Micron D9 GMH\GKX\JKH etc club

[Ket]

Nice work

[fatguy1992]

heres the best I've been able to do, its an old result though.

Team PC6400 D9GMH

650MHZ 4-4-4-3 2.55v

Nice

[johnysb]

the best i was able to do is this(i think mobo want let me go further)
Transcend PC6400 d9gmh@2.3V

Should i attach my bios file in order to be modified?

[Ket]

1200MHz is generally accepted as a good result for D9s. Anything more is added bonus. Some may say I can work miracles with BIOS code, but you must remember its not just the BIOS that may be a limiting factor, the mobo design itself can have a big part to play, such as weather the DIMMs are single or dual phase, the length of the traces, etc.

[OC4/3]

Are all the Team Xtreem PC2-8500's that good?

Team Xtreem PC2-8500 is not bad.
Never really push my kit but it does:
1000mhz@2.05v-2.075v
1070mhz@2.3xxv
V shown is bios set
But my ram start to degrade

Here is what chip:


Good deal consider i pay ~US$100 or so

[Bei Fei]

OCZ 8500 SLI D9GMH

[fatguy1992]

Team Xtreem PC2-8500 is not bad.
Never really push my kit but it does:
1000mhz@2.05v-2.075v
1070mhz@2.3xxv
V shown is bios set
But my ram start to degrade

Here is what chip:


Good deal consider i pay ~US$100 or so

What timmings?

Thx

[CryptiK]

GKX? I have the same new style PC8500's (2 kits) and I have not pulled the heatspreaders off. Interesting to see that yours have GKX chips. Mine behave very similarly to my CellShock PC8000 GKX's so perhaps they are GKX too, but it is really impossible to tell for sure unless I removed the spreaders.

[Shiranui Gen-An]

GKX? I have the same new style PC8500's (2 kits) and I have not pulled the heatspreaders off. Interesting to see that yours have GKX chips. Mine behave very similarly to my CellShock PC8000 GKX's so perhaps they are GKX too, but it is really impossible to tell for sure unless I removed the spreaders.

That is odd for GKX to be used on the 8500 kit. Here are some pics/results of the newer 8500 with GMH: http://happy.ap.teacup.com/occ2/128.html
Note the black PCB, perhaps that is the difference...?

[CryptiK]

Mine clock just like that, 666 MHz at 2.29v real (DMM measured). I'm curious which ones I have lol. Mine are green PCB I'm pretty sure, well at least one kit is anyway.

[OC4/3]

What timmings?

Thx

CL4-4-4-4
I was surprise that my kit use D9GKX also
This kit is bought 1 month or so back

[CryptiK]

My Team 8500's do 1100 CL 4 on 2.26v real (see pic). Not impressive by any means, but just for the sake of comparison. Seem quite similar to yours.

@ OC4/3 - When you removed the heatspreader, was it stuck to the chips at all or do the screws hold it on firmly? Could you re-attach it solidly again after removal?

[OC4/3]

My Team 8500's do 1100 CL 4 on 2.26v real (see pic). Not impressive by any means, but just for the sake of comparison. Seem quite similar to yours.

@ OC4/3 - When you removed the heatspreader, was it stuck to the chips at all or do the screws hold it on firmly? Could you re-attach it solidly again after removal?

The HS is stick on thermal tape to chip.
Just remove the 2screws and take something to pull the hs off at side and take the whole hs off.
To re-attach,just stick it and screw it back
Green PCB should be D9GKX
Black PCB should be D9GMH

[CryptiK]

Right cheers, I may pull em off and have a look. I have 2 kits of the green PCB 8500's like yours.

On a sadder note, my new PC8000 CL4 CellShock sticks just died at 2.00v, about 10 hours of use at 2.00v and theyre dead. BSOD's and a lot of errors in memtest when I just tested them. I have to do an RMA now

[Ket]

That blows MY Cellshocks are still fine

[CryptiK]

yeah I know pretty crap, i have to test more im not entirely convinced may be the board but i doubt it it was fine yesterday then tonight at the same settings it was crashing all over the place and errored when tested but i'll have to do some tweaking and see. I still have another kit of them still new in the box and my 2 TG kits so I'm not ram-less at least.

[Shiranui Gen-An]

It's going to cost me $30 or so to send my Team 1200 kit back to MemoryC At least I have a Dominator 10000 kit on the way D9Gxx is pretty darn fragile.

