.7ns to 54.2ns)
Also got some gains on my L2 cache speeds as well.
EDIT: For comparison.... My previous bench.
http://i11.photobucket.com/albums/a1...Capture-16.jpg
DDR2 1081 (5:6)
5-5-5-15-4-55-4-4 (TRFC=55)
NB Voltage - 1.65 (1.7v actual)
DRAM Static Read - ENABLED
AI Clock Twister - STRONG
Transaction Booster - Disabled (1)
Good RAM. Nice scaling. I hope the slightly-lower-binned PC8000 4GB kit has something close to that level of flexibility (although I certainly don't expect higher clocks).
I am really impressed with this kit... if it werent for Maximus's broken dividers, they would be running DDR2 1128 @ 2.1v with same stuff.Quote:
Originally Posted by techguy2k5
Oh really well..........Quote:
Originally Posted by techguy2k5
500 2:3 5-5-5-15 2T @ 2.0vdim
SiSoftware bandwidth = 7175 / 7332
http://img144.imageshack.us/img144/3861/50034zt4.th.jpg
562 2:3 5-5-5-15 2T @ 2.1vdim
SiSoftware bandwidth = 7415 / 7332
http://img20.imageshack.us/img20/613/56233nf6.th.jpg
450 1:1 4-4-4-12 2T @ 2.1vdim
SiSoftware bandwidth = 7553 / 7576
http://img20.imageshack.us/img20/9161/45011mt7.th.jpg
500 1:1 4-4-4-12 2T @ 2.1vdim
SiSoftware bandwidth = 8517 / 8517
http://img219.imageshack.us/img219/7726/ss1vm7.th.jpg
Thought I would post what I'm running.
http://aycu22.webshots.com/image/462...7156934_rs.jpg
holy crap..... what voltage are you running?Quote:
Originally Posted by TheHardCase
he is on an Nvidia boardQuote:
Originally Posted by ChaosMinionX
probably much harder on intel boards
2.1vdimm according to the Everest sidebar widget on the right of his screenshot :)Quote:
Originally Posted by ChaosMinionX
Nice and thank you.Quote:
Originally Posted by TheHardCase
Really nice 2Gb sticks, i might go and get one kit.
Hi ChaosMinionX, those sticks are amazing & to run that timing with 4gigs at stock voltage 2.1v on the 780i should show people some true high performance from the new Dominator.Quote:
Originally Posted by ChaosMinionX
I ran the new OCZ reaper X HPC PC2 -6400 4GB & PC2 - 8000 4GB @ 1000MHz both sets would not even come close & would BSOD ect. even on 5-5-5-18. Stay away from OCZ memory.
Ahhh, that would explain it 780i :)
I am still trying to make X38 cooperate :p:
EDIT: Anyone got some Maximus Formula settings on BIOS 1004 for this kit? I am still having a hardtime getting it stable..
Wow, DDR 1200 speed out of a 4GB kit. Very nice.
i wanna see his MEMSET
thats not the ddr2 1066 kit though its the next one up
i wouldn't exactly call sandra a benchmark, sorry ;)Quote:
Originally Posted by mu||et
he he he he he
too right mate
non of that sandra crap pls :D
I had a g/f named Sandra. She never told the full truth either :DQuote:
Originally Posted by dinos22
hahaha, priceless...if there ever was a quote that should be sigged.Quote:
Originally Posted by DerekT
wow i would have waited for the 9000 stuff if i knewit could do 1200.... man...
That is still impressive thou.. :)
Are these corsair's better performers than the GSKILL F2-8500CL5D-4GBPK?
http://www.newegg.com/product/produc...82E16820231166
Anyone seen available retail 2x2 PC9136 yet?
Edit nm
Have you seen the price at zipzoomfly? Very Nice! $119 after MIR
http://www.zipzoomfly.com/jsp/Produc...tCode=10008006
^^^ thats where i ordered my sets from..
me 2 they come tomorrow!
