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AMD Zen 2 (Ryzen 3000) - *** NO COMPETITOR HINTING ***

Illuminist said:
Had to settle for 4.35ghz, everything else was dodgy or got to hot.
Still much much better than the pbo or auto could manage, and finally beat my x470 boards performance.
Click to expand...
Yeah that is what i got on mine so far, 4.35ghz all cores @ 1.29-1.3v , temps reaching 65c and barely reaching 40c while gaming, my pc is under the AC unit and all that cold air is landing on the aio radiator, i can make it barely reach 60 under stress test but that AC is freezing me too hahahahah .
 
I finally got my 3900X to replace my 2700X after three weeks of waiting. I am using it with the following setup.
  • Asus CH6 Hero with BIOS 7304
  • PE level 2
  • CPU boosting to 4,525 - 4,575 boost on 3 cores, all core boost in CB15 seems to be between 4,025 and 4,075 MHz (is this low?)
  • Team Group Xtreem 8 Pack Edition DDR 4000MHz 32GB (4x8GB)
  • Noctua NHS-12S
  • Temperatures are 41-43c idle, 77c Load (multiple runs of CB15)
  • Inno3D RTX 2080

I removed my 2700X, popped in the 3900X and it booted no problems at default BIOS settings. I then tried using the latest Ryzen DRAM calculator to get safe settings for my RAM and as usual it failed abysmally. I have never had success with this tool :(

Instead I have started just tweaking DDR settings by myself in the BIOS. I now have it set at 3800MHz with FCLK at 1800, CL16 at 1.4v. I have to run some stability tests and may need to tweak for stability. So far I am delighted with how the CH6 is working so well with this CPU. So maybe the three week wait until a stable BIOS was released was worth it. I am also quite pleasantly surprised at how well it copes with 4x stick of DDR4.

One thing that is annoying is that my GPU ramps to 100% fans on power on/reset. It did not do this with the 2700X and the only change has been the CPU.
 
Last edited:
ICDP said:
I finally got my 3900X to replace my 2700X after three weeks of waiting. I am using it with the following setup.
  • Asus CH6 Hero with BIOS 7304
  • PE level 2
  • CPU boosting to 4,525 - 4,575 boost on 3 cores, all core boost in CB15 seems to be between 4,025 and 4,075 MHz (is this low?)
  • Team Group Xtreem 8 Pack Edition DDR 4000MHz 32GB (4x8GB)
  • Noctua NHS-12S
  • Temperatures are 41-43c idle, 77c Load (multiple runs of CB15)
  • Inno3D RTX 2080

I removed my 2700X, popped in the 3900X and it booted no problems at default BIOS settings. I then tried using the latest Ryzen DRAM calculator to get safe settings for my RAM and as usual it failed abysmally. I have never had success with this tool :(

Instead I have started just tweaking DDR settings by myself in the BIOS. I now have it set at 3800MHz with FCLK at 1800, CL16 at 1.4v. I have to run some stability tests and may need to tweak for stability. So far I am delighted with how the CH6 is working so well with this CPU. So maybe the three week wait until a stable BIOS was released was worth it. I am also quite pleasantly surprised at how well it copes with 4x stick of DDR4.

One thing that is annoying is that my GPU ramps to 100% fans on power on/reset. It did not do this with the 2700X and the only change has been the CPU.
Click to expand...
So same like Me zero problems with swapping over from 2700x on crosshair motherboard. Plug and play.
 
ICDP said:
I finally got my 3900X to replace my 2700X after three weeks of waiting. I am using it with the following setup.
  • Asus CH6 Hero with BIOS 7304
  • PE level 2
  • CPU boosting to 4,525 - 4,575 boost on 3 cores, all core boost in CB15 seems to be between 4,025 and 4,075 MHz (is this low?)
  • Team Group Xtreem 8 Pack Edition DDR 4000MHz 32GB (4x8GB)
  • Noctua NHS-12S
  • Temperatures are 41-43c idle, 77c Load (multiple runs of CB15)
  • Inno3D RTX 2080

I removed my 2700X, popped in the 3900X and it booted no problems at default BIOS settings. I then tried using the latest Ryzen DRAM calculator to get safe settings for my RAM and as usual it failed abysmally. I have never had success with this tool :(

Instead I have started just tweaking DDR settings by myself in the BIOS. I now have it set at 3800MHz with FCLK at 1800, CL16 at 1.4v. I have to run some stability tests and may need to tweak for stability. So far I am delighted with how the CH6 is working so well with this CPU. So maybe the three week wait until a stable BIOS was released was worth it. I am also quite pleasantly surprised at how well it copes with 4x stick of DDR4.

One thing that is annoying is that my GPU ramps to 100% fans on power on/reset. It did not do this with the 2700X and the only change has been the CPU.
Click to expand...

CH6 user here.

7304 (AGESA 1003AB) has lower boosts than 7201 (AGESA 1002). Also, I noticed 25-50mhz drop at around the 75c mark.

Do you mind sharing your RAM and voltage settings. I'm not having the best of times with my 4x8GB G.SKill 4000MHz c18 BDie. Currently stuck at 3600MHZ CL16.
 
