X370 Prime Pro - Ryzen 3600 - 32GB (4x8) Ram Stability experiments

[Nomad8459]

As the title suggests i picked up some good deals on earlier hardware so i got this X370 Prime Pro board from ASUS for a very reasonable price, i have found it to be rock solid and very reliable - setting RAM timings wrongly can cause a no boot which requires a CMOS reset rather than the old M5A99 days where it would kinda boot into a BIOS safe mode if you held down the power button - it does boot into safe mode at times bit I've found this a little unpredictable as to when it does that.

Anyway i had the Ryzen 3600 happily running a manual overclock of 4.4Ghz (1.37V set droop to 1.34V) with a 2x8GB Crucial kit with the FCLK at 3733Mhz and RAM frequency to match at 3733Mhz also the timings were advertised as 16-18-18-38-58 but i had got them down to 16-18-16-34-54 with tighter sub timings too

Introducing a second kit 0f this RAM stopped my manual overclock working and it seems it was the Memory controller at fault, i tried adding voltage to SOC but it didn't really like it at all - in the end what i had to do was drop the FCLK and MCLK one step down to 1833Mhz each - still technically over the Ryzen sweet spot guarantee of 3600 on the Mem controller - with 1.41V on the RAM im still able to set 16-18-16-36-58 with some tighter sub timings and to be honest the Memory bandwidth and throughput read, write, copy speeds have not changed at all really.

I have turned on the PBO and AMD Overclock at 200MHz and its regularly boosting up to 4.3Ghz which is somewhat less than my 4.4Ghz all core overclock.

Overall if you need 32GB then it can stabilise relatively easier but for gaming there is no improvement to anything other than Capacity. 2x8GB or 2x16GB would definitely be my recommended if you are just gaming and don't need that 32GB of RAM.

 

[DeathtoGnomes]

a very reasonable price

reasonable for who? not for me, but than again I have no idea what you payed for it. IDK if $155 is good for a used board. Also, you dont list the exact parts list of the test system. Detailed build information is as important as what you are trying to with it.

 

[Nomad8459]

I paid about $65 for it and it was in A1 condition.. I explain what I am doing with the system.. not looking for answers just detailing what I did with the Ryzen 3600 and the X370 Prime Pro and 32GB of Crucial.. however if you have any knowledge regarding stabilising the 3733Mhz FCLK I'd be interested but I just dont think my chip will do it with 4x8gb RAM ..

 

[Caring1]

Single Rank set to 2T it might.
I'll also point out this little oddity you posted:

2x8GB or 2x16GB would definitely be my recommended if you are just gaming and don't need that 32GB of RAM.

 

[DeathtoGnomes]

I paid about $65 for it and it was in A1 condition.. I explain what I am doing with the system.. not looking for answers just detailing what I did with the Ryzen 3600 and the X370 Prime Pro and 32GB of Crucial.. however if you have any knowledge regarding stabilising the 3733Mhz FCLK I'd be interested but I just dont think my chip will do it with 4x8gb RAM ..

$65 is a pretty good price. As for the rest I find it a bit confusing what you are doing. I do recall there were random issues with using 4 sticks ( of anything ) and ryzen, there was post replies about it not sure about whole threads. Maybe someone keen on memory settings will find this thread. good Luck.

 

[Nomad8459]

Single Rank set to 2T it might.
I'll also point out this little oddity you posted:

Yeah i was aware i left that in there - because 2x16 or 2x8 would be what i recommend - i figured people could understand the notion as you obviously have and pointed out, I think most people understand that 2x16 is 32gb - my basis for writing that was meaning to stick with 2 sticks

 

[freeagent]

4 sticks offer higher performance than 2 sticks. Your testing was flawed in that you are comparing different speeds, as well as timings. I see your trfc is up in the 500s with 4 sticks, which is quite high, it wouldn’t be that high with 2 sticks. There are also videos on YouTube where you can see what the rest of us see..

 

[DeathtoGnomes]

I think most people understand that 2x16 is 32gb

math, its not just for kids.

 

[Nomad8459]

4 sticks offer higher performance than 2 sticks. Your testing was flawed in that you are comparing different speeds, as well as timings. I see your trfc is up in the 500s with 4 sticks, which is quite high, it wouldn’t be that high with 2 sticks. There are also videos on YouTube where you can see what the rest of us see..

