CORSAIR CMT6GX3M3A2000C8 - 2000 8-9-8-24 1.5v

[Linuxfan]

hmm again dual channel vs triple channel 1366 is a big difference

and 2100mhz Cl7 under 1.65v.. on a elpida hyper on air..
that is something i would love to believe
the best i have seen was SAE's. and that was at 1.66v
the two gtx2 which i used one stick from my c7's also does that.

the rest all do 2100mhz Cl7 at 1.68v

so not sure whats ure friend is smokin.

Could you test the max this 2000C8 kit will do on air at 1.74v in a Superpi32M run at 7-7-6-19 60 1T? Interested in seeing how it will perform.
Does it scale past 1.74v on the dominator air cooling?

[websmile]

Could you test the max this 2000C8 kit will do on air at 1.74v in a Superpi32M run at 7-7-6-19 60 1T? Interested in seeing how it will perform.
Does it scale past 1.74v on the dominator air cooling?

A test on 7-7-7 with PSC is not very useful- maybe with 7-8-7, normally on 7-9-7 you can reach a decent result but PSC only run x-+2-x, or if you are lucky, x-+1-x at acceptable frequencies

[Linuxfan]

A test on 7-7-7 with PSC is not very useful- maybe with 7-8-7, normally on 7-9-7 you can reach a decent result but PSC only run x-+2-x, or if you are lucky, x-+1-x at acceptable frequencies

Maybe 7-8-7-21 60 1T then?

[Barr3l Rid3r]

I have asked for 6-8-6 @1.68v...

[JenBell]

cst...got the same corsair ram and 2x kits = 12GB as well. Can u recommend some RAM timings I could try for 1900mhz? Also I see u running the ram with 1.5v. Dimms are advertised to run at 1.65v - should I drop the vdimm?
Thank u very much in advance. Mobo is ramapage 3 extreme, if it helps.

Update. So managed to find the quite alot out about the RAM from the XMP profiles built in. The 1.5v vdimm is for lower speeds. Looking at cst's...maybe 1.65v might not be required as I am aiming for 1800-1900

[westsider]

they are very good

2000 6-9-6-22-1T-80 ist 24/7 possible with 1.65V

[westsider]

I have asked for 6-8-6 @1.68v...

trcd8 qould be upto 1800MHz okay

[cstkl1]

Sorry peeps
Will post requested except 1800 as i havent yet done 225x21 stable

Currently clocking r3e
Which is weird on rtls and doesnt like low voltage
2k c8 but does 2k c7 easy

West dude no it cant do 6-9-6-24 under 1.65
Btw ure clocking on tbe ram is auto. Its easy to do 2k on r3e
My bet is this sticks are about the same as 2400 cl9s
While the 2533cl9 is same as the 2k c6s
Clocking psc u get to reduce vdimm when u hit
A scaling block on tRAS. tRCD increase just maintains scaling. This where the big difference with hypers of 2k 7-7-7-20/21 that does 1.6v

[cstkl1]

Set ure tfaw to 28 for 6-9-6-24

[geobot24]

I just recieved this kit...
What is the best that these memories can do? They are only for benching...
2000, 2100, 2200+ with what timings?

[westsider]

2070 6-9-6-24-1T 1.65V
2200 7-9-7-26-1T 1.65V
2400 8-9-8-27-1T 1.65V
with cas9 and trcd10 you can hit 2.6GHz easily if your IMC does it

[westsider]

I just recieved this kit...
What is the best that these memories can do? They are only for benching...
2000, 2100, 2200+ with what timings?

i have already posted results on our forum

[geobot24]

Thanks for you response...
I know that powerchips dont like high voltage...What about this kit with over 1.65v and how much difficult decreasing trcd from 9 for better results?

[westsider]

trcd9 is a must have above 1800MHz
it doesnt scale up higher with voltage
i wouldnt go over 1.75V
it wouldnt bring any result either

[cstkl1]

hmm westsider

think u better be specific that ure testing only at 2x2gb on a p55

eh x58 clocks compareable on same voltage is around 150-200mhz less.

[_AntLionBR_]

This model can use 1600MHz 6-8-6-20 1.5v Stable same?

Here, it gives error in the second week in LinX with this configuration. Best result here was 1600MHz with 7-7-7-20 in the past 20 LinX - 24/7.



What would be the best result in a totally stable 1600MHz @ LinX? Thanks!