[Ket]

I wouldn't say D9s are that fragile, my old GMH kit only died cos I didnt run a fan over them and pumped 2.55v through them I'm a bit skeptical to do so, but who reckons I should remove the heatsinks off the Cellshocks? It really seems like they hinder more than they help.

[CryptiK]

I was thinking along the same lines, I was going to put up a thread asking about whether people thought naked kits of D9 lasted longer than the kits with spreaders. They get really hot, as all the IC's are touching them and transferring heat, but also due to that fact they are keeping the IC's hot too. I'm not sure what temp each individual IC gets up to under load, but I doubt it would be as hot as the heatspreaders are.

[systemviper]

It's going to cost me $30 or so to send my Team 1200 kit back to MemoryC At least I have a Dominator 10000 kit on the way D9Gxx is pretty darn fragile.

Did you get one of the sets from the egg me too.,.,
I also just ordered from memoryc shell shock chellShock 1866's D9jnl...

[CryptiK]

I just removed my TG PC8500 heatpreader - the IC's are GMH. I noticed that there was not very much of an imprint in the thermal tape where the IC's sit against it, some have a decent imprint, others have a very faint imprint. Most of the imprint for each IC is just the top half of it, the lower half barely seems to have been touching the tape. The 2 IC's on each end are also only half covered by the tape.

I'm thinking it may be better for them to run naked, the heatspreaders don't get very hot even when using 2.2 - 2.3v (real) so I think the thermal transfer is not very good. If this is the case, the HS must be trapping a fair bit of heat and the IC's get no direct airflow. I'm thinking the IC's *should* run cooler naked.

Has anyone ever measured the temp of D9 IC's (when naked) under load with an IR temp gun? I'd really like to know hot they get.

EDIT - as an adjunct to the observation about the TG heatspearders, my CellShock kit runs very hot, most likely due to the fact they use thermal paste so there is good contact between the IC and the heatspreader. This however means that each IC is heating the heatspeader and so it gets hotter than if each IC just had it's own individual heatspreader. (Think of having 10 cpu's under 1 HS opposed to having each cpu with its own heatsink, or the dfference between a quad core cpu temp and a dual core cpu temp).

I think in either scenario, the IC's are running hotter with the heatspreaders on. The heatspreaders with poor contact trap the heat, and the heatspreaders with good contact get very hot and hold each IC at the temp of the heatspreader itself.

If anyone has an IR temp gun and can measure the temp of the IC's directly on some D9 modules it would be very useful information and much appreciated.

[ferdz_33]

@OC/43 & Cryptik,

do you happen to know the serial numbers on those kits?? so i can have an idea on what the chips on my rams are w/o prying the HS off.

I also have the same mems that I got as replacements for my TG Dark 2x1gb pc6400 because distro went out of stock with the darks and only TG Elite 2x2gb ddr2-800 and the ddr2-1066 were available when I RMAd it.

i'm currently running it stock @ 2.3vdimm in bios.

btw, mine is week 35/07

[CryptiK]

S/N on sticker on the ram heatspreader: 200805280858 (I have a feeling all PC8500's have the same serial on the stickers though)

I can't tell you the serial number from CPU-Z as I have my CellShock sticks in at the moment and I'm half way through removing the TG heatspreaders so I can't put the in just yet.

Also - you don't need 2.3v for stock speeds/timings, you should need around 2.00v for 1100 5-5-5-12. If your board overvolts, you need to set under 2.00v in bios to get 2.00v real.

Also - my CellShock kit are not dead! It was my board being unstable due to the recent warm weather, I needed more vNB and now it's stable again and the sticks are completely fine

[mad_skills]

I find it funny to see so much Cell-Shock kits dying because i know Cell uses 8-layer pcb and can withstand voltages very good and yet ppl lose them at 2.0V or so, now that's just lame, how did D9 get so moronic, they weren't like this before...

[zsamz_]

I find it funny to see so much Cell-Shock kits dying because i know Cell uses 8-layer pcb and can withstand voltages very good and yet ppl lose them at 2.0V or so, now that's just lame, how did D9 get so moronic, they weren't like this before...

whatever the d9 just takes a little ripple to
ive had 2 sets of d9gkx go bad in just minutes they were just deffective to start off with all it takes is 1 chip to go bad