Corsair Dominator 2x2GB PC8500 DDR2

Darkstormz · 03-06-2008, 03:59 AM

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

Feel free to post your results.

Spyrus · 03-06-2008, 04:42 AM

Set 5-5-4-13 tRRD = 3 tWR = 6 and not 4 and you could go further with more vdimm

techguy2k5 · 03-06-2008, 01:31 PM

What about clocks? I could care less about tighter timings TBH. tRD, CAS, and command rate are the only really important ones anyway.

fireice2 · 03-06-2008, 07:09 PM

what chips are used in these?

3lfk1ng · 03-06-2008, 07:16 PM

Impressive speed for 8gigs. Nice to see the Maximus handle it.

Desert Igel · 03-06-2008, 11:38 PM

Quote:

Originally Posted by fireice2

what chips are used in these?

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.

Cronos · 03-06-2008, 11:45 PM

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.

Spyrus · 03-07-2008, 01:04 AM

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.

Darkstormz · 03-07-2008, 04:11 AM

Quote:

Originally Posted by Cronos

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.

Yeah my 24/7 clock is 8h Memtest86+ stable also. Thats the first thing I try.

And here is an update for ya

552MHz - DDR1104 - CL 5-5-3-13 :: tRFC 52 :: tRRD 1 - 1.95v - 4x2GB

Spyrus · 03-07-2008, 04:25 AM

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+

Darkstormz · 03-07-2008, 04:54 AM

Quote:

Originally Posted by Spyrus

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!

TinyRK · 03-07-2008, 05:55 AM

Quote:

Originally Posted by Desert Igel

Because of that low voltage they could have Powerchips.

Indeed, they use Powerchips.
They are the only ones which have 2GB strips.

Spyrus · 03-07-2008, 06:23 AM

Strips?

570 with 2.0V do they boot?

zfactor · 03-07-2008, 08:04 AM

aren't these rated for 2.1 - 2.2v anyway..??

Darkstormz · 03-07-2008, 08:42 AM

Quote:

Originally Posted by Spyrus

Strips?

570 with 2.0V do they boot?

yeah they boot into windows. But not stable. P95 crash after 2min

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

zfactor · 03-07-2008, 08:49 AM

do you think with maybe 2.1 or so they could go any higher or have you tried that?? just curious

Darkstormz · 03-07-2008, 09:01 AM

Quote:

Originally Posted by zfactor

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.

zfactor · 03-07-2008, 09:29 AM

any idea if you went to 5-5-5-15 as rated..

Darkstormz · 03-07-2008, 09:50 AM

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.

Just tried 600MHz DDR1200 using 2.1v = no go...

zfactor · 03-07-2008, 10:22 AM

^^^ awesome thanks

ChaosMinionX · 03-07-2008, 11:13 AM

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?

Spyrus · 03-07-2008, 12:54 PM

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

clon22 · 03-08-2008, 08:26 AM

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.

zfactor · 03-08-2008, 08:59 AM

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

mu||et · 03-08-2008, 09:15 AM

Please some one try 4-4-4-12 1:1 @ 450 2.1v. I cant stand 5-5-5-15.