I recently got a SUA750RM1U which developed problems shortly after installation; dropping communications with apcupsd, lighting up the load lights in improbable fashions, beeping continuously for no apparent reason, switching to battery and staying there when the other UPS right next to it is just fine.
APC's response was to "brain dead" it. (And use "Power Chute" instead, but, whatever.)
So: Does this brain deading tend to do anything useful for Smart UPSes? I've never had to deal with this before, and, basically, I'd like to know when, if ever, I can trust the UPS to run production equipment again.
(added: clearly I need to, and will, RMA this particular unit. but I'm still interested to know if this "brain dead"ing ever seems to solve problems, for future reference.)