Micron D9 GMH\GKX\JKH etc club

[Monstru]

I like Micron D9GMH, when they are binned properly (like in Crucial Ram kits) the results can be astonishing. I played a little with my 2 kits with GMH, you can see the results in my sig

[CryptiK]

That's some incredible speed, what board were you using?

I've had very similar results with my GMH & GKX kits, in fact my CellShock GKX kit is a little better than my TG GMH kit, but I haven't pushed them anywhere near as hard as you.

EDIT - just saw valid - you did that on a P965 commando? Wow, my old P5B would never go over ~680 with my Corsair D9's What vNB did that require?

[Dee]

Yeah I suppose so, hope your new cpu allows you to have some ram oriented fun. Thanks for doing the CL 4 vs CL 5 test, as I suspected, there is very little difference. It must be a P45 quirk as I have not seen any of them do much better on CL 4 vs CL 5 which is a little irritating.

Just did this with my TG GMH @ 2.24v This board isn't too bad now I've figured it out.

Awesome man! Seeing these kind of results tempts me to pump some more voltage through my kit. I know it can do 1300 (1302 is the highest I've taken it on 2.1v which wasn't stable) but because I don't have active cooling I'm kinda scared of killing it. There's no way I can afford another kit right now if anything bad happens! As a guess, I think it'd take at least 2.2v to get it stable, but with this kind of voltage, active cooling is a must, right? I'm not sure it's worth the extra noise from a fan. On the other hand, knowing there is significantly more performance which isn't being used, it's getting hard to resist.

I could lower the CPU overclock a little and get the RAM to 12xx easily. DDR1200 will finish Pi 32M on only 1.9v set in BIOS. It's probably not worth losing the clock frequency for a little extra MHz on the RAM, though.

What to do...

[Dee]

I like Micron D9GMH, when they are binned properly (like in Crucial Ram kits) the results can be astonishing. I played a little with my 2 kits with GMH, you can see the results in my sig

Damn!

[WaterFlex]

Guys. I have a problem. I can pass Memtest86+ the whole night with no errors. I can pass IntelBurnTest using all available memory the whole night. I can pass Prime95 and OCCT with no errors. BUT! I have errors when using Memtest in Windows !
Help me, guys!

[CryptiK]

@ Dee - You do need some active cooling, even when running 1.9 - 2.0v I use it. You don't want to risk hurting your ram. I have 2 x 80mm fans running at 70% duty cycle and they are no louder than the 120mm fans I have for cpu (each running ~1300rpm) & case and the 140mm blowhole fan on low (~1000rpm).

I have to re-do the fans for the ram though they are too far away and are supported by cable ties as I've been swapping ram in & out a lot recently.

[Dee]

Guys. I have a problem. I can pass Memset86+ the whole night with no errors. I can pass IntelBurnTest using all available memory the whole night. I can pass Prime95 and OCCT with no errors. BUT! I have errors when using Memtest in Windows !
Help me, guys!

That's strange behaviour. I wouldn't worry about Windows MemTest too much if you're stable in everything else.

[Dee]

You do need some active cooling, even when running 1.9 - 2.0v I use it. I have 2 x 80mm fans running at 70% duty cycle and they are no louder than the 120mm fans I have for cpu (each running ~1300rpm) & case and the 140mm blowhole fan on low (~1000rpm).

I have to re-do the fans for the ram though they are too far away and are supported by cable ties as I've been swapping ram in & out a lot recently.

OK, I'ma rig a fan up in a sec. My sticks are running nice and cool, though.

EDIT: Just remembered I have a ton of old 80mm's and a few low noise adapters. It'll probably not be very loud after all.

[CryptiK]

Guys. I have a problem. I can pass Memtest86+ the whole night with no errors. I can pass IntelBurnTest using all available memory the whole night. I can pass Prime95 and OCCT with no errors. BUT! I have errors when using Memtest in Windows !
Help me, guys!

Weird. The other apps stress ram a lot more than Memtest in windows. Have you tried upping the vdimm one or two notches, or bumping up the vNB or vcore to see if it makes any difference?

OK, I'ma rig a fan up in a sec. My sticks are running nice and cool, though.

EDIT: Just remembered I have a ton of old 80mm's and a few low noise adapters. It'll probably not be very loud after all.

