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*Official* Intel DDR4 24/7 Memory Stability Thread - Page 30

post #291 of 4877
If you want a lower tRAS just lower your CL tRCD tRP a bit. Keep in mind if you have values set to auto they will auto tune based on what timing and speed your memory is at. At least in most cases thats how i have seen it work you must enter in value in order to keep that value.
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post #292 of 4877
Quote:
Originally Posted by Unclefred View Post

thanks for the reply @Formula383. What you said is about what I understand though not as well as I couldn't even put it into words like you did yet. The prioritization I've never seen laid out like that, interesting. I also gather tRAS and tRFC need to be "balanced out," just looking for a solid understanding so I'm not just taking stabs each boot attempt.

I added "DDR4 Architecture" to my google-fu and there's more info than I can even digest now. I also read that tREFI works differently for DDr4 compared to DDR3. I almost want to just wait and let some of our established forum gurus put it into words for peons like me - DDR4 is new and "intermediate" articles are few.

Frankly I'm most hungry for a mental grip on how memory training works and what it does, what secondary/tertiary timings it affects, what the mobo is doing during the process, etc. Not looking for answers here really, just a nudge in the right direction with the right search terms or a link so I can educate myself... I know I'm needy

OH I ALMOST FORGOT I need to be able to view secondary/tertiary timings with a z170 gigabyte mobo in Windows, damn BIOS only displays XMP/SPD defaults and I want to see what numbers churn out from a memory re-train. Found "RAMMon" but it only displays serial/SPD info, detailed as it is. Making me wish I had an ASUS board with their support software.

Download the AsRock Timing Configurator. You can observe all timings in the OS with this. thumb.gif
Quote:
Originally Posted by Formula383 View Post

If you want a lower tRAS just lower your CL tRCD tRP a bit. Keep in mind if you have values set to auto they will auto tune based on what timing and speed your memory is at. At least in most cases thats how i have seen it work you must enter in value in order to keep that value.

Just for accuracy. tRAS should be ~ CAS+tRCD+tRTP (+/- 2 in most configurations). Not tRP AFAIK.

Also - be aware that ram timing guidance on the BOT is not necessarily directed at STABLE ram timings... benchmarking fast, yes. Stable, questionable.
Edited by Jpmboy - 1/17/16 at 12:17pm
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post #293 of 4877
Quote:
Originally Posted by Formula383 View Post

If you want a lower tRAS just lower your CL tRCD tRP a bit. Keep in mind if you have values set to auto they will auto tune based on what timing and speed your memory is at. At least in most cases thats how i have seen it work you must enter in value in order to keep that value.

Hello

As @Jpmboy noted the minimum value for tRAS is based on the sum of CAS, tRCD and tRTP. Also as tRCD and tRP are required to be set to the same number of clocks and are tied together only one of the two settings will be available in the UEFI as a user adjustable setting.
post #294 of 4877
Lol- Alex@ro posted a thesis-level amount of work... but sometimes these guys go to extremes when not really needed:



Not that I'm a ram bencher like rt123 or aerotracks, or an EE like praz and raja... but an average user can get pretty far without setting up conditions that are capable of causing windows to forget its name (no really, I did just that messing with rtls, io and 4th timings redface.gif)
Be sure to have a good image of the entire system before proceeding... or use a straight benchmarking Win install.
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post #295 of 4877
Ahhh the itch! Waiting on hardware shipment sucks!!
post #296 of 4877
Naw man thats the best part you get to tell all your buds you got HAREWARE IN THE MAIL YO! smile.gif or at least thats what me and all my friends did every time we got something new smile.gif waiting just makes it that much better when it arrives.
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post #297 of 4877
Thread Starter 
Quote:
Originally Posted by Formula383 View Post

Naw man thats the best part you get to tell all your buds you got HAREWARE IN THE MAIL YO! smile.gif or at least thats what me and all my friends did every time we got something new smile.gif waiting just makes it that much better when it arrives.


Then onto the next purchase typer.gif
post #298 of 4877
So i downloaded the asrock memory tweaker and when i launch it. It says can not run on this system (x79). Ok well that blows is there a x79 version nope not that i could find at least. oook well what about Memtweakit surely that will work... lauch program nothing just a taskbar icon that does nothing and is blank lol -.- little help here? anyone know if they make one for x79?
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post #299 of 4877
Thread Starter 
Quote:
Originally Posted by Formula383 View Post

So i downloaded the asrock memory tweaker and when i launch it. It says can not run on this system (x79). Ok well that blows is there a x79 version nope not that i could find at least. oook well what about Memtweakit surely that will work... lauch program nothing just a taskbar icon that does nothing and is blank lol -.- little help here? anyone know if they make one for x79?


Have you checked the download page for your motherboard on Asrock's website?
post #300 of 4877
Quote:
Originally Posted by Silent Scone View Post

Then onto the next purchase typer.gif

ya.... I am having a very hard time not picking up a haswell-e but i told my self i was going to wait unit 14nm -.- and when i think about 22nm that usaly helps deture me from doing some thing rash tongue.gif But my 3 titanx with water blocks are feeling the pain of this 4960x with a measly 4.7ghz clock frown.gif I took the 4960x out of my laptop (sager) because i figured it is newer than my 3930k and it has more l3 so even if i lose a few clocks its prolly ok now the 3930k ran 5.0 all day like a champ everyday it just ate a $hit ton of power lol, so i figured hey i dont ever use my laptop maybe once a year might as well save some on the ol electric bill and maybe even get some better performance out of the deal... IDK feels about the same maybe a bit slower maybe. Thing is i have been waiting for a cpu upgrade for AGESSSSS ugh... I did break down and pick up a g4400 and thats fun to play with for now i just dont know how long i can wait :/ broadwell-e coming soonish maybe?
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