Question Ryzen 2700x memory overclock.

Feb 27, 2019
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How can I tell if my memory successfully OC'd to 3200? CPUID memory showing NB Frequency 1599.6 and DRAM showing same. In bios it recognized it as 3200 and I have it set to auto since it seemed to get picked up. But where do I check if it's really overclocking?

Any tips on how to squeeze the most out of this particular ddr4 will be greatly appreciated.
  • Brand G.SKILL, Series Ripjaws V Series, Model F4-3200C16D-16GVKB
  • Capacity 16GB (2 x 8GB), Type 288-Pin DDR4 SDRAM, Speed DDR4 3200 (PC4 25600), Cas Latency 16, Timing 16-18-18-38, Voltage 1.35V, ECC No, Buffered/Registered Unbuffered, Multi-channel Kit Dual Channel Kit, Chipset Intel Z170 Platform / Intel X99 Platform, Color Black, Heat Spreader Yes, Recommend Use High Performance or Gaming Memory
 

Aeacus

Glorious
Ambassador
CPUID shows the RAM speed in single data rate, hence the 1599.6 Mhz. But since your RAM is DDR (double data rate), multiply that speed by 2 to get the real RAM speed, which would be 3199.2 Mhz. Or 3200 Mhz rounded up.
 
Reactions: MarkAMD
Feb 27, 2019
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CPUID shows the RAM speed in single data rate, hence the 1599.6 Mhz. But since your RAM is DDR (double data rate), multiply that speed by 2 to get the real RAM speed, which would be 3199.2 Mhz. Or 3200 Mhz rounded up.
Great so I should be okay on memory!

Do you think I can lower the timings a bit? I've heard that cash latency is more important for ryzen. The preset is 16-18-18-18-38.

Maybe I can go lower, and any tips on how that process goes would be great. Link to article kr if you know the ram I listed a suggestion would be awesome.
 

Aeacus

Glorious
Ambassador
I wouldn't start messing around with RAM timings since lowering them takes lots of time and patience and may not result in any improvement whatsoever.

But if you want to tighten your RAM timings then this short video here gives you idea about RAM timings and few steps towards tightening them as well,
View: https://www.youtube.com/watch?v=Yed-a9vqTYc


Make sure that you test each timing change with memtest86 to validate RAM stability. Due to the constant timing change, RAM testing, timing change, RAM testing etc; the RAM timings tightening is one tedious thing to do. Similar to CPU/GPU OC if you want to get the most out of them.

Also, while your RAM currently runs @ 3200 Mhz with timings of 16-18-18-38 @ 1.35V you might get timings to 15-17-17-36 @ 1.35V or similar but those timings may not be stable at 3200 Mhz and you might need to lower the speed to 3000 Mhz to get it stable.

For example:
In my Skylake build (full specs with pics in my sig), i have Kingston Savage 4x 4GB RAM. My RAM currently runs @ 3000 Mhz with timings of 15-17-17-39 @ 1.35V. I can tighten the timings to 14-15-15-33 @ 1.35V but i need to lower the RAM speed to 2666 Mhz for it to be stable at those timings.

Easiest way to get low CAS Latency would be buying RAM which is made to work at tighter timings, e.g G.Skill Trident Z RGB 2x 8GB which runs @ 3200 Mhz with timings of 14-14-14-34 @ 1.35V,
pcpp: https://pcpartpicker.com/product/gT38TW/gskill-tridentz-rgb-16gb-2-x-8gb-ddr4-3200-memory-f4-3200c14d-16gtzr
 
Reactions: MarkAMD
Feb 27, 2019
30
0
30
0
I wouldn't start messing around with RAM timings since lowering them takes lots of time and patience and may not result in any improvement whatsoever.

But if you want to tighten your RAM timings then this short video here gives you idea about RAM timings and few steps towards tightening them as well,
View: https://www.youtube.com/watch?v=Yed-a9vqTYc


Make sure that you test each timing change with memtest86 to validate RAM stability. Due to the constant timing change, RAM testing, timing change, RAM testing etc; the RAM timings tightening is one tedious thing to do. Similar to CPU/GPU OC if you want to get the most out of them.

Also, while your RAM currently runs @ 3200 Mhz with timings of 16-18-18-38 @ 1.35V you might get timings to 15-17-17-36 @ 1.35V or similar but those timings may not be stable at 3200 Mhz and you might need to lower the speed to 3000 Mhz to get it stable.

For example:
In my Skylake build (full specs with pics in my sig), i have Kingston Savage 4x 4GB RAM. My RAM currently runs @ 3000 Mhz with timings of 15-17-17-39 @ 1.35V. I can tighten the timings to 14-15-15-33 @ 1.35V but i need to lower the RAM speed to 2666 Mhz for it to be stable at those timings.

Easiest way to get low CAS Latency would be buying RAM which is made to work at tighter timings, e.g G.Skill Trident Z RGB 2x 8GB which runs @ 3200 Mhz with timings of 14-14-14-34 @ 1.35V,
pcpp: https://pcpartpicker.com/product/gT38TW/gskill-tridentz-rgb-16gb-2-x-8gb-ddr4-3200-memory-f4-3200c14d-16gtzr
Yeah, I was trying to save a little cash at the end of the build on memory. I'm going to need to get that but I wanted to wait till ram comes down more. I heard 20% drop Q2 and likely more q3 . And I would love that ram to drop to 160 and buy 4x8gb for 300'ish instead of 400.
 

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