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Export a scene as .FBX and try to render it with another program that uses Iray.You know where the problem is, at least.
I asked the Nvidia and MSI support and sent them all log files and information. I will see what they will say because I'm at my wit's end.
They all use the same chip made by nVidia, the various 3rd party boards usually use the exact same design or very similar to the nVidia FE sample although later designs may move things around. Ultimately there's not much between them other than secondary support, e.g. power supply areas, choice of VRAM and the obvious phsyical design of HSF assembly. Your issue sounds more like a driver level problem, either at the GPU level, motherboard or OS installation level.
If there's a problem with your particular card design then it's a fundamental issue at the design stage level and would effect every one of that model produced. I doubt something so fundamental, and which would need to be so variant from the original design, would miss design and testing stages.
Incidentaly, I'm running a 5950x and a Zotac Infinity 3090 on 4.15. No issues so far.
I did an OpenCL test with that program.
Btw, the 2nd run of my 2nd GPU gave me 204111 OpenCL Score.
I tried to do a CUDA test with geekbench. It didn't work with the studio driver! But with the game ready driver it worked with both cards. Here're the results.
So, 3D Markt test was OK. OCCT test was OK. CUDA benchmark test was OK. But nevertheless, my cards work extremely unstable with Iray! My GPUs must be fine. So the theory that every 3090 hast the same chip is correct but there must be something in the MSI 3090 Gaming X Trio which is still different than the other cards which only can be fixed with a correct driver. Otherwise it also would work with Iray without any problem.
The CUDA test didn't work with the studio driver. But with the game ready driver it worked with both cards. Here are the restults for my 1st and my 2nd GPU.
Everything looks OK to me. So, 3D Mark test was OK. OCCT test was OK. CUDA benchmark was OK.
This makes my theory more and more correct, that the problem are not my GPUs and not my PSU but an incompatibility with Iray which only a correct driver can fix! I don't know why other 3090 are working fine. Maybe there's something in the Gaming X Trio which makes it more special. Maybe it's the power. After all it's the 2nd powerful 3090 on the market after the MSI 3090 Suprim!
Yeah - those are pretty impressive CUDA scores, so the cards look like they're working as advertised.
Have you seen that there are multiple BIOS available on MSI's website for the card (low noise and low temperature)? (https://www.msi.com/Graphics-Card/support/GeForce-RTX-3090-GAMING-X-TRIO-24G)
It's free and uses Iray. https://www.patchwork3d.com/ ;
Export/Create a scene and try to render it. This way you can isolate the problem. It's an Iray or it's a DAZ
Merged this discussion into one thread rather than have it split over two threads plus the DS beta thread.
You mentioned your temperatures have been low, but do you know what temperatures are actually measured and reported to you?
Did some digging around and there were comments about VRAM temp getting too high and causing problems with the cards you have.
Yes, I downloaded these BIOS drivers for MSI and installed them. But these are just for low noise and low temperature. And my temperature is already low. And I only can say the temperature which MSI Afterburner is showing me. And there it's lower than 60 degrees during rendering.
Currently, MSI and Nvidia are checking everything for me. I gave them all information. MSI also asked me about the firmware of the GPUs.
The thing is, that if I load some new stuff in a scene, it can work. Even with mulitiple characters. So, it's not that Iray completely doesn't work. But sometimes it works with a new scene and then sometimes it also crashes. Everything is so weird.
I will wait and see what MSI and Nvidia will say about that. Because it's really strange that both cards seem to work perfectly but I still got those issues with Iray. It just looks like a driver incompatibility. But maybe MSI will check the firmware and say it's an old one and will send me a newer one.
If you're having occasional crashes, then that's pretty similar to my experience with using my 3090 with DS 4.15.
I am able to run Geekbench 5 CUDA with 456.71 SD on my 3090 FEs, so maybe there's something different there. Score's a bit lower than yours (241K), as expected. The benchmark only tests the cards one at a time unless I'm missing a setting, unlike Iray. It's also a lot shorter; Iray renders are more stressful than anything else I've thrown at my cards.
It may still be worthwhile if you can confirm that your cards are otherwise fine in a multi-GPU CUDA-centric 3D rendering workload. Either another Iray client or Cycles/Octane.
Except that I also get these strange bugs during Iray preview and rendering: https://i.postimg.cc/Bbbv98nF/1.png https://i.postimg.cc/j21SssDF/2.png
And a card cannot be "a little bit defect". It's either full defect or not at all. So, you cannot say all benchmark tests are fine but because Iray is "more stressful", it's only defect in this case and at different times with different error codes depending on the driver version . I already could render until 18K iterations. Then the time kept moving but the cards were cool even though the MHZ was at the fullest. Afterwards, everytime Im trying to render, it only works for max. 2k interations and then I get this: https://i.postimg.cc/j21SssDF/2.png
I can also try it with that one free Iray program, but I'm 99,9% sure that it's not my cards which are the problem here.
Have you tried running the scene in the benchmarking thread to see if you have issues with that file? (https://www.daz3d.com/forums/discussion/341041/daz-studio-iray-rendering-hardware-benchmarking/p1)
Rafa I have a AMD 2950x which is just one generation newer than your cpu. I also have 64gb of system ram and a 1000 watt power supply and a Nvidia PNY xlr8 3090 on Windows 10 pro ver 1909 using nvidia studio driver 460.80 and Daz studio ver 4.15.02 and everything is rendering fine. I don't think this is a system issue or hardware problem. I think it is a driver issue or software problem but this is just my opinion and take it with a grain of salt. My system is a Alienware area 51 R7 threadripper edtion system but I removed the water cooler and replaced it with an aftermarket air cooler which is more reliable in my opinion. I sorry to hear about your problems with daz studio. If you get things working, my (too expensive!) 3090 is rendering a single Genesis 8 figure in under 1 minute, so I can only imagine that this is driving you nuts. I hope you get things worked out and good luck.
I think i figured out why Daz3d crashes for some, if you are on Windows 10 make sure that "hardware accelerated gpu scheduling" is turned off in Windows 10's Display settings it's under Graphics settings on the bottom of that panel.
I found out that with it on my computer was eating up my GPU vram and that made Daz crash!