AMD 2990WX stability and performance problems

[zivmil]

hi guys. my boss bought an amd 2990wx system
2990wx
aorus pro x399
64gb corsair lpx 2666Mhz
antec 850W Psu
Arctic Freezer 33 TR
now i am having performance and stability problems with this setup.

stability wise when i setting the ram to XMP profile to work at 2666 Mhz I am getting black screen after few min of rendering no matter what.
at 2133 mhz i can render and work and get black screen after 6 or 8 hours only... and some days not getting at all.

performence issues - when i check the CPU mhz speed with ryzen master softwere i can see that when i render all cores are going down to 1.5 Ghz only... when the computer is doing light tasks the peak cpu speed is up to 3.8 Ghz.
in ray benchmark i am geting 20000 score.
is it normal? i thought that all cores need to run at 3000 Mhz at least..
1.5 sounds very low.

i am thinking of telling my boss to replace the cooler and MB
but the shop that he bought it from telling us that the cooler and mb should work fine with 2990wx and maybe the problem is in the RAM.
but they dont want to give warranty to 2666 speed because they dont allow us to change nothing at the bios.
can u guys give me some feedback on if 2990wx is working normal at 1.5 GHz all 32 cores? when rendering?
thanks

[Morbid Angel]

If you search the forum you will find that some people have 2990wx run well and stable, but some have issues. I personally built two systems i9 9980xe and 2990wx. Which i9 was / is performing very well without any issues the 2990wx was a total nightmare, always bsoding, clocking down/overheating (although I bought the best cooling I could get) etc etc, apparently if you don't go with top end motherboard and some water cooling or whatever it will not perform as well. Additionally when I was able to run it more or less stable it (while scoring higher then i9) in benchmarks was performing worse on renders then i9 especially longer renders. I returned the system and changed it for another i9 9980xe and overclocked that a bit and never been happier

[squintnic]

Im trying to find a time to sell my 2990wx and move to an i9 due to the above problems.

A real nightmare. I'm not an IT person so have no idea what a BIOS is or WHY i would need to fiddle it to get it to run at advertised speeds, so much conflicting advice around as well. What if I overcook it in the BIOS how would I restart it? Been using it at the throttled speeds due to needing to use it for producing work on, cant risk not having it working. Poor overall performance.

AVOID

[Muhammed_Hamed]

but they dont want to give warranty to 2666 speed because they dont allow us to change nothing at the bios.

This makes 0 sense, running RAM under its rated frequency is covered by warranty.. These people know nothing about hardware, read below
The build is very bad overall for multiple reasons, you picked the cheapest air cooler in the market, like what do you expect from a single fan??
Your CPU has to be throttling the entire time, you should get a 240 or 280 AIO
Another point is that this board is not designed for the 2990wx, you need the Aorus Extreme version , or Zenith extreme or MEG Creation.. Power phases on these boards can handle the 2990wx.. entry level boards will have higher VRM temps and you will get all kinds of stability issues
Third mistake is RAM, you really need 3200 MHz RAM, not only for stability but something like Gskil TridentZ works nicely out of box, it is designed for Ryzen and you will save yourself a lot of headache
I've used the 2990wx in over 30 builds, it is by far the best high end cooler in the market. I've got few machines to run at 4.1 GHz on all cores with 6200 score in Cinebench, which is 40% faster than what the i9 9980XE can achieve
Even for the power supply, why the heck would you use this one in such a high end machine?? when you have brands like Corsair, Seasonic and EVGA around?
This specific power supply is trash, and have very high fail rate.

[Muhammed_Hamed]

About thermal performance, here is 3.8 GHz on all cores under stress testing
Max temperature is 63 degrees with a 360 AIO.. so any thermal throttling is 100% duo to user's error
It really takes few minutes to make a thread and ask for advice, but most people won't bother
The 2990wx has better performance than the i9 9980XE, and runs cooler with/without OC

[squintnic]

muhammed do you have a guide or tutorial in mind for getting better perf out of the 2990WX? Im getting lost in google info and have some downtime that id like to spend getting some better performance out of my chip. it ranks low on vray benchmark compared to other 2990WXs

CPU - 2990WX
MB - Gigabyte X399 DESIGNARE EX MB
RAM - 128GB Corsair Vengeance LPX 64GB (4x16GB), PC4-25600 (3200MHz) DDR4
COOLING - Cooler Master Wraith Ripper CPU Cooler

Its scoring around this on vray benchmark - 19 195 which is one of the lowest scores out there! crazy!

