Does the display show artifacs when Above 4G Decoding set to Enabled is normal? I turn off the computer when I see them should I wait?

If not active 4G when connecting the fifth GPU appears a memory error, did it happen?

Can somebody film the startup of the miner?
Dont worry for the weird screen .... it is normal in this pice of S&%t motherboard when you enable the 4g decoding