Ryzen 9000 series owners, are you using EXPO?

If yes, what speed? What RAM kit are you using?

Just curious how common it is to use EXPO.

I need to RMA a 9600x and I suspect the reason for failure is an issue with the memory controller, probably due to EXPO (hangs on VGA LED during cold boot, hangs on CPU LED when waking from sleep, only solution is reboot). Does AMD reject warranty for EXPO? I did mention I "disabled expo" as part of troubleshooting before realizing that they might reject it since it's technically OC, but they accepted the RMA.