I hope this set is better than the GSKILL F2-8500CL5D-4GBPK. Since I ordered both :)
a local freind i have is at 1150+ with these 24/7... still wish i could have got the 9000+'s though now that i see them doing 1200.... these should do what i need though
Thankfully I was able to cancel my order for the G.Skill. I called Corsair to verify these module would work the P5E and corsair said yes! :D
I ordered them!
Havent seen those anywhere to be honest... some guys have them thoughQuote:
Originally Posted by GunslingerOCS
I've spent too much money lately looking for a kit that will do 1200, or anywhere close to 1180 that is Orthos 12 hour Stable. No luck yet.
Hopefully, you guys will find some gems among stones. Good luck, eagerly awaiting Orthos/OCCT stability screens.
Man...I am very tempted by these.
I have yet to find a 2x2 Kit that can do over 1100 on my Maximus Formula.
These might just be the ones!
To order, or not to order?
mine will be here today :)
I just felt like pointing out that the reason why the bandwith is huge with the tigher timmings in your case isnt solely related the timming themselves, but the fact that your FSB is running much higher as well!Quote:
Originally Posted by mu||et
375 vs 450 & 500...
You could run 450 or 500FSB and use a 5:6(x1.2 sigh sorry mistake) divider (if your ram can do 600). I think youll notice better performance overall:)
tRFC buddy, thats all you needed to play with ;)Quote:
Originally Posted by TheHardCase
I have 8GB running 1140 here 2V or so, tRFC is key due to density. I noted from another forum post Corsair are setting tRFC to what looks to be 77 on some of their kits...I dropped 300MB/s im memtest86+ doing this but yes I clocked a LOT higher.
i have 54.5ns with 4GB/52trfc vs 53.5ns/25trfc with 2GB.
If using trfc = 77 for example i need 10-20MHz more for same bandwidth i guess
Have you been able to get 1066+ with AI Trans Booster Disabled (0) and DRAM static read + Ai Clock Twister STRONG?Quote:
Originally Posted by Spyrus
I cant get it stable at all with all of it, I have to turn off DRAM Static Read.
Ordered!
As you can tell I am not the best OCer in the world but I will try it, thanks.Quote:
Originally Posted by VinnyG
Quote:
Originally Posted by ChaosMinionX
Anything I run above 1066Mhz needs DRAM Static Read disabled (using 333Mhz or 400Mhz FSB Strap). Tht goes for all the kits Ive tried...
Yes Dram Static Enable and Strong twister on 5:6 with 1.5V past 550+ PL=7 (disabled/0) though i prefer less nb voltage and for 24/7 i am using moderate.Quote:
Originally Posted by ChaosMinionX
I will have to try that but with a FSB of 450:) I should be able to get my PL to 6!Quote:
Originally Posted by Spyrus
Try it with Static disabled, and with AI Trans Booster on STRONG. See if your results are better... according to Everest, my L2 cache latency goes way up with Static enabled/ moderate and not much RAM performance gain. When I have it disabled/STRONG it goes back to 3.5ns instead of 4.7... again no significant impact to RAM performance.Quote:
Originally Posted by Spyrus
my set did 1165 with all auto settings at 5-5-5-15 with 2.1, not sure which setting in my bios corresponds to trfc in memset, it seems to auto set at 52 though.
450x9with 4:5's they are happy at 1125 at 2.0v
which version are they?
Rattle has the PC8500 stuff.Quote:
Originally Posted by zfactor
Impressive speed for 8gigs
Its a very impressive kit tbh....Quote:
Originally Posted by diezel
Dram Static Enabled gives 0.1ns and Twister from Moderate to Strong gives 1ns more. But the latter as i have already told needs more nb voltage (0.1+).Quote:
Originally Posted by ChaosMinionX
Try them with Moderate to see what the modules can do without bothering what the mch can do for now.
no i mean 2.1, 2.2, 2.3 etc.. should say on the stick itself im curiousQuote:
Originally Posted by ChaosMinionX
little stability testing
This is the best i have seen at this voltage.
Could you post the memset for this?
TRFC value there?
Im going to order these after being very disapointed with my OCZ ReaperX PC2-8000 4GB kit... even with SPD-Z flashed to 52TRFC for auto thanks to OCZ forums still cant get 5-5-5-18 even with 2.15V to get close to 1000MHZ on a 780i mobo!!
