I have a brand new Z790 Maximus Extreme. Accessing drives plugged into the SATA6G_E1-E2 ports (on ASMedia controller) hard-freezes the system after about 10 seconds of copying a file to/from the drives. Sometimes it will cause a CLOCK_WATCHDOG_TIMEOUT BSOD instead.
Same drives plugged into SATA6G_1-4 ports (on Intel controller) work fine. Same issue occurs with different drives plugged into the SATA6G_E1-E2 ports.
System passes all stress and stability tests (Cinebench, AIDA64, MemTest86). System has the latest drivers and Windows 11 updates installed.
Issue occurs both on the 0502 BIOS and the 0703 BIOS with default settings.
All of my other SATA ports are populated with SSDs, as this is a music production machine, so I can't switch over to the Intel controller.
I've searched online and it looks like this ASMedia SATA controller causes lots of issues. Sounds like it's a hardware failure since it was working fine for the first four days I've had the board and suddenly failed last night.