Samsung Green Ram

LtMatt · 18 Feb 2013 at 21:50

It seems like it is causing the problems. Looks like i might have to chuck 8gb on the members market.

Now im getting stable at 10-10-10-28-1T 2133 @1.5v 1.8PLL and 1.0500V VCCIO.

Back to the drawing board i go.

LtMatt · 19 Feb 2013 at 07:08

Mike306 said:
Matt, yes I got 8GB, why did you get 16GB?

Managed to clean out my system fit the new ram and fans.

Had a quick go with this, never OC'd ram before.

i5-2500K @ 4.8GHz

2133MHz 9-10-10-21 - 1T @ 1.55V DRAM PLL 1.8V

Got it stable Rofls.

2133 9-10-10-21-1T @1.5v PLL 1.7v VCCIO 1.0V

For whatever reason my board just doesn't like 16gb. Will have to sell the other 8Gb i guess.

a66as · 19 Feb 2013 at 08:45

How much difference will i see in games if i overclock my ram to 2133 from 1600?

8 Pack · 19 Feb 2013 at 10:24

2133 is the sweet spot in terms of improvements to be gained. A few FPS is obviously achievable and a generally more efficient overclock too.

LtMatt · 19 Feb 2013 at 10:40

8 Pack i just cannot get 16gb stable in my board. Any suggestions? I can get 8gb stable at 2133 9-10-10-21-1T @1.5v all other voltages at auto.

As soon as i stick another 8gb in i can't even get 2133 11-11-11-28-2T @1.575v stable. I guess its the motherboard. I've tried putting VCCIO up to 1.25v and it doesn't seem to make any difference.

8 Pack · 19 Feb 2013 at 10:52

tRFC. Slacken it off to around 296 first and try again.

LtMatt · 19 Feb 2013 at 10:58

I don't seem to have that option? Is that under third timings? Cos its not there.

LtMatt · 19 Feb 2013 at 11:03

LtMatt · 19 Feb 2013 at 13:37

Heeeeeeeeeeeeelp !!

~Mike~ · 19 Feb 2013 at 14:04

tRFC = Refresh Cycle Time

Looks like the second option under Secondary Timings (I'm guessing)

Mine wasn't stable @ 2133 either so I have dropped back to 1866 for the time being. Too busy to play around with it.

LtMatt · 19 Feb 2013 at 14:12

Mike306 said:
tRFC = Refresh Cycle Time

Looks like the second option under Secondary Timings (I'm guessing)

Mine wasn't stable @ 2133 either so I have dropped back to 1866 for the time being. Too busy to play around with it.

I got mine stable with 8gb at 1.5v but 16gb is doing my head in. I guess no more help is coming so i will play around for another hour or two then ill give up and put them on the members market.

wazza300 · 19 Feb 2013 at 14:32

see dram ref cycle time? try with 296

you should be able to get 8gb stable with 1.55v dram,16gb can need 1.65v

LtMatt · 19 Feb 2013 at 14:44

Well i tried that setting guys didn't help. So ive gone back to the drawing board.

Currently stable at 2133mhz 10-10-10-30-2T @1.55v. VCCIO @1.100v. VCCSA at 0.93125v. I heard that sometimes you need a touch or two of VCCSA and it seems to be helping. I'm slowly working down timing by timing try to be a bit more precise this time instead of making big jumps. I won't touch the second/third timings for now as i have no clue what to set them as

LtMatt · 19 Feb 2013 at 15:01

It seems like its the command mode timing of 1T that's causing the problems.

LtMatt · 19 Feb 2013 at 15:11

Yeah its definitely the command mode what is causing the problems. Any suggestions?

Now stable with 16Gb at

2133mhz 9-10-10-21-2T. 1.55V. VCCIO 1.100v. VCCSA 9.3125v. 1T results in a fail of prime

LtMatt · 19 Feb 2013 at 15:24

I don't want to jinx myself but i think ive got all 16gb stable @ 2133mhz 9-10-10-21-2T @1.56v.

wazza300 · 19 Feb 2013 at 15:30

looks good,2t will be ok,its just the cpu's imc it isnt as good as ib

LtMatt · 19 Feb 2013 at 15:41

wazza300 said:
looks good,2t will be ok,its just the cpu's imc it isnt as good as ib

Yeah ill keep trying for it but i don't think its gonna happen.

8 Pack · 19 Feb 2013 at 15:47

You have it yeah ref cycle time. this goes up when you add 4 Dimms.

LtMatt · 19 Feb 2013 at 15:50

Prime95 fails almost immediately as soon as i use 1T.