Netgear Readynas 2100 PSU replacement

Question

Hello! I purchased a used rack mounted Readynas 2100 that was supposed to be working and in good shape off ebay.
Delivered yesterday and I plugged it in.... lights and noise.. then a pop and darkness. Any further attempts to turn it on resulted in nothing.
I assume its a blown PSU, model ST-220FUB-05E. Disassembled it and no capacitors have any obvious signs of damage.

I saw an old thread here about replacing the PSU on a ReadyNAS 1100 (HERE). There someone provided a pinout requirement for the 1100 and detailed how it also took the same ST-220FUB-05E PSU; though it was modified.

TLDR:
Does the Motherboards ATX pinout in a ReadyNAS 1100 match the pinout for the ReadyNAS 2100?
I cant seem to find a specsheet for it online.
If so. Ill get away with buying a cheaper modern PSU that I can butcher can to match the Pinout Provided (HERE) from the above mentioned forum post.

Thanks in advance.

Sandshark · Answer

I don't have a 2100, but it most likely does match. Check the wire colors: https://www.readynas.com/download/archive/pdf/ReadyNAS_PSU_pinout.pdf .

You may want to consider a higher wattage supply.

convexburrito5 · Answer

Thanks for the quick reply! The pinouts were correct and I got it fixed and running again.

For anyone wondering in the future, I purchased a 300W 'Apevia PS-ITX300W Mini-ITX/Flex ATX 300W Power Supply - Black' off amazon for 35$ and it proved more than enough to be a replacement. I could have gotten away with a cheaper PSU with less cables. All you need is a PSU with a modern 'standard' ATX connector and a cpu connector.. or an additional connector with two extra +12V Pins.

woods00 · Answer

hey im in this position now and im wondering if this psu is still working for you. also did you have to modify it or can you just use the 20pin without the +4?

Sandshark · Answer

You have to modify the pin-out.&nbsp; The wires that are -12V and -5V on a standard supply (though some no longer have the -5) have to be swapped to +12V.&nbsp; That's the reason for the additional 2 +12V wires -- to insert them in place of the others.&nbsp; The pin-out diagram is still there.&nbsp; Did you look at it?To just check if the supply is the problem, you can just remove the -5V and -12V and power up without drives.&nbsp; But you need the extra +12V with drives installed.&nbsp; You can also make an adapter and use a standard ATX supply externally to test it.

Forum Discussion

Netgear Readynas 2100 PSU replacement

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