We use Zen 11.4.3. I can't boot after PBA when machines are set to AHCI (no RAID). After authenticating in PBA, we get black screen or "Disk access error" error message. If I image in ATA mode It works. I tried the DMI settings as explained to find the right configuration but that does not help. Always the same outcome. AHCI in BIOS = unable to boot to Windows 7 after successful PBA authentication. I have a SR opened but no luck with that.

Please advise