When BSOD hits, you will see 4 hex values - BSOD parameters. For A5 (ACPI_BIOS_ERROR) they can be decoded using this table:
https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/bug-check-0xa5--acpi-bios-error

This list is not complete and I have a standing bug report to fix that.