Well i used figures as advised by 1Usmus TBH, i think the 500 (or higher) relates more to the crucial sticks i am using - i havent found better performance on 4 sticks with the 3600, i believe gamers nexus found that was with the Ryzen 3rd gen CPUs or 5XXX series if you prefer - its impossible to compare the same timings because 4 sticks require different timings to stabilise. its ok to have theoretical comparison but with 4 sticks my Mem controller would not maintain 3733Mhz or at least not without messing, 2T was suggested but that would bring performance back a little anyway, if the increase in frequency would compensate is debatable, watching a lot of Buildzoid the gains he experienced with frequency weren't massive either for example, he could get higher frequencies but at the cost of latencies - 4x8GB is perfectly stable but it took some tweaks to 1Usmus to achieve and a drop of the FCLK to 3666Mhz to get there. With these timings and settings the Aida 64 scores are negligibly different on Mem benchmark but it has come at the cost of not being able to set 4.4Ghz all core overclock any more

 

[Nomad8459]

Just an update - got 3733Mhz stable by dropping timings to 16-19-16-38-58 at 1T @1.425V on the RAM and 1.125V on the SOC - seems the 1 tick drop on the (18) 19 and (36) 38 timings was enough to stabilise - Intel Burn Test stable on high setting - still cant get my all core overclock but its boosting to 4.3Ghz with PBO which is still higher than expected - all core in IBT is 4.1Ghz, would like higher but all my messing with PBO isn't really changing anything - tried the EDC bug (setting PBO to 0,0,1) but single core performance went to heck so didn't like that. With the 16GB (2x8) i could achieve 4.4ghz all core at 1.3625V but hey ho, its still quick enough for all my games I play and the 32GB is good for video edits.

 

[Nomad8459]

Well i decided to install Ryzen Master to play with the overclock in Windows instead, and i can say that my 4.45Ghz Max OC with 4.4Ghz every day is back even with the 32GB 4.45ghz at 1.425V set 1.384V get - this was one of the later batches of the 3600 being new about a year ago and it does OK overall

 

[Fractured]

Have you a zen timings screenshot? Very useful app.

If you plugged the 2 extra sticks in with the existing OC settings, could be the drive strengths/PROCODT/RTT values are off. Loading XMP from cleared bios with the 4 sticks and letting it train, then booting into windows and checking the values is useful, plugging any differences into your current OC might get you back to higher IF.

 

[Nomad8459]

Cheers, i just got a 2700X as well and put this 3600 on a B550 board with 2x8Gb and used the other 2x8Gb in the 2700X build, i got 1900Mhz stable and 3800Mhz memory on the B550 Asus board, i always do 400% memtest before posting my timings etc, ive found the 2700X more awkward to lock in but got that running at 3466Mhz which im fairly happy with 15-17-17-16-35 timings.

Here is my Zen timings for the 2x8Gb setup - i mainly game on the 3600 so using the other 16gb in the 2700x made sense, i might try 32gb in the 2700x build at some point but im guessing that may be fun !

 

[Fractured]

I'm just back on 4 sticks after using two of mine in a low budget build for the kid. Got them some used BDie so finally back to working on 4 sticks after some months.

A lot of our timings are the same, your tWTRL 6 versus my 8 and TRFC 545 versus 560 for me (I'd booted 540 but i think i changed it back with some other settings after some errors, maybe I blamed TRFC in error lmao).

From my 2 stick setup, IF 1900 and 3800, GDM, PDM, 1T, BGS all the same. ASUS B550-F so very similar setups for memory, other than I have ProcODT 36.9 and minor differences in IO voltages. Lower VSOC & IOD, higher CLDO for me. Do you have a DRAM latency enhance option under DRAM timings? Seems to change tPHYRDL and lowers a tick or two of aida latency.

tRCDWR will run 8 but not sure if it leads to benefits, I always assumed its bios linked to tRCDRD somehow as it never showed more than margin of error differences.
tRP 14, tRAS 34, TRC 54
tRTP and tRDWR did 8.
tRDRD/tWRWR's 1-4-4 1-6-6
tCKE1 but no idea if that has any benefit.

For Benching I had a setup running 14 tCL, tCWL; 12 tRP, tWR but thats with a fan on the two sticks @1.5v so never had the stones to let it run stability tests overnight! Some DIMMS are 1.55 at stock so its bound to be okay though, right? lol

First few issues I had going back to 4 sticks was typing in PROCODT and RTT values from memory for the two stick setups. They end up hugely different on 4 sticks and that's what finally got me moving towards setups I knew were possible with 4 sticks again. Still working timings down again so reading everything ZEN2 ands recent I can find trying to figure out whats specific to 4 stick or DR setups. Would like C14 but seems difficult stability wise ( - am I willing to nod off whilst it tests at borderline uncomfortable voltages).

