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Forum Discussion
Ultra 4 doesn't boot anymore after restart
My ReadyNAS Ultra 4 has been running OS 6 happily for a long time now. Recently I restarted it using Frontview. It powered down as usual, but after that it didn't boot anymore. When I turn it on, the...
That does not sound like a problem USB recovery will help with. When boot from flash fails, there is usually more on the display. It doesn't particularly sound like a power supply issue, either. Could be a RAM problem.
I had put in a 2GB RAM module from Corsair a long time ago. Luckily I saved the module that orignally came with the NAS. However, when I use the original module, I get the same result as with the Corsair module.
I would not recommend you purchase a replacement supply and try that -- very low probability of success. However, you can create an adapter cable for a standard ATX supply mounted externally and see if that works -- it's a lot cheaper to just see if that will work or to use it to recover any files not already backed up. But since you were already running OS6, you can just put the drives in a newer NAS designed for OS6 and all should be well, assuming whatever took out the NAS didn't damage the volume.
I should have some spare ATX powersupplies somewhere, so I first try to modify one of those using the guide shown here:
It'll have to wait till after my holiday though, so it might take a few weeks...
What I have found best is use a 20/24 pin ATX extender cable and re-wire the two extra 12V in the 4-pin section of the 24-pin side that mates with the supply to pins 12 and 18 (-5V and -12V in ATX) on the NAS side.
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