[cstkl1]

it is rev 7.1A??

my first kit does 2k c8 at 1.5v
second kit does 2k c8 1.52
third kit does 2k c8 1.52

i know i kindda love this stick atm..

and first kit now is doing 2150 8-10-8-27 at 1.58v ( increasing from 24 to 27 i get reduce the vdimm from 1.62v to 1.58v.. )

all with airflow pro ( led stuff) and it doesnt causes any form of instability so far.
http://www.youtube.com/watch?v=59xEZzESoyY


hmm can admin of this site update the bb code
http://www.vbulletin.com/forum/showt...ouTube-BB-Code

[_AntLionBR_]

it is rev 7.1A??

my first kit does 2k c8 at 1.5v
second kit does 2k c8 1.52
third kit does 2k c8 1.52

i know i kindda love this stick atm..

and first kit now is doing 2150 8-10-8-27 at 1.58v ( increasing from 24 to 27 i get reduce the vdimm from 1.62v to 1.58v.. )

all with airflow pro ( led stuff) and it doesnt causes any form of instability so far.
http://www.youtube.com/watch?v=59xEZzESoyY


hmm can admin of this site update the bb code
http://www.vbulletin.com/forum/showt...ouTube-BB-Code

Yes, Rev 7.1A 10303024.

Here, I can not stabilize 6-8-6-20 with 1.64v. Best result was 7-7-7-20 1.64v. 7-6-6-18, 7-7-6-18, 6-8-6-24 gives error in LinX.

[cstkl1]

Yes, Rev 7.1A 10303024.

Here, I can not stabilize 6-8-6-20 with 1.64v. Best result was 7-7-7-20 1.64v. 7-6-6-18, 7-7-6-18, 6-8-6-24 gives error in LinX.

Well i knew a few ppl who couldnt get any good clocks on it also.

also u do know this is PSC chips right

relax the tRCD's
ure reducing latency .. increasing voltage.. without much increase in bandwidth..

see the glops on these...
i just increased the tRAS from 24 to 27 with around loss of bandwith only 100mb but reduced the vdimm from 1.62v to 1.58v set ( DMM read 1.519 peak that i saw during this run)

i7 920 1.375v.. alphacooled
MSI GTX480 eked

[_AntLionBR_]

Well i knew a few ppl who couldnt get any good clocks on it also.

also u do know this is PSC chips right

relax the tRCD's
ure reducing latency .. increasing voltage.. without much increase in bandwidth..

see the glops on these...
i just increased the tRAS from 24 to 27 with around loss of bandwith only 100mb but reduced the vdimm from 1.62v to 1.58v set ( DMM read 1.519 peak that i saw during this run)

i7 920 1.375v.. alphacooled
MSI GTX480 eked

http://i287.photobucket.com/albums/l...1/d375d234.jpg

After increasing the PLL to 1.84v from 1.88v, I managed to stabilize 1600MHz 6-8-6-20, but with 1.64v voltage, unless it occurs blue screen.

VTT 1.335v
IOH 1.18v
DRAM 1.64v
PLL 1.88v
IOH I/O 1.58v



Any tips for me to try lowering the voltage to 1.5v?

[cstkl1]

have u tried 6-8-6-21

eh pll so high for cpu at low ram speed

[cstkl1]

After increasing the PLL to 1.84v from 1.88v, I managed to stabilize 1600MHz 6-8-6-20, but with 1.64v voltage, unless it occurs blue screen.

VTT 1.335v
IOH 1.18v
DRAM 1.64v
PLL 1.88v
IOH I/O 1.58v



Any tips for me to try lowering the voltage to 1.5v?

ok been looking over at ure bios
can u change all the dref voltage to exactly 1/2 of ure vdimm.


ok for 2k 8-9-8-24 use that voltage for 6-8-6-24
make sure tRTP is at 6 ( reading in cpu tweaker... ) ( the reason i said reading cause like R3e set 8 in bios is 6 in cpu tweaker which is correct while evga set 6 get 6.. )
the psc sticks on this only functions at 1-6, 9+...7 and 8 is not possible with mine

vtt ... if u need 1.335v for 1600 uncore 3.2
ure vtt for 2000 should be 1.535v

RTL use 57/58,60,61

[_AntLionBR_]

have u tried 6-8-6-21

eh pll so high for cpu at low ram speed

I reached the limit values of the voltages of the options in the BIOS @ 4.0GHz i7-975.

VTT 1.335v
IOH 1.18v
DRAM 1.64v 1600MHz 6-8-6-20 1T
PLL 1.86v
IOH I/O 1.58v
vCore 1.30000v (CPU-Z 1.28v)



I will try to reduce the PLL then, and increase the tRAS to 21. Thanks!

[westsider]

[geobot24]

2000 7-9-7 with 1.56...

Can you please show a 32m spi run with same clocks but with 6-9-6?