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*Official* Intel DDR4 24/7 Memory Stability Thread - Page 41

post #401 of 4908
Quote:
Originally Posted by NYD117 View Post

I've left dram clock period on auto. Have you noticed something specific when setting this to a value? I don't seem to have any problems posting or difference in performance whenever I boot till now.

EDIT:Also just for the records I used 1.42 initial and 1.39 eventual in the past. I also noticed that these DIMMs don't like 1.4 eventual with the specific configuration (I get bd even with 1.42 initial) while they sit happily with 1.39 and pass the tests I have already mentioned. I tested 1.39v initial too and in the end they seem to love it. So I am running 1.39 from boot and in OS. This RAM is very picky.

Also I would like to ask you guys how well does mint handle your cache overclock. In order for me to run cache at 4200 without problems in windows I have disabled c6 state and I am sitting at 1.22v currently stable. Without disabling c6 I get shut downs starting from 40x uncore and up no matter the voltage(windows). I understand why this is happening but I would like to ask how are things for you in mint since when I tried to boot through a live USB to run GSAT, I get a shutdown a while after before I put CPU under load. I had to dial down my cache overclock to test RAM with GSAT. Mint doesn't handle c-states the same as windows or what?
with the clock period set, any settings left on auto (like RTLs in my case) seem to remain consistent across time... less drift maybe? on x99 use 13, on z170 use 24.
Quote:
Originally Posted by NYD117 View Post

I'll give it a shot with disabled c-states to check this issue further when I install Mint on a drive.

I wanted to ask you guys your uncore and c-state configurations when you're using a linux distro, like in this case Mint, just for reference. Thanks thumb.gif
I leave the cache and cache voltage the same when switching between W10 and Mint. But I do not have a very high cache clock going in (41 at most times). I have only tested up to 4250 cache while on mint (125 strap ram at 3000) and did not notice a problem. As scone said, HCI memtest probably works the cache harder than GSAT. Gotta run a couple of hours of AID64 with just the cache stress selected... usually shakes out cache issues.


_______________
edit

think I've tighted up about as much as possible on this 3200c14TZ 32GB kit without raising the vdimm further.... (gotta try tho redface.gif )
4.7/4.1 adaptive

Edited by Jpmboy - 1/20/16 at 6:24pm
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post #402 of 4908
I was able to lower to 1.45 Dram voltage with 3600 c16-18-18-35-1

dhaine - i7 6700K@v1.424 - ASrock z170 OC formula - 4.8/4.8 - gskill 4x4 3200c16 kit @ 3600Mhz C16-18-18-35-1T - DRAM1.448v - VCCSA@1.264 VCCIO@1.216---HCI 400%




3600 c13 with 1.57 was nice but performance lost seems very minor with aida64 bench, lost only 2mb read and 2ns latency, so i'm very happy with this now and feel more safe smile.gif
Edited by dhaine - 1/20/16 at 9:06pm
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post #403 of 4908
Thread Starter 
Quote:
Originally Posted by dhaine View Post

I was able to lower to 1.45 Dram voltage with 3600 c16-18-18-35-1

dhaine - i7 6700K@v1.424 - ASrock z170 OC formula - 4.8/4.8 - gskill 4x4 3200c16 kit @ 3600Mhz C16-18-18-35-1T - DRAM1.448v - VCCSA@1.264 VCCIO@1.216---HCI 400%




3600 c13 with 1.57 was nice but performance lost seems very minor with aida64 bench, lost only 2mb read and 2ns latency, so i'm very happy with this now and feel more safe smile.gif


Thanks, will add shortly smile.gif. Our first Asrock result!
post #404 of 4908
Quote:
Originally Posted by Jpmboy View Post

with the clock period set, any settings left on auto (like RTLs in my case) seem to remain consistent across time... less drift maybe? on x99 use 13, on z170 use 24.


Each CLK period value corresponds to a DRAM ratio, with 1 being the lowest DRAM ratio. The CLK period setting forces the timing set of a given ratio, to the applied ratio (or they can be matched up).
post #405 of 4908
Quote:
Originally Posted by Silent Scone View Post

No worrries.

SA and IO voltages (Z170) scale pretty well in auto for the most part. If you're stable at the timings used now then the memory wasn't stable before. Using the test methods provided in the OP will get you closer to being stable before encountering the issues you were seeing when playing games)

Yeah it must be like that. So right now I use SA/IO on Auto, as you say it seems to scale pretty well - not applaying to much voltage.

