Good idea, however I don’t have the ability to run GTA5 on linux, so I wasn’t able to test it. Although, at stock settings for the 5700s, I was able to play dirt rally 1 for an hour each utilizing all 6 of the cards.
On my rebtech board with 8x RDNA2 GPU’s, I didn’t bother changing any of the overclocks or undervolt when testing to see if those parameters were what’s causing the problem. Still I/O errors and never reached the splash screen and i would have to manually power it down.
You’re correct in that the rebtech board does not support video out while NVIDIA cards are installed, I’d have to remote in using SSH to get a readout.
In my case, I have 2 AMD rigs, 6x 5700 RDNA1, and 8x RDNA2. For some reason, the 5700 rig is never stable on any version past 203. Not a big deal, but I can’t undervolt at all, so my 6800XT are running at 175w and my 6700XT are running at 130W. I’m beginning to think the Rebtech board is not ideal.
On the other hand, my NVIDIA rig with 2x2060S, 2x2070S, and 2x3070FHR has an uptime of 63 days and counting…
Anyways, I’m in the process of playing various games on my 6x RVII on my other gaming computers and it works flawlessly. I lapped the mating surface to the die and the temps are drastically better.
At this point, I’m guessing that the Rebtech board needs a BIOS upgrade or something.
In addition, my 5700 rig won’t undervolt at all, been trying since 2019 to no avail. Maybe it is the old Mobo I used back in 2017 during the first mining rush.
Ah well, if anyone has anymore insight into this inane issue, please let me know, I’d greatly appreciate it so much.