I have a ReadyNAS 1100 Model RNR4450-100NAS that I bought in January 2008. It won't power on so I suspect a bad power supply. I see that Amazon.com has a replacement Seventeam ST-220FUB-05E power supply. I also see some postings indicating that a couple of pins may need to be swaped/changed in order for it to work on a ReadyNAS. Would anyone know if I need to change a some pinouts on the 20-pin connector in order to use the replacement power supply on the ReadyNAS 1100? I am trying to determine the level of effort needed to resurrect the NAS system. The alternative is the recycle the unit, and save a lot more pennies for a replacement some day. My plan, so far, has been to use the ReadyNAS as media storage for my Apple Xserve running macos El Capitan. Thank-you,Dave

The PSU for NV, NV+, NVX, 1100, 1200, 1500 has a special connector pinout. This PSU is available on ebay:http://www.ebay.co.uk/itm/Readynas-NV-NV-NVX-1100-1200-1500-PSU-Replacement-for-ReadyNAS-ST-220FUB-/152363514480?hash=item237992ba70:g:rdwAAOSw-0xYgho~

VKGH wrote: The PSU for NV, NV+, NVX, 1100, 1200, 1500 has a special connector pinout. This PSU is available on ebay: http://www.ebay.co.uk/itm/Readynas-NV-NV-NVX-1100-1200-1500-PSU-Replacement-for-ReadyNAS-ST-220FUB-/152363514480?hash=item237992ba70:g:rdwAAOSw-0xYgho~ If you want to make the modification yourself (saving some money), the pin out is here: http://www.readynas.com/download/archive/pdf/ReadyNAS_PSU_pinout.pdf

Thank-you VKGH and StephenB for your replies. After much introspection and consulting with a hardware guy (I'm mostly a software guy administering his own servers and laptops), I decided to retire the ReadyNAS (it's been unused for quite awhile -- I was looking to repurpose it recently) and save my pennies for an up-to-date replacement. I could've probably done the modifications myself but I have higher priority (and less risky) items on my To-Do list. I've popped the drives to give to my hardware guy who has the equipment to verify that they're still good to use. The remander of the system will head to an electronics recycler. It was good while it lasted, and thanks again to those that responded,Dave

Hi Stephen. I came across your post because I am replacing the same Seventeam ST-220FUB-05E PS, but not for the NAS. It is an OWC mac array. It is your link to pin out. I need to use the green lead for a switch but don't know what pin to use for the black (I guess ground). I can't tell from the original PS b/c the wiring is slightly different. I'm not an EE type guy. Any suggestions would be much appreciated.

Normally, in order to switch a PSU on in order to test it, I connect the green with any other black wire (ground) and it works. the PSU Seventeam ST-220FUB-05E PS is a standard ATX PSU but is is also widely modified and used for other systems such as Netgear ReadyNAS Boxes. This often lead to confusion.

Power Supply Replacement | NETGEAR Communities

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VKGH
Tutor
Jan 25, 2017
The PSU for NV, NV+, NVX, 1100, 1200, 1500 has a special connector pinout. This PSU is available on ebay:
http://www.ebay.co.uk/itm/Readynas-NV-NV-NVX-1100-1200-1500-PSU-Replacement-for-ReadyNAS-ST-220FUB-/152363514480?hash=item237992ba70:g:rdwAAOSw-0xYgho~
- StephenB
  Guru - Experienced User
  Jan 25, 2017
  VKGH wrote:
  
  The PSU for NV, NV+, NVX, 1100, 1200, 1500 has a special connector pinout. This PSU is available on ebay:
  
  http://www.ebay.co.uk/itm/Readynas-NV-NV-NVX-1100-1200-1500-PSU-Replacement-for-ReadyNAS-ST-220FUB-/152363514480?hash=item237992ba70:g:rdwAAOSw-0xYgho~
  
  If you want to make the modification yourself (saving some money), the pin out is here: http://www.readynas.com/download/archive/pdf/ReadyNAS_PSU_pinout.pdf
  - DBeidle
    Initiate
    Jan 25, 2017
    Thank-you VKGH and StephenB for your replies.
    
    After much introspection and consulting with a hardware guy (I'm mostly a software guy administering his own servers and laptops), I decided to retire the ReadyNAS (it's been unused for quite awhile -- I was looking to repurpose it recently) and save my pennies for an up-to-date replacement. I could've probably done the modifications myself but I have higher priority (and less risky) items on my To-Do list. I've popped the drives to give to my hardware guy who has the equipment to verify that they're still good to use. The remander of the system will head to an electronics recycler.
    
    It was good while it lasted, and thanks again to those that responded,
    Dave

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Power Supply Replacement

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