Corsair CM2x512-8500 @ DDR 972 MHz | 4-4-4-8 | 2.24v

[Timbosan]

Yesterday i purchased a 1GB kit of Corsair CM2x512-8500 v1.4. At its rated voltage (2.2v) it is running 100% stable at 972 MHz | 4-4-4-8. Here's some initial tests:

EDIT: i tried same timings and speed at 2.16v and stability is the same as with 2.24v

[Forsaken1]

Nice.

[Timbosan]

Ive done some more testing. I have to say i am quite impressed with this ram At 972 MHz it is at 4-4-4-4 with only 2.16v. I read that some people had experienced 8500 rated modules (various brands) not being able to run at their rated speed (1066 MHz) so i used the 1:2 divider and ran system at stock with ram at 1066. I tried it at 5-5-5-12 with only 2.16v and it passed 2 hours of orthos. They can do rated speed at tighter timings with less than rated voltage, so all good there.
I will be pushing it in the next couple of days to see what they can do I will post some more benchmarks tomorrow. Here's a 3+ hr orthos to show stability.

*anyone care to speculate on what IC's these sticks have?

[Don_Dan]

These result are very nice. Especially the bandwidth you achieved is very impressive I think!

I speculate that these sticks use D9GMH chips...

[Timbosan]

The read bandwidth in the first post is bugged i didnt realise i have re-done the everest benches with a new version. The read bandwidth is much more realistic than 14.4k lol.
I did some hardcore gaming at DDR 972 4-4-4-4 @ 2.16v and it wasnt totally stable. Increasing it to 4-4-4-8 and pulling in the subtimings made it 100% game, orthos and memtest stable.
The full timings are 4-4-4-8-5-30-5-12-6-12 @ 972 MHz @ 2.16v. It may handle a tRAS of 5 - 7 and slightly tighter subtimings but i havent finished testing. Anyway these are great modules

[Don_Dan]

Yes, now the bandwidth is a bit more realistic...
When I saw it I just thought, damn, how can he get 80% more than I get at 800 4-4-4-11 1T... but anyway, it's still very good RAM!

ICs?

[Timbosan]

Yes, now the bandwidth is a bit more realistic...
When I saw it I just thought, damn, how can he get 80% more than I get at 800 4-4-4-11 1T... but anyway, it's still very good RAM!

ICs?

I found that allendale cores cause incorrectly high read scores with everest versions <3.5. Now using v4.01.xxx its correct.
I'd love to know what IC's these use too, i cant remove the spreader as its epoxied on afaik.

[Don_Dan]

According to the RAM List and the version you posted above, they should use Micron D9GMH (B6-3).

http://ramlist.ath.cx/ddr2/

[Timbosan]

Yeah thanks i saw that, but i have checked corsair's ram list and my modules havent been added yet, they are 2007 modules. All previous versions of this ram has used D9XXX, so i assume thats why the DDR2 ram list says micron.