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Can people post what their CPU 1P8 otherwise known as CPU PLL auto voltage is ?

Mine defaults to 1.8v, ive found reducing this to 1.75v improves stability at 3800/1900 mhz.

Keep returning on getting 3800/1900 mhz stable and 1.75v so far is showing alot of promise.

My sure fire way to check stability without having to run hours of benchmarks is to fire up winamp, load a AAC+ stream, than start TM5.

If the sound starts getting crackly than infinity fabric is not going to be 100% stable.

Keep finding myself returning to this as the throughput numbers at 3800/1900 15-15-15-28-44-288 look so much nicer than at 3733/1866 14-15-14-26-42-266

:p :p

But when I can use BCLK 100.625 at 3733/1866 (3760/1880) than the CPU performance improvement outweighs the gains from being at 3800/1900 with 100 BCLK.

So hoping to be able to get IF over 1900 with stability to have the best of both worlds

:)

** EDIT **
scrub that off, ran a TM5 26 pass, no issue.

Rebooted then tried to run TM5 again, PC randomly reboots

Back to BCLK 100.625 at 3733/1866 (3760/1880) 14-15-14-26-42-266 ......... ......... .........
 

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So, from what I've read so far, one's best bet would be getting a 4000/4400 CL19 B-die kit and trying to scale it down to 3800 CL14/15/16 + 1900 FCLK, right? And if 1900 fails, go down to 3733/3600.
 

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or just buy 3200 cl14 or 3600 cl16 and tune that up
 

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Just wanted to share this ZIP, order files by time, ~49hrs back to back mixed testing of [email protected]

I have owned Zen/Zen+/Zen2, on AM4 & sTR4, used several kits of G.Skill, all Samsung B die, bins 3200C14, 3600C15, 4000C18. None of those have given me the OC buzz that the Crucial Ballistix Sport LT 2x16GB kit (BLS2K16G4D32AESB) have. Main reason being is for ~£100 I got 32GB of DDR4 with nice OC headroom and not lacking in performance vs Samsung B die.

Phenomenal value for sure.
 

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Samsung B-Die are harder to get the IF to 1900. More stress on it or something like that
 

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Samsung B-Die are harder to get the IF to 1900. More stress on it or something like that
I think it's "snake oil", after having had both and used with same FW/HW, etc.

Currently the R5 3600 & R9 3900X I have, regardless of RAM IC in use, both top out same FCLK/UCLK/MEMCLK. Even if I say set 1900MHz and bump BCLK per 0.2MHz step the C7H allows.
 

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Easier.... hard to say. The higher stuff will be better clockers, but is it worth the extra cost for you?
With more time and mybe a bit more vdimm you can reach the same clocks/timings

And with my 3900x i CANT get 3800/1900 stable with 4x8gig b-die 3600cl16 stable. from time to time it boots up, but crashes or frezze. MAYBE with 1.2v SOC and vddg at 1.15v, but dont wanna go so high for a bit more performence. dont wanna **** it
 

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Hello everyone I am trying to lower the latency as much as possible right now.

These are the timings I am on right now, and its really overwhelming to get every small detail perfectly for the mobo to even boot, So for the experts out there i am now sitting on (66.4) and want to get as close to 60 as possible what do you think I should start tightening first.

Thanks
 

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Hi all. I just got a 3900X so please excuse my ignorance as I didn't keep up with this thread after it was created.

I'm running 3800MHz/1900MHz and the only voltage I set was DRAM and SOC. Leaving the rest on Auto I assumed would produce predictable results as I understood VDDG to be a derived from SOC. However Ryzen Master shows much higher voltage than I expected. Is an explanation available? Is concern warranted? Instruction welcomed.
 

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Hi all. I just got a 3900X so please excuse my ignorance as I didn't keep up with this thread after it was created.

I'm running 3800MHz/1900MHz and the only voltage I set was DRAM and SOC. Leaving the rest on Auto I assumed would produce predictable results as I understood VDDG to be a derived from SOC. However Ryzen Master shows much higher voltage than I expected. Is an explanation available? Is concern warranted? Instruction welcomed.
Could you tell me where to download the "Zen2 Timing Checker"?
 

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Can't seem to find much info on dual rank 16GB per module kits. I am currently interested in the G.Skill F4-3600C16D-32GTZN (32GB kit, 16-16-16-36) https://www.gskill.com/specification/165/326/1562839473/F4-3600C16D-32GTZN-Specification. There does not seem to be much info available but some user reviews have speculated that it may be B-die.

What I am most interested in before making a purchase, getting some ballpark understanding if it is used with the R9 3900x and infinity fabric set to 1800MHz, and DRAM kept at the 3600 speeds, but attempting to tighten timings (increasing voltages as needed and where safe to do so).
 

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Can't seem to find much info on dual rank 16GB per module kits. I am currently interested in the G.Skill F4-3600C16D-32GTZN (32GB kit, 16-16-16-36) https://www.gskill.com/specification/165/326/1562839473/F4-3600C16D-32GTZN-Specification. There does not seem to be much info available but some user reviews have speculated that it may be B-die.

What I am most interested in before making a purchase, getting some ballpark understanding if it is used with the R9 3900x and infinity fabric set to 1800MHz, and DRAM kept at the 3600 speeds, but attempting to tighten timings (increasing voltages as needed and where safe to do so).
1.5v

@KedarWolf
 

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The selectzed kit has to be b-die because of the timings. You can be quite sure about this. The rest of the question I do not understand. After you bought the kit, you should extract the profile with taiphoon burner and import it in the ryzen timing checker to to see how far you can go at any given speed.
There are probably profiles of this kit online that you can search for to get an impression of the capabilities and play with them in dram calc.
 

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Your performance numbers are awesome. I would not be comfortable with the voltage, even though it is said that 1.5 should be safe.
What stability test did you run? I can not imagine 100% stability under these settings.....
 

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Your performance numbers are awesome. I would not be comfortable with the voltage, even though it is said that 1.5 should be safe.
What stability test did you run? I can not imagine 100% stability under these settings.....
1.5v is safe. And you can apply more v. Depends how you cool them.
Those results are @KedarWolf's.

I have the same kit, but with a 3600 and my IMC can't run more than 3733.
 

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Got some bad luck, purchased the kit from newegg, arrived in one day, but 1 of the sticks was bad, and would fail to post at anything near XMP. though the other stick was fine.
Didn't have access to much hardware to test it on, but 1 stick was confirmed bad on a Asus ROG Strix X570-E (has the memory in the QVL), as well as an old Gigabyte Z170 Gaming 6 (too old to have such a kit in the QVL).

I will be sending it back to newegg, and I will try to get a replacement as it is b-die, and would love to get a stable pair that I can then hopefully have some luck on tightening timings on.

While the box that it came in had a few dents, the memory sticks did not have any visible damage. Newegg mails the RAM out in a padded envelope instead of a larger box.
 
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