*Official* Intel DDR4 24/7 Memory Stability Thread - Page 1239 - Overclock.net - An Overclocking Community
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post #12381 of 12483 (permalink) Old 05-23-2020, 11:27 AM
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Quote: Originally Posted by newls1 View Post
I found this chart in this link, but I dont understand how to know what my time is in ns to realize what/where my trfc should be set at with my given mem settings of ddr4000/ CL17... im currently @ trfc = 560. Auto puts me at 778. memory is so confusing. Here is the chart I found on the googles

According to BluEE from an older post on a different forum(i think that is his or her ID), assuming you are on samsung bdie, you can do 160ns-180ns for trfc. Sometimes even lower. It scales with voltage as do most bdie timings. If you are on anything else than samsung bdie, disregard my tip.

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post #12382 of 12483 (permalink) Old 05-23-2020, 11:51 AM
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its b die

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post #12383 of 12483 (permalink) Old 05-23-2020, 12:22 PM
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Quote: Originally Posted by XGS-Duplicity View Post
According to BluEE from an older post on a different forum(i think that is his or her ID), assuming you are on samsung bdie, you can do 160ns-180ns for trfc. Sometimes even lower. It scales with voltage as do most bdie timings. If you are on anything else than samsung bdie, disregard my tip.
so are you saying i should set my trfc to 400 then?

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post #12384 of 12483 (permalink) Old 05-23-2020, 01:08 PM
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Quote: Originally Posted by newls1 View Post
so are you saying i should set my trfc to 400 then?
I have same RAM Patriot 4400C19, but only 2 modules, Im maxed at 4000 stable with my imc/mobo with 1.4v dram, 1.27 vccio/vccsa. As per my prior post, I set all my secondary timings equivalent to 2133 boot level, and despite you using 4 sticks, your timings nearing same as mine...u just likely need higher io/sa with 4. once finished all settings with hci runs, I ran 8 hrs hci memtest 800+%. All but a few settings I have tried lower, only to get errors. (asrock tim config gui doesnt like 125% w/win dpi fix.)
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post #12385 of 12483 (permalink) Old 05-23-2020, 01:18 PM
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Quote: Originally Posted by opt33 View Post
I have same RAM Patriot 4400C19, but only 2 modules, Im maxed at 4000 stable with my imc/mobo with 1.4v dram, 1.27 vccio/vccsa. As per my prior post, I set all my secondary timings equivalent to 2133 boot level, and despite you using 4 sticks, your timings nearing same as mine...u just likely need higher io/sa with 4. once finished all settings with hci runs, I ran 8 hrs hci memtest 800+%. All but a few settings I have tried lower, only to get errors. (asrock tim config gui doesnt like 125% w/win dpi fix.)
appreciate the reply. My SA/IO are @ 1.32 for both, anything lower and its not stable. What is your mem latency in aida64?

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post #12386 of 12483 (permalink) Old 05-23-2020, 01:35 PM
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Quote: Originally Posted by newls1 View Post
appreciate the reply. My SA/IO are @ 1.32 for both, anything lower and its not stable. What is your mem latency in aida64?
here is my aida64, with your 4 dimms at 4000 1.32 is expected.
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post #12387 of 12483 (permalink) Old 05-23-2020, 02:22 PM
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awesome, thank you

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post #12388 of 12483 (permalink) Old 05-23-2020, 02:24 PM
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Quote: Originally Posted by opt33 View Post
here is my aida64, with your 4 dimms at 4000 1.32 is expected.
I just wonder if running 4 sticks will make trfc any different or no, and just copy your stuff....

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post #12389 of 12483 (permalink) Old 05-23-2020, 02:42 PM
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Quote: Originally Posted by newls1 View Post
I just wonder if running 4 sticks will make trfc any different or no, and just copy your stuff....
It may and some differences will exist with each stick of ram (just like each cpu)...you could just have 1 stick that requires higher values and cause issues.
Given other settings are near same, you could just try and copy secondary timings and see, worst case clear cmos and try again. Mine below 260 trfc wont boot with 1.4dram volts I use 24/7, so just left at 2133 level.
main thing is just run hci memtest for 1 long run once finished to be sure stable.

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post #12390 of 12483 (permalink) Old 05-23-2020, 04:59 PM
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Try bumping the dram voltage first until you see diminishing returns (or too much heat, over 40°c or so) rather than pushing io and sa to see if that helps as it is safer.
I would love to know how 2 dimms work as the QVL rates 2 dimms right up to 4800MHz

Have a look at the QVL as nothing 4 Dimms over 4000MHz is listed. I guess they had to do that to compete with the 2 Dimm board frequencies and for marketing. It would be nice if they mentioned it on the box so you knew not to get your hopes up too high for 4 Dimms.

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Last edited by munternet; 05-23-2020 at 05:33 PM.
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