The update of the HBA firmware to version 2.12 seems to solve” the missing drives after restart” (genuine Restarts and Crashes) issue.

However the BSOD are still there:

STOP 0x...D1, 0x,...34C

DRIVER_IRQL_NOT_LESS_OR_EQUAL

tscpip.sys

This happens if Adaptec Agent (Service) is enabled.

On our system this error is reproducible.

I did at least 3 installations!

Adaptec, is using the S500PSL board, unable to reproduce this error.

This time the crash damaged the boot sector (?): chckdsk C: "second NTFS boot sector unwritable" and Windows Backup fails every time.

Fulco