g5.48xlarge instance launch failed

Hi, I am trying to launch a g5.48xlarge instance. But it kept saying my configuration was not supported.

My configuration is listed below:

Region: US-WEST-2 (Oregon)

AMI: I choose one Ubuntu AMI from the "Community AMI" from verified provider and the AMI explicitly says it support G5 instance.

Networking: I just choose the default existing group

Storage: I tried GP3, GP2, IO1, IO2 (requiring 2200 GB)

Can anyone help me here? Also, I have encountered issues in launching P4 instance and cannot find any tutorial documentation. It is good to provide templates for each instance, so people know what should choose and what should not.

Thanks.