I determined that the enclosure’s controller board is indeed “partly” fried.  I used the enclosure with another system and it caused the system to freeze but no POST issues.  This would have been a PAIN to discover.

The drive survived though despite some slight data corruption.  I lost my Virtual Server 2005 R2 install from the backup as there were too many corrupted files.  I simply restored it as is and uninstalled it and then reinstalled it, I did not lose any virtual machines is what was important.

The blitzed drive needed to undergo a 3.5hr long nail biting chkdsk though…

Overall, my 4GB system has been happily recovered and I only lost an external drive enclosure as casualty.

Theoretically, I could take the controller board to an electronics repair shop nearby and it would likely be a relatively inexpensive repair.  I may yet go that route…

Lesson learned, check the devices for power requirements and check the adapters for power output!

Read the complete post at http://owsug.ca/blogs/brad/archive/2010/03/08/Recovering-data-from-a-_1820_Partly_1920_-cooked-piece-of-hardware-_1320_-Part-2.aspx