Corsair TWIN2x1024-8500 @ DDR1200

[kone]

My 5400UL just send to RMA, But i don't think is the High voltage killed it, Because i last time run it is on 2.2v, Maybe the mainboard, I don't sure

[Sav]

CM2X512-8000UL XMS8005v1.1= Micron 2-733 Rev A (it's D9)
CM2x512-8500 XMS8505V1.1 = Micron (64Mx8) 2-800 CL5 Die Rev D
I'm not sure,but I think it's the some

[Hazzan]

I dont think so ! 8500 D9

[largon]

Anyone have a visual of the chips on 8500UL? What's the 3-letter code after "D9"?

btw. I have no idea what Hazzan is saying half of the time.
It's that there's just too many words missing from his posts.

[Deathspawner]

I have a feeling they will be D9GKX just like the ones OCZ and Super Talent have been using. I'd crack open my heatspreader if I knew I could do it without snapping a chip.

[Hazzan]

My 5400UL just send to RMA, But i don't think is the High voltage killed it, Because i last time run it is on 2.2v, Maybe the mainboard, I don't sure

Same like me ! I never high voltage or vdim for my 8000UL, but now my 8000UL dead !

[Bluebeard]

i also think it is same D9GKX as ST and OCZ using - tested here all 3 kinds - same behaviour...

[Redbeard]

No.. Heard the same stuff you did. I should have the 8500 back from RMA early next week and may pull off the spreaders.

Don't do that, you'll hurt the ICs. Besides, here's a shot of the ICs we use to screen for the 8500s (and possibly some other unnanounced future modules)

[Deathspawner]

Hmm, those are 333MHz chips. Seems kind of odd when there are 400MHz ones available.

[Vassili]

I think the 8500UL is D9, But is not the Fatbody D9, They don't like voltage

Sorry but with is the difference between them? Fatbody D9 and non-Fatbody D9? (Technical?)

Don't do that, you'll hurt the ICs. Besides, here's a shot of the ICs we use to screen for the 8500s (and possibly some other unnanounced future modules)

That is good support, thanks! I appreciate that.

[Redbeard]

Hmm, those are 333MHz chips. Seems kind of odd when there are 400MHz ones available.

We do IC screens here to determine which ICs to use based on batch. The IC is identical, the only difference is at what frequency Micron sells the IC. If we buy a bunch of 333 MHz ICs that do 1066, we'll gladly do that instead of buying the 400 MHz part that does the same.

We do have both in the building, some of our 8500s are made with the D9GKX part as well depending on which screen resulted in better yields that day.

Honestly, we'd rather buy the 333MHz part and screen them to 1066 or higher because that means that you guys can buy 1066 modules cheaper than if we were forced to use the 400MHz part.

But performance comes before price at this level, obviously. If it doesn't hit 1066, it's not an 8500.

[Deathspawner]

Hah, I didn't recognize your name, or else I would not have questioned it. Thanks for the explanation.. makes sense to me.

[proth]

Just got my new pair of 8500 back from Corsair's RMA.
Will not be keeping this pair...
Max 5-5-5-15 = 1120 Mhz
Max 4-4-4-12 = 860 MHz

Does meet spec though!! Rock solid @ 1066 5-5-5-15

Corsair's RMA service is great..

[Deathspawner]

Let us know how you make out. I can't run mine at stock and get through a single memtest #5 run. Maybe an EE would help, lol.

[proth]

Lol....

[vapb400]

Proth I may be interested in your memory
what do they do at 3-3-3-x?
what do they do at 3-2-2-x?

[Deathspawner]

It seems that the modules are 100% stable for me with MemTest for Windows, but the DOS version will freeze on them right away. First I've seen that happen.

So, maybe it's not my modules, but rather the DOS MemTest that's screwing with me. Nice 1120MHz btw. How much Vdimm did you need for that?

[Hazzan]

My 8500 can run 505 4-4-3-4 with vdim 2.36 volt stable SPi 16m !

[Bluebeard]

667 3-3-2-8
800 3-4-3-8
1000 4-5-4-12
1066 5-5-4-15

all @ 2,2V

1104 5-5-5-15 (2,3V)

memtest stable (5 loops) @ P5WD2

no more Vdimm available atm

[Steensen]

@Alonso: Is that with 2 or 4 dimms 8500?

[Bluebeard]

2x512MB

[Deathspawner]

Well, I had some fun with these modules tonight. Best stable for me seems to be DDR2-1080 at 2.4v, with 5-5-5-15 timings. Had a miracle DDR2-1100 at 2.4v with 4-4-4-8 timings work for a little while too.

[proth]

Excellent bandwidth you got there with that 820...You might want to try and run that CAS4 all the time because there's a big boost in performance. Do the Vcore mod and maybe you'll see 4GHz

[Deathspawner]

I can actually do 4.2GHz stable unless I am stressing both cores to 100%. 4.1GHz is completely stable as is though. I just had to use that setting to hit that exact mem Freq.. I didn't actually expect it to boot.

I may try that Vcore mod tomorrow.. maybe that will help my 4.2GHz become stable-er.

[Hazzan]

Well, I had some fun with these modules tonight. Best stable for me seems to be DDR2-1080 at 2.4v, with 5-5-5-15 timings. Had a miracle DDR2-1100 at 2.4v with 4-4-4-8 timings work for a little while too.

Fantastic man ! how about SPi stable ???