I want to use tha google stress test that should be the best, I have put Linux Mint on a thumbdrive (USB Memory), but it wont load into Linux.
Every time I come to the what it's called? screen where I can choose to load the 64 bit or compability mode it just wen black. I can see it trying to acces my thumbdrive as it's flashing but nothing more im afraid!

Thanks again mate, for your answer thumb.gif
Edited by JnLoader - 1/21/16 at 2:27am
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post #406 of 4908
Quote:
Originally Posted by Raja@ASUS View Post

Each CLK period value corresponds to a DRAM ratio, with 1 being the lowest DRAM ratio. The CLK period setting forces the timing set of a given ratio, to the applied ratio (or they can be matched up).

Hej Raja!

You are not thinking about doing a guide for memory timing by any chance ?
I think it would help out a lot, atleast for us thats not so good at understanding those things smile.gif

E.x how you calculate different values if you example set this to that, that must also follow. You got the idea, whats the proper thing to do and whats not thumb.gif
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post #407 of 4908
Thread Starter 
Quote:
Originally Posted by JnLoader View Post

Yeah it must be like that. So right now I use SA/IO on Auto, as you say it seems to scale pretty well - not applaying to much voltage.

I want to use tha google stress test that should be the best, I have put Linux Mint on a thumbdrive (USB Memory), but it wont load into Linux.
Every time I come to the what it's called? screen where I can choose to load the 64 bit or compability mode it just wen black. I can see it trying to acces my thumbdrive as it's flashing but nothing more im afraid!

Thanks again mate, for your answer thumb.gif


Might take a while to load on a pen drive. It will go blank initially whilst loading (assuming it's installed correctly). RE SA/IO it's not so much on how little the voltage applied is. more that it's fairly ballpark on how much is normally required for stability (depending on the amount of memory installed & the CPU)
Edited by Silent Scone - 1/21/16 at 2:44am
post #408 of 4908
Quote:
Originally Posted by Silent Scone View Post

Might take a while to load on a pen drive. It will go blank initially whilst loading (assuming it's installed correctly). RE SA/IO it's not so much on how little the voltage applied is. more that it's fairly ballpark on how much is normally required for stability (depending on the amount of memory installed & the CPU)

Alright pen drive and not thumbdrive, thanks wink.gif

So then I just maybe have to wait a little longer, think I was waiting about a minute, maybe takes longer then.

I first set my IO/SA at 1.0V but Bios at 1.15 IO and about 1.25 SA!
Have read in this thread people says it pretty much best to have it at Auto, if it not go to high, and those values seems perfectly good I belive.
Someone said that IO/SA must scale properly, so the SA must then have a little more volt then the IO. So it's best to leave it at auto.

Thanks again, will report back about the pen drive thumb.gif
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post #409 of 4908
Thread Starter 
Quote:
Originally Posted by JnLoader View Post

Alright pen drive and not thumbdrive, thanks wink.gif

So then I just maybe have to wait a little longer, think I was waiting about a minute, maybe takes longer then.

I first set my IO/SA at 1.0V but Bios at 1.15 IO and about 1.25 SA!
Have read in this thread people says it pretty much best to have it at Auto, if it not go to high, and those values seems perfectly good I belive.

Thanks again, will report back about the pen drive thumb.gif

Sounds stupid I know, but check to see if it's flashing to indicate activity. If the system stability is marginal enough it can hang before hand off there as well, in which case you'll be waiting all day lol.

Only really need to touch those voltages if experiencing instability, beyond 3600 things can get heavy and you may need to make adjustments
post #410 of 4908
Quote:
Originally Posted by Silent Scone View Post

Sounds stupid I know, but check to see if it's flashing to indicate activity. If the system stability is marginal enough it can hang before hand off there as well, in which case you'll be waiting all day lol.

Only really need to touch those voltages if experiencing instability, beyond 3600 things can get heavy and you may need to make adjustments

Oops I should have update my sig on how my rig is set up. I have the RAM at 2666hz now, I think it's what I need as I have read thats good enough for my plattform. And the mem are 2666hz anyway, so I use it like that and have tried to tighten the timings a little thumb.gif

And yes mate, the pendrive are flashing for about 5 seconds maybe after I have chose what parameters to load, then it stops. So I guess something must be wrong. I will test loading it with my comp at default, just to see if it will work thumb.gif
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