[SOLVED] Tightening RAM timings

[uplink-svk]

Lowering CAS latency or is it possible to run DDR4 4600 MHz RAM [2 x 8GB kit x 2] [F4-4600C18D-16GTRG] at 3600 MHz and CAS latency at 16 - 15clocks?

Hey there buddies,

I'm not very good with memory timings, in general, I only did some research regarding memory timings when I was on X570 and 5950X, where I could see big numbers when I lowered the timings.

I'm using XMP when on Intel platform, because it pretty much works like a charm most of the time, mainly when I use QVL memory, which is not my current case.

I'd like to ask how can I run my RAM [G.Skill TridentZ 4600 MHz running at some arbitrary stable values:

http://www.uplink.sk/th/memory-timings.jpg

I'm unable to make an image tag, sorry for that.

I'm running at pretty high values and I found out that my crappy 11900K likes the 3600 MHz and lower latency at all values the most.

My pium desiderium would be something like:

3600 MHz [1800 MHz cont. freq], CAS 15 clocks and the rest at the same decrement, so let's say 16-19-19-39 something nicer [56?] and that's that.

How should I come to the tighter possible timing with the crappy timing of my "golden" memory modules?

Their rated XMP profile is 4600 MHz and 18-22-22-42 I guess, and I'd like to get to something like 3600 MHz 15/16-19/18-19/18-19/18-32/30.

Is it possible?

Thank You!

With best regards

uplink

 

[Lutfij]

What voltage are you currently running on your ram kit? 1.45v while on X.M.P? You might want to understand that tightening timings is the same as overclocking your ram. Tightening them would most definitely need more power being pushed through them than 1.35v, probably close to 1.45v. As for the rams being possible to tighten or not, that's going to be possible via trial and error runs.

Start with making sure you're on the latest BIOS version for your motherboard, go manual(as opposed to X.M.P) set voltage to 1.4v frequency to 3600MHz, timings at 18 on all fronts, then tighten them gradually one parameter at a time. Run memtest then test for stability.

 

[uplink-svk]

What voltage are you currently running on your ram kit? 1.45v while on X.M.P? You might want to understand that tightening timings is the same as overclocking your ram. Tightening them would most definitely need more power being pushed through them than 1.35v, probably close to 1.45v. As for the rams being possible to tighten or not, that's going to be possible via trial and error runs.

Start with making sure you're on the latest BIOS version for your motherboard, go manual(as opposed to X.M.P) set voltage to 1.4v frequency to 3600MHz, timings at 18 on all fronts, then tighten them gradually one parameter at a time. Run memtest then test for stability.

Hey there @Lutfij , Thank You for Your fast reply!

Well, all I have set is this atm:

https://www.uplink.sk/th/memory-timing-00.jpg

https://www.uplink.sk/th/memory-timing-01.jpg

https://www.uplink.sk/th/memory-timing-02.jpg

I lowered the freq. speed due to crashes, this works for me now. Where should I begin? Btw. the RAM runs at 1.5v afaik.