Forgot to add...will the TUF let you input odd tcl and tcwl if GDM is disabled? Mine just says no. Bloody annoying, I'd settle for 15 tcl ha

 

[Nomad8459]

I'm just back on 4 sticks after using two of mine in a low budget build for the kid. Got them some used BDie so finally back to working on 4 sticks after some months.

A lot of our timings are the same, your tWTRL 6 versus my 8 and TRFC 545 versus 560 for me (I'd booted 540 but i think i changed it back with some other settings after some errors, maybe I blamed TRFC in error lmao).

From my 2 stick setup, IF 1900 and 3800, GDM, PDM, 1T, BGS all the same. ASUS B550-F so very similar setups for memory, other than I have ProcODT 36.9 and minor differences in IO voltages. Lower VSOC & IOD, higher CLDO for me. Do you have a DRAM latency enhance option under DRAM timings? Seems to change tPHYRDL and lowers a tick or two of aida latency.

tRCDWR will run 8 but not sure if it leads to benefits, I always assumed its bios linked to tRCDRD somehow as it never showed more than margin of error differences.
tRP 14, tRAS 34, TRC 54
tRTP and tRDWR did 8.
tRDRD/tWRWR's 1-4-4 1-6-6
tCKE1 but no idea if that has any benefit.

For Benching I had a setup running 14 tCL, tCWL; 12 tRP, tWR but thats with a fan on the two sticks @1.5v so never had the stones to let it run stability tests overnight! Some DIMMS are 1.55 at stock so its bound to be okay though, right? lol

First few issues I had going back to 4 sticks was typing in PROCODT and RTT values from memory for the two stick setups. They end up hugely different on 4 sticks and that's what finally got me moving towards setups I knew were possible with 4 sticks again. Still working timings down again so reading everything ZEN2 ands recent I can find trying to figure out whats specific to 4 stick or DR setups. Would like C14 but seems difficult stability wise ( - am I willing to nod off whilst it tests at borderline uncomfortable voltages).

Forgot to add...will the TUF let you input odd tcl and tcwl if GDM is disabled? Mine just says no. Bloody annoying, I'd settle for 15 tcl ha

Hi, am onto a 5600x now with 2x8gb as i still have 2x8gb in my second rig which now has the 3600 in it, with the 3600, this TUF B550 would do 1900/3800 easy enough but the 5600x wont boot at that, i did read about some memory hole at 1900 on 3rd gen ryzen but finding stability over 1900 would probably be tough to dial in, tried a few times but no joy as yet, not tried too hard, many people reporting IF at 2000 on 5600x cpus.
Having to run even 2x8gb on the 5600x at 3733/1866 - getting great numbers in cinebench R20 like even so but you know would like 2000 stable as ever, putting a switch on the clear cmos header helps due to the no safe boot thing or at least intermittent safe boot. strange thing is 1900 on 5600x it boots into safe boot every time, lols all the way

No DRAM latency option on the TUF, GDM disabled allows odd numbers though no issues.

Am Actually looking out for B550-F board but not sure it will improve too much, looking for a good Cheap X570 has still proved difficult as people not upgrading to 7000 as boards so expensive plus the X570s were quite expensive anyways.

Found some 2000 settings on E die with TRFC lower, like 560, PROCODT lower, more voltage 1.45v but they said GDM HAD to be enabled to get the 2000, he was saying lower CLDO VDDP helped him, he used 900mv as opposed to 950mv, it works really well and stable at 3733 but i like to tinker to my own peril sadly.

2000mhz with 4000mhz RAM on 5600x OK with 1.44V, TRFC dropped to 570, GDM enabled, 36.9 procodt and with 18-20-18-38-60 timings - latency similar, slight bump in bandwidth but nothing massive 1.04 IOD, 950 CCD, 950 VDDP, 1.11 SOC

 

[Nomad8459]

Getting WHEA errors when trying to push IF above 2000Mhz but it seems 1966 and 3933 work pretty well without errors, getting same bandwidth scores as at 2000mhz anyway - this is a 5600x - it boosts with PBO up to 4.85ghz and will do all core 4.85ghz @ 1.34v set 1.33v get