My CE was able to find out that the reason the HASS power supplies were revised
is because one supply of a pair would sometimes get into an overvoltage
situation, and then the other supply would try to drag the voltage back down,
and this battle for control over the voltage would continue until one supply
burned itself out.

I don't know the frequency with which the above scenario occurs.

I'm still awaiting word on the specific cause of *both* of my HASS power
supplies failing at the same time.
--
Mark Bixby                      E-mail: [log in to unmask]
Coast Community College Dist.   Web: http://www.cccd.edu/~markb/
District Information Services   1370 Adams Ave, Costa Mesa, CA, USA 92626-5429
Technical Support               +1 714 438-4647
"You can tune a file system, but you can't tune a fish." - tunefs(1M)