Back to the Corsair Bandwagon it would seem :up:
they are not bad for $120 shipped, they wont do 1000 at 4-4-4-12 for me it seems or 1200 at 5-5-5-15, i didnt mess with it too much though as I dont think they will do it, unless anyone has some tricks.
memset posted
This memory does not work with the DFI P35 UT motherboard :shrug: I tried for several hours last night to get it to work but couldn't even get Windows to begin installing...I put my Crucial Ballistix 2gb kit back in and system began working fine as usual...I was really hoping to have some fun with this 4gb kit too...oh well....hopefully DFI releases a BIOS update soon to fix this issue.
well that sucks i hope it works with the dfi x38... or ill be real ticked off..
Has anyone confirmed these with the P5K Deluxe?
LOL see post #79Quote:
Originally Posted by Synthetickiller
After reading that, I wish I was kidding. I need some sleep!Quote:
Originally Posted by Rattle
Thanks.:up:
It looks like were not too far off from 1200 mhz 2x2 Gb sticks :)
And can anyone explain what is wrong with sandra? The benchmark that is, not my freaky annoying old supervisor at work XD.
I also get around 8500 mb/s bandwidth with 4-4-3-10 @ 1000 mhz. Its just not very happy with 4 dimms though hence why I want 2x2 Gb. But I thought cas 4 at 1000 mhz is really good.
There is a possibility that Intel Chipset cannot handle 1200MHz with 2GB modules on P35/X38, because some modules already reached that on nvidia chipsets.
I noticed at zipzoomfly that the MIR expires tomorrow. You guys think that for OC'ing a q6600 on a p35, this ram would be idea? I'd rather not spend more than 130 w/ shipping and the rebate makes that possible.
So I bear the question, is this kit better than almost any other 4 gig kit out there?
It is on the top 2 (Evo CL4)
Anyone have problems with OCCT and the RAM test function? My current settings pass Memtest 86+ 1.7 and 2.01... as well as Prime95 for 20hrs on Blend Priority 9 with Round off checking.... but OCCT RAM test fails 30mins in.
Any ideas?
No problem here
Weird, well I think im going to ignore OCCT. And trust P95 and Memtest, because the RAM/CPU test runs for 15hrs with OCCT no errors, its just the RAM specific testing. :shrug:Quote:
Originally Posted by Spyrus
Yeap and P95/orthos is even more sensitive to memory than memtest and 32M
Hah, are you serious?Quote:
Originally Posted by Spyrus
P95 is joke for testing any serious amount of RAM, especially 8 GB.
I can pass custom runs of P95 for overnight (set to utilize the full 8 GB, instead of a tiny amount of RAM like normal), yet fail with those same settings in HCI Memtest in 20 minutes.
Super Pi isn't even worth discussing for stability.
In order of stressing RAM (& NB):
Linpack
HCI
Memtest86+
...
...
P95
...
...
...
...
...
...
...
Super Pi
And regarding this thread, nice results with that kit indeed :)
good point, i had ocz 9200 reapers that were running 1200 ddr stable but they were 2gb (1x2), but i changed to the 4gb (2x2) dominators after upgrading my sys to a q6600 from a E6600 (wanted the e8400 but sold out @ the time) e6600 and reapers are now retired to duty in my work pc @ happy stock speeds.Quote:
Originally Posted by Spyrus
i love these dominators, although just wish they could do 1200. well 1140 will hold me over until i go ddr3 when the insane prices come down...
570 is all what you need for 4GB for 24/7. That is not easy with 4x1GB for 24/7.
And 30MHz is not so noticeable loss (but 2GB more is more than helpful)
Hey guys, what the complete settings for stock speed?
5-5-5-18 2.1V
But what about sub timmings etc? What should i set those to?
TRFC auto comes out @ 68 when doing 1600fsb 3:2 @ 1066Mhz mem
:shrug:
I can't find these in stock anywhere now. I should have pulled the trigger last week on newegg ugh