Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

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.)

share|improve this question
Since you do not define "brain dead"ing, it is hard to answer this question. Do you mean relying on Serial instead of network connectivity for shutdown signalling? – kmarsh Apr 7 '10 at 17:17
"Brain dead"ing was a specific procedure APC was referring to; as I recall, it consisted of holding the buttons down at the same time after cycling the power, or something. – Jay Kominek Jul 31 '10 at 4:06
I received the same answer from APC with a similar problem a month after purchase - evidently this company is going downhill. A one month old, top end UPS supply should NOT require a Brain Dead procedure due to a failure. For them to even suggest this is incredibly unintelligent. It should be an immediate RMA. – user68917 Jan 31 '11 at 18:40
up vote 9 down vote accepted

Personally, I would RMA the unit ASAP.

share|improve this answer
Agreed. Why even risk it -- RMA. – Sam Halicke Nov 10 '09 at 15:51
I was having a little trouble getting an RMA out of them, so I thought I'd ask about while still pursuing the RMA. Finally got it out of them when it failed again. weee. – Jay Kominek Nov 10 '09 at 17:32
Shocking really. The device is faulty, they should have offered an immediate RMA instead of trying to fudge into working a different way! Good work! – Izzy Nov 10 '09 at 17:36
I'm surprised. APC has always RMA'd stuff for me real quick, or sent replacement parts for things damaged in transit. – Kamil Kisiel Nov 10 '09 at 17:45

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.