For now I am simply using 3800MHz, 1900 FCLK, 1.4v, 16,16,16,16,36 with all other settings on auto. I did a quick RAM Test and it failed at 219% so I might have to loosen the timings, up the volts, or drop the speed.
 
Well fubar...

One 3700X hits 4.5GHz CCX0 and 4.3GHz CCX1 at 1.35v all core OC per CCX at about 73C under load. Absolute blinder of a CPU.

The other turned the underside of it's cooler purple and at default hit 90C under load with no OC or anything. If anything I think the CPU is actually just crap and needs to be RMA'd.

Quite surprised at the level of variance from the two CPU's...
 
3900x installed! :D

I left my PC overnight and had been logging activity just before but mainly general setting stuff up. Below is screen grab from HWInfo. Seems on stock settings that it is handling boost OK, etc. I haven't even started looking at what I will do OC'ing wise. Temps didn't go above 68 degrees either...

Interested to hear peoples thoughts - will definitely need to sort out RAM frequency and timings. I have 3600 RAM but think it was only showing 2400.

qa0KzYR.png
 
mikeym said:
3900x installed! :D

I left my PC overnight and had been logging activity just before but mainly general setting stuff up. Below is screen grab from HWInfo. Seems on stock settings that it is handling boost OK, etc. I haven't even started looking at what I will do OC'ing wise. Temps didn't go above 68 degrees either...

Interested to hear peoples thoughts - will definitely need to sort out RAM frequency and timings. I have 3600 RAM but think it was only showing 2400.

qa0KzYR.png
Click to expand...

Technically it's not handling boost settings correctly as you should see 4.6Ghz at some point on single core workloads, yours is only hitting 4.57Ghz on around 3 of the cores. However it seems to be an issue with the AGESA 1.0.0.3 based BIOS as I also have the same problem with my 3700x on AsRock X370 Taichi. I opened a support ticket with them and they are aware of the issue and can recreate it on their test systems. It might be worth dropping a support request to gigabyte too just so as many vendors are aware of the issue as possible.
 
@Zeed I was using 3733Mhz C16, with extremely low sub timings at 1.475v, went to sleep and left Karhu RAM test running. When I woke up today it had 1 error after more than 7hrs and 30,000% coverage. I don't know if I should leave it like that, but just in case I put the voltage up to 1.482v to try and help. Don't know if I should go that route or try checking which sub timing is causing the error.
 
Nghtmare said:
@Zeed I was using 3733Mhz C16, with extremely low sub timings at 1.475v, went to sleep and left Karhu RAM test running. When I woke up today it had 1 error after more than 7hrs and 30,000% coverage. I don't know if I should leave it like that, but just in case I put the voltage up to 1.482v to try and help. Don't know if I should go that route or try checking which sub timing is causing the error.
Click to expand...
Hmm its possible that You need LESS volts not more. Not sure if You tried 1.45 ?? Cl16 does not need that much usually I dialed wayy back from 1.46 to 1.425 even tho 1.4 passed 6 hours ramtest no problem. But I know extra volts in to DDR help with IMC stability on Ryzen at lest on Zen1 and Zen2 did. Make use of voltage leakage hehe.
 
mikeym said:
3900x installed! :D

I left my PC overnight and had been logging activity just before but mainly general setting stuff up. Below is screen grab from HWInfo. Seems on stock settings that it is handling boost OK, etc. I haven't even started looking at what I will do OC'ing wise. Temps didn't go above 68 degrees either...

Interested to hear peoples thoughts - will definitely need to sort out RAM frequency and timings. I have 3600 RAM but think it was only showing 2400.

qa0KzYR.png
Click to expand...
Nice. What Bios are You on and did You have had any problems ??
 
Zeed said:
Hmm its possible that You need LESS volts not more. Not sure if You tried 1.45 ?? Cl16 does not need that much usually I dialed wayy back from 1.46 to 1.425 even tho 1.4 passed 6 hours ramtest no problem. But I know extra volts in to DDR help with IMC stability on Ryzen at lest on Zen1 and Zen2 did. Make use of voltage leakage hehe.
Click to expand...
I had tried 1.452v before, however while gaming I had a crash, so I thought it was the RAM and increased it a bit. Im running 3733Mhz 16 16 16 28 44 among other things.
 
opethdisciple said:
A base minimum is SOC 1.1v. I hope you have set that right?
Click to expand...

Thanks for the reminder. I have set it at 1.12 and will run some mem tests. I suspect I will be settling on 1.35v and 3600 CL16 as it passed Karhu RAM Test to 1000% earlier. I only stopped it because I had actual work to do :)

I did try some tuning at 3800 FCLK 1900 and could not get it to pass the Karhu RAM Test more than about 220%. I am a complete noob when it comes to RAM tuning so I suspect it is doable, just not by me :)
 
I feel like a noob again with this new stuff and I kinda like it, got that hungry learning feeling.

Is 55000 ish ram read speeds about right, i get 65ns latency, but it changes everytime I run the test, sometimes 70, next 68 then 65.

Also @Zeed when changing the llc last night, every single core suddenly decided they would do 4.4ghz, the 3 that were at 3.8 decided to join in the fun, it gave me a cpu z multi score of 9000 and a cinebench score of 7655!! But the temps peaked at 91.c so I thought best to go down to 4.35. But it's weird that those 3 cores suddenly came to life
 
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