[Muhammed_Hamed]

Hey squintnic

There are couple of issues with your build, most importantly your Mobo
The Designare is an entry level Mobo, probably one of the cheapest X399 boards in the market, if not the cheapest
It was released before the 2990wx, VRMs and power phases are not designed for this CPU
What happens is that VRMs get to 120 degrees after few minutes of stress testing, your system will be very unstable and you might get BSOD
You need one of these three boards, MEG creation X399, Zenith Extreme X399 or Aorus Extreme X399
They were designed for the 2990wx, first one has best passive cooling for VRMs in the industry.. and it is the one used in my screenshot above
The other 2 use active cooling, and they will do a good job.

Second problem is the CPU Cooler, there is definitely better options.. like common
Spending 2k on CPU and nearly 1200 on RAM, you might want to spend 50 more Euros on 280 or 360 AIO(you will need to check if there is enough space for this in your case)..I recommend H150I Pro or H115I Pro
Right now and Depending on the airflow in your case, your might be thermal throttling and losing bunch of performance

Third issue, is 128 GB of RAM, which can be a challenge to get them to run at 3200
Even at 2933, it is not easy to achieve

Just not to Hijack this thread, make a new one.. I will guide your throughout troubleshooting

[Morbid Angel]

Hey squintnic

There are couple of issues with your build, most importantly your Mobo
The Designare is an entry level Mobo, probably one of the cheapest X399 boards in the market, if not the cheapest
It was released before the 2990wx, VRMs and power phases are not designed for this CPU
What happens is that VRMs get to 120 degrees after few minutes of stress testing, your system will be very unstable and you might get BSOD
You need one of these three boards, MEG creation X399, Zenith Extreme X399 or Aorus Extreme X399
They were designed for the 2990wx, first one has best passive cooling for VRMs in the industry.. and it is the one used in my screenshot above
The other 2 use active cooling, and they will do a good job.

Second problem is the CPU Cooler, there is definitely better options.. like common
Spending 2k on CPU and nearly 1200 on RAM, you might want to spend 50 more Euros on 280 or 360 AIO(you will need to check if there is enough space for this in your case)..I recommend H150I Pro or H115I Pro
Right now and Depending on the airflow in your case, your might be thermal throttling and losing bunch of performance

Third issue, is 128 GB of RAM, which can be a challenge to get them to run at 3200
Even at 2933, it is not easy to achieve

Just not to Hijack this thread, make a new one.. I will guide your throughout troubleshooting

Good points. I think def a more serious approach to managing this cpu is required or else you have problems like I / others do.

[PIXELBOX_SRO]

I run TR4 on Aorus Extreme and 128GB at 2933 performing very well.
I can guys gve you exact hardware spec if you want tomorrow when i get to office. No need for some magic watercooling...Kraken x72 will do just fine btw

[squintnic]

thanks muhammed,
ill start a new thread (and sell the shit parts of this machine that I skimped on to hit a budget)

[Muhammed_Hamed]

Good points. I think def a more serious approach to managing this cpu is required or else you have problems like I / others do.

The 2990ws uses the same TR4 platform that have been around since first generation, which is an advantage in many ways
For Intel, they migrated from X99 to X299 when the i9s were released.. that is why you see less user errors, but eventually the i9s run hotter and offer worse value and performance
like I said, it takes few minutes to make a thread and ask about hardware choices.

[zivmil]

Hi quick update. i manage to convince my boss to replace us the MB and Cooler to auros extreme and bequiet TR4. now all cpu cores run fine at above 3.2ghz at load and with lower temps. no crash so far.
too bad the memory still runat 2133 because the shop forbid us to change the bios settings for warranty. its not my computer so i dont want to change things. but never mind this thing run very fast at renders even at 2133Mhz speed

[Muhammed_Hamed]

zivmil Good to hear!
You can actually run your RAM at its rated speed, which is 2666 and without using the bios
So they really cannot complain about warranty
Download the Aorus extreme app, it will give you controls over your RAM and CPU OC
What kind of temps are you getting now? with the bequiet cooler?

[Karol.Osinski]

Thanks for all your advices Muhammed, very valuable info!