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Forum Discussion
Power failure
This morning the device is not working at all - no lights, nothing. The power adaptor is proving 12V, but there is no activity on the NAS.
I'm looking for advice about what to do next. Is there any...
Thanks for the reply. I have taken the drives out and nothing. No lights, no fan, nada. So RAIDar doesnt get started! It feels like a power supply failure so i'm tempted to buy a new adaptor - must be worth a try @ £13. The pins have 12V on them, but that doesnt mean that it is supplying enough when loaded.
The other thing a thought of was that i should check that the fan works. It wouldn't be the first computer that wont start because of an interlock.
You are right about a backup solution. This has been a long running topic. I used to use tapes but they were unrelaible. These days i want off site storage, e.g. cload storage. The two possibilities that i tried previously didnt seem to work reliably. My latest thought was to sync with another device located somewhere else - but havent got round to it yet.
I don't have a 104, but I am not aware of any ReadyNAS that will fail to start because of a non-fuctioning fan. The power supply does sound like a possibility. Can you measure the input voltage (with the load connected)?
some (long) time ago i had a pc that failed to start because it was monitoring the fans feedback signal to check that they were operating, and one of the fans had died. I wondered if the NAS was doing the same (otherwise what is the point of the feedback signal wire).
I checked the power supply on it's own and i see 12v.
I checked the fan with a separate 12v supply and it works fine, and substituted with another that had monitoring points.
Without the fan connected i see 12v on the pins on the NAS circuit board, but when i plug in (either fan) the voltage drops to nearly zero. So i'm buying a replacement power supply. I'm assuming that there is a high impedance in the power supply - either a damaged cable or dry joint somewhere.
Hopefully, it's just the supply. The other possibility is that something in the NAS is shorting out the 12V (maybe a bad capacitor). Did you also measure resistance into the NAS to see it's not a dead short?
I once bought a used, non-working NAS being "sure" I could fix it with a power supply swap. No such luck, it was something shorted on the motherboard. But the rest of the parts were worth what I paid.
Thanks for the response. The replacement power pack turned up today, but didn't fix the problem. Gonna have to get more technical with the motherboard i think.
What did you mean by measureing the resitance into the NAS? I cant access the internals of the power pack.
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