Memory timing question.

[Nexblitzer]

Just a quick question. If you run memory at it's rated XMP, and you don't run the RAM speed higher then that, Can you tighten the timings a little bit without increasing VDDR? Or is that always a necessary evil?

[Hairless Monkey]

2 minutes ago, Nexblitzer said:

Just a quick question. If you run memory at it's rated XMP, and you don't run the RAM speed higher then that, Can you tighten the timings a little bit without increasing VDDR? Or is that always a necessary evil?

Usually you cannot tighten the primary timings, but sometimes you can. Usually you can tighten at least some of the secondary and tertiary timings.

[Mateyyy]

It depends entirely on the specific memory you're using.

If you're lucky you'll be able to increase the speed or tighten the timings without touching the voltage, but most likely you won't be able to. Well, not while keeping stability that is.

[xg32]

usually the multiplier for a set of ram is similar across the entire table

 

Let say you have cl14 3200 1.35v ram 3200/14=228, if u are running at 2400, 2400/228=10.5, so i expect 11 or 10  to be stable, in this case the voltage required for 2400 cl11 is definitely gonna be lower.

 

you can experiment with the rest of the timings, like 10-10-10-30, 10-10-10-26 etc, for secondary and tertiary timings i strongly recommend watching videos by GN or buildzoid on youtube.

 

I wouldn't worry about voltage too much unless it's a laptop, 1.2v is way too conservative for ddr4.

[Nexblitzer]

24 minutes ago, HairlessMonkeyBoy said:

Usually you cannot tighten the primary timings, but sometimes you can. Usually you can tighten at least some of the secondary and tertiary timings.

The kit that i'm planning ob getting can apparently have lowered timings that are very reasonable, considering it's not a Samsung-B die kit. It's Rev.E and is still pretty good from what i have heard.

[Nexblitzer]

14 minutes ago, xg32 said:

usually the multiplier for a set of ram is similar across the entire table

 

Let say you have cl14 3200 1.35v ram 3200/14=228, if u are running at 2400, 2400/228=10.5, so i expect 11 or 10  to be stable, in this case the voltage required for 2400 cl11 is definitely gonna be lower.

 

you can experiment with the rest of the timings, like 10-10-10-30, 10-10-10-26 etc, for secondary and tertiary timings i strongly recommend watching videos by GN or buildzoid on youtube.

 

I wouldn't worry about voltage too much unless it's a laptop, 1.2v is way too conservative for ddr4.

I do indeed watch build and steve a lot, sometimes they just don't clarify it enough for my likings.