Kevin,

I had the same thing happen to me one night with a KA650 in a BA213 case,
running 3 ESDI disks.  I guess that power supply wasn't used to having so
much fun!  Anyway, I had 4 extras that I had picked up in my favorite
outdoor yard.  I popped out the original, put in a replacement, and 
that machine is still working fine.  I still can't figure why the original 
power supply went belly up, because the replacement in the same machine
has seen a lot of use since then, with no problems.  

Of course, as they like to say, YMMV.

Doug

On Tue, 11 Jul 2000, Kevin Ogden wrote:

> I got my Microvax 3300 today...  powered it up, ran fine for a little while then
> I noticed a little waft of smoke coming from the power supply, I shut it down
> and when I powered it back up a few minutes later the power LED on the power
> supply didn't turn on but the fans kicked in.  
> 
> Now the processor module comes up with an F that stays there on the LED display.
>  The switch for ethernet media works (the lights change when I flip it.  I'm
> pretty sure the power supply is probably toast.  If a power supply in a VAX
> takes a $hit will it take out the backplane or the cards or will replacing the
> power supply take care of it?
> 
> What does the F mean on a KA640 anyway?
> 
> I'm pretty bummed.
> 
> --Kevin
>