XMR RandomX mining with Ryzen 3900x

[hustleman]

Need some help if anyone can offer it.  I have pulled countless youtube videos, reddit forums research and still cant get the CPU overclocking down for this.  I have the following hardware:

MSI x470 Gaming plus max MOBO
Ryzen 3900x cpu Wrath Prism cooler
2 8gb Consair Vengance 3600mhz DDR4 CL18 RAM
msi 570 4gb Gpu
running windows
XMRig  6.7.0 mining software
Huge pages enabled.

I have input RAM info into DRAM calculator to get the timing for the Ram.  When I enter those timing and subtiming into the MOBO bios, on reboot it fails and I have to reset to default.  I've also just done simple OC like increase CPU speed from 3.8mhz to 4.1mhz.  changed cpu voltage to 1.25 and Ram voltage to 1.25.   None of this seems to increase the hashrate of the 3900x.  It starts out at 8700khs and only increases to 9136khs.  That is the highest I can get.  

Note:  When I use XMRig benchmark test the cpu get 12517khs.  I dont understand why when I run the miner it only obtains 9100-9200khs.  It never mines above 9200khs and the CPU temp never gets above 52C degrees.  

By chance is the sticks of RAM to high for this cpu... Should i have gone with 3400 0r 3200 mhz ram?


Any information would be greatly appreciated.

[1714810356]

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[1714810356]

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[twan69666]

I'd imagine its because when you run the short benchmark, the cpu boosts instantly due to the load and voltage, and it gives a good score. However, the all core boost is not sustainable without crazy cooling and voltage, as you're finding out when you actually run the miner.

What type of cooler do you have? What's your infinity fabric clock set to? These are all factors

Edit: Also, are you running it as admin?

[waywoos]

do you have huge pages enabled?

[philipma1957]

Okay you need to clock the cpu miner use ryzen master software.

set freq to 3300

and set volts to 1.1

it gives a constant temp reading for the cpu

Mine stay at 60c and do 10500-11000 for days on end.

if you drift up near 85c they will throttle.

what is your cooler.

other option is a killer diller cooler and they are far and few in-between as many water coolers cover only 90% of the chip I use this huge air cooler


https://www.amazon.com/quiet-Dark-Rock-BK022-Cooler/dp/B07BY6F8D9/ref=sr_1_1?

as it covers the chip

[hustleman]

Okay you need to clock the cpu miner use ryzen master software.

set freq to 3300

and set volts to 1.1

it gives a constant temp reading for the cpu

Mine stay at 60c and do 10500-11000 for days on end.

if you drift up near 85c they will throttle.

what is your cooler.

other option is a killer diller cooler and they are far and few in-between as many water coolers cover only 90% of the chip I use this huge air cooler


https://www.amazon.com/quiet-Dark-Rock-BK022-Cooler/dp/B07BY6F8D9/ref=sr_1_1?

as it covers the chip

Will give this a shot.  I have been trying to set the freq and volts and dram timing in the mobo bios, but apparetly that doesnt help me any.  I will attempt to OC in Ryzen master when I have a chance again.  I have the stock Wrath Prism cooler, but since it only hashes at 9200khs the cpu doesnt get above 51C degrees.  I never gets above 51C degrees for it to have to throttle. 

[hustleman]

Well so much for ryzen master.  Every time I open it, I get passed warning accept option and when it opens i freezes and say Ryzen master has stopped working... a problem has occurred and program needs to be closed.  Any other option for OC this CPU.?

[hagbase]

Bios Version?
You could try ClockTuner V2.0
https://www.guru3d.com/news-story/clocktuner-v2-rc4-for-ryzen-(ctr)-info-and-download.html

[hustleman]

Bios Version?
You could try ClockTuner V2.0
https://www.guru3d.com/news-story/clocktuner-v2-rc4-for-ryzen-(ctr)-info-and-download.html

Bios Version
7B79vHB1(Beta version)
Release Date
2020-12-20

[hagbase]

Ok latest Bios.
Read also how to use ClockTuner.

And for DRAM Calc look up either the nicehash guide and read other guides like this one: https://www.techpowerup.com/review/amd-ryzen-memory-tweaking-overclocking-guide/
Its more than just pressing a button and entering timings.

[hustleman]

I am at wits end with this cpu miner.  latest bios for MSI x470 gaming plus max.  i've attempted bios oc via DRAM calculator.  no success. It just crashes when appling adjusted dram timing and I have to reset to basic.  Ryzen Master closes with error anytime I attempt to open and make oc adjustments.  I attempted Clocktuner 2.0.  Immediately I receive messages of "operating system does not see CPPC core tags, CPPC, CBP and Cool and quiet and perferred cores should be enabled.  I've gone into bios and enabled CPPC, can't locate CBP or Cool and quiet mode.  Even subtle OC of CPU and Voltage only lets me achieve 9100Khs on xmrig.   I'm not sure if Windows if not verifiing CPPC or what.  Just know I am at a loss.  Any suggestions would be very appreciated.  New Windows 10 version, latested mobo bios.  This thing should be atleast doing 11000 khs without any OC.  Super puzzled.