That sounds like a plan, two 80mm fans at 5v should be fine and keep them cool. Unless of course you go into the 2.3 - 2.5v area for benching, then I'd recommend running the fans at full speed.

[Ket]

I can officially say any D9 ICs you DON'T need active cooling for up to 2.1v as the ICs won't get that warm even under heavy load, you could even skate along with 2.2v and be ok. I would advise that active cooling is used though with voltages beyond 2.1v.

[Monstru]

That's some incredible speed, what board were you using?

I've had very similar results with my GMH & GKX kits, in fact my CellShock GKX kit is a little better than my TG GMH kit, but I haven't pushed them anywhere near as hard as you.

EDIT - just saw valid - you did that on a P965 commando? Wow, my old P5B would never go over ~680 with my Corsair D9's What vNB did that require?

The CAS4 was done with Asus Commando, not bad for a chipset 2,5 years old, no? The voltage was pretty high, in the 1.7-1.8 area.

The CAS5 was done on Biostar TPower I45, because the Commando would not go above 690MHz, not even in CAS 5.

[zsamz_]

I can officially say any D9 ICs you DON'T need active cooling for up to 2.1v as the ICs won't get that warm even under heavy load, you could even skate along with 2.2v and be ok. I would advise that active cooling is used though with voltages beyond 2.1v.

every set is different
most of mine get average temp of 26c with 2 90mm fans
i got a set of d9gkx that is 29c with 2 fans 2.1v
not everyone has a lasergun to measure temps they better off with a fan no matter what the volts

[Ket]

Theres no point in adding something that isn't needed or simply won't increase any threshold. Fans for memory are only beneficial once ICs start to feel quite warm.

[Monstru]

I played a little bit more with my beloved GMH, you can see the thread here

[Dee]

I played a little bit more with my beloved GMH, you can see the thread here

Arrgh! Sick!

God bless Crucial.

[CryptiK]

500 FSB, 625 MHz


530 FSB, 635.7 MHz

[Ket]

You lie! Its not 530 FSB its 529.8!

[WaterFlex]

Guys... I can`t solve a problem which i described upper... I am being depressed...
Can you pass Memtest in Windows?

[CryptiK]

You lie! Its not 530 FSB its 529.8!

oops lol missed that

Guys... I can`t solve a problem which i described upper... I am being depressed...
Can you pass Memtest in Windows?

Don't get depressed, did you try with more voltage on ram, vNB and cpu like I suggested? If so what was the result?

I have not tried to run it TBH I use Memtest in bootable CD form, Orthos, Linpack, and gaming to test system stability, so i cannot say whether or not I pass.

[WaterFlex]

Yes, I tried like you suggested...unfortunately, no improvements...still 2-4 errors after 100 coverage.

[Monstru]

If everything works ok, why worry about 4-5 errors only in WIN Memtest?

[Slovnaft]

@Ket
I noticed the geil sticks in your sig. I just ordered a kit of the 2x1 pc8500 CL5 sticks for the family rig, any comment as to the ICs they might have or performance i might see?
should i tack on a spare hs?

[CryptiK]

Yes, I tried like you suggested...unfortunately, no improvements...still 2-4 errors after 100 coverage.

Same amount or less errors after increasing the voltage? I honestly wouldn't worry about it, I have used that app before and didn't like it. I think you are stable if you pass Orthos 12 hrs+, Linpack, and all gaming/3d marks etc.

If you are determined to try and pass it, try raising the PL to 10 and retest, try dropping your cpu clock, or try dropping the ram clock (each done separately of course). Whichever one makes you stable, you know where to start looking.

[WaterFlex]

Same amount or less errors after increasing the voltage? I honestly wouldn't worry about it, I have used that app before and didn't like it. I think you are stable if you pass Orthos 12 hrs+, Linpack, and all gaming/3d marks etc.


If you are determined to try and pass it, try raising the PL to 10 and retest, try dropping your cpu clock, or try dropping the ram clock (each done separately of course). Whichever one makes you stable, you know where to start looking.

Same amount, yeah.
I have PL=8 at the current moment. When I set it to 9 i can pass Win Memtest with no errors. I can`t understand what the hell is going on.

[CryptiK]

I thought so, it's the MCH causing the errors. Set PL back to 8, and bump up just the vNB 2 notches. What happens?