I've done the following:
PCIE : Auto
4G Decoding : Enabled
Integrated Graphics : IGD
But when it boots it gives a ton of errors on AMDGPU ring tests.
*ERROR amdgpu : ring 3 test failed
*ERROR amdgpu : ring 4 test failed
*ERROR amdgpu : ring 5 test failed
*ERROR amdgpu : ring 6 test failed
*ERROR amdgpu : ring 7 test failed
*ERROR amdgpu : ring 8 test failed
*ERROR amdgpu : ring 9 test failed
It also gives errors after that from powerplay saying "failed to send message"
After using Auto, Tried with GEN1, then GEN2 and have the same problems.
(Also, the board has 7 slots and I'm using the first 6 from left to right... should I be using different ones for just 6 GPUs?)
Thanks.
UPDATE : Works with 1 GPU. Going to diagnose slots / risers / cards to try and find the issue.
UPDATE2 : Went through each GPU and RISER... looks like one GPU is bad and is causing the errors. Too bad. Looks like the settings were all correct though. Kept the post for others.
I am having same issue with same board , I can only get 2 running at the same time. But I have another rig with 7 cards running just fine with the same mobo.