[philipma1957]

your ram does have very high cl 18

I have 14,15,16 on my miners.

I use 3000 or 3200

if you crash 💥 when you open ryzen

something is set wrong in the bios.

[hustleman]

your ram does have very high cl 18

I have 14,15,16 on my miners.

I use 3000 or 3200

if you crash 💥 when you open ryzen

something is set wrong in the bios.

Do you think a Ram change to CL16 or CL14 is needed? 

[philipma1957]

your ram does have very high cl 18

I have 14,15,16 on my miners.

I use 3000 or 3200

if you crash 💥 when you open ryzen

something is set wrong in the bios.

Do you think a Ram change to CL16 or CL14 is needed? 

I don’t know msi mobos.

had bad luck them and don’t use them any more.

so i don’t know how to set the bios.

if you botch bios settings you run low.

you have something wrong besides the ram cause you cant get ryzen to run.

[JayDDee]

your ram does have very high cl 18

I have 14,15,16 on my miners.

I use 3000 or 3200

if you crash 💥 when you open ryzen

something is set wrong in the bios.

Do you think a Ram change to CL16 or CL14 is needed? 

I don’t know msi mobos.

had bad luck them and don’t use them any more.

so i don’t know how to set the bios.

if you botch bios settings you run low.

you have something wrong besides the ram cause you cant get ryzen to run.

I don't know MSI either but RandomX isn't dependant on DRAM speed so it's a waste of time to tweak it.
CPU OC will help but Ryzens are notorious for little OC potential.

You might have to tweak the number of threads and affinity to get best performance.
You might also get better speed if you run as administrator, but I hesitate to recommend it for security reasons.

[Metroid]

your ram does have very high cl 18

I have 14,15,16 on my miners.

I use 3000 or 3200

if you crash 💥 when you open ryzen

something is set wrong in the bios.

For reference mine ryzen 5 3600 4ghz 1.25v, 12 threads does 7k with memory cl 20, 3333mhz. I guess it needs bandwidth more than anything, I would try 3600mhz cl 20 if your memory chip does.

[sech1]

I don't know MSI either but RandomX isn't dependant on DRAM speed so it's a waste of time to tweak it.

Don't spread lies. It is dependant on RAM speed and latency, we're talking about the difference between 12 kh/s and 15 kh/s on 3900X.

[Metroid]

I don't know MSI either but RandomX isn't dependant on DRAM speed so it's a waste of time to tweak it.

Don't spread lies. It is dependant on RAM speed and latency, we're talking about the difference between 12 kh/s and 15 kh/s on 3900X.

I'm willing to try with cl 14 and 2666mhz to see how it goes. I know for a fact that bandwidth is more important than latency for most use cases, for mining monero I have no idea.

[sech1]

I'm willing to try with cl 14 and 2666mhz to see how it goes. I know for a fact that bandwidth is more important than latency for most use cases, for mining monero I have no idea.

Latency is the most important for RandomX, bandwidth is not the bottleneck there. That said, 3200 CL14 will be better than 2666 CL14 because same timings at higher speed = lower latency.

[JayDDee]

I don't know MSI either but RandomX isn't dependant on DRAM speed so it's a waste of time to tweak it.

Don't spread lies. It is dependant on RAM speed and latency, we're talking about the difference between 12 kh/s and 15 kh/s on 3900X.

Randomx is dependant on latency which is why cache performance is more important than DRAM speed. There's no way
increasing DRAM performance, even by 25%, will increase the hashrate by the same amount. Huge pages, on the other
hand, can have that much of an effect by reducing effective memory latency with fewer TLB lookups.

I stand by my advice. There's nothing wrong with faster DRAM, it's just low on the priority list in this case.

[Walrusbonzo]

I don't know MSI either but RandomX isn't dependant on DRAM speed so it's a waste of time to tweak it.

Don't spread lies. It is dependant on RAM speed and latency, we're talking about the difference between 12 kh/s and 15 kh/s on 3900X.

Randomx is dependant on latency which is why cache performance is more important than DRAM speed. There's no way
increasing DRAM performance, even by 25%, will increase the hashrate by the same amount. Huge pages, on the other
hand, can have that much of an effect by reducing effective memory latency with fewer TLB lookups.

I stand by my advice. There's nothing wrong with faster DRAM, it's just low on the priority list in this case.

I've found noticeable uplifts in performance from tuning RAM timings on my 9900K, 3950X and 5950X systems.

I'll fish out some exact numbers later from the 5950X system. I'm not sure it's 25%, but it's quite a hefty bump, I'm sure it's over 10%.