Finalizing my New Desktop Rig 144 GB VRAM + 128GB RAM - 3rd GPU possible in this setup?

Posted by pmttyji@reddit | buildapc | View on Reddit | 9 comments

Unfortunately now I can't go with Server setups(like Epyc or Threadripper) due to current price of ECC RAM & Processor, Motherboard as well. Server setup instantly increases the budget. We don't want to go with any used ones. So below is my planned current setup.

I know that Consumer Desktop setups are not suitable for more GPUs like 4 & above. What I'm expecting is to use 3 GPUs in this setup. Can I expect decent performance with 3 GPUs & without any stability issues? I have an SSD to be added.

This is what I got from online for that motherboard.

The ASUS ProArt X870E-Creator WiFi has a total of 24 PCIe lanes available from the CPU, with the first PCIe x16 slot dropping to x8 when the second x16 slot is in use, and the second slot can drop to x4 if the M.2_2 slot is enabled. This configuration allows for flexible expansion but may limit bandwidth depending on how the slots are populated.

So 3 GPUs + 1 SSD is possible in this setup without any stability issues? I'm fine with some performance penalty on 3rd GPU. I don't want any stability issues.

Someone mentioned that combinations x8 x4 x4 or x4 x4 x4 are fine. x1 is performance killer.

So please check this setup & let me know the possibility. Thanks