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Forum Discussion
ReadyNAS Business Pro Power Supply Replacement
Earlier this year my ReadyNAS got double booted in a very short period of time following a power outage that lasted longer than my backup. Afterwards it appeared the PS was dead. I did diligent research here and found a suggestion to buy a Kentec power supply. Although I should have read more, I assumed a PS reccomendation would be plug and play, although I saw some wiring changes would need to be made. I assumed the PS itself would bolt right in. Turns out the sizes are very different. I am writing this to get the word out in case others think they need to buy the Kentec.
I hadn't taken my PS out, so I read you could only get them in Europe for a higher price than the Kentec and would still have to get it shipped. Thinking the Kentec would bolt right in and I only needed to solder a couple wires, I ordered one. Unfortunately that was in June and now it is August and I am trying to put it in and finding the two boxes are totally different. Now that I had my PS out, a Seasonic SS-300SFD, I googled it, and sure enough, they are at Newegg and who knows where else... $39 and free shipping and the Kentec was $28. Is it worth dealing with an incompatible box to save $12...
Turns out that since I waited two months to install it, I can no longer return the Kentec. At this point I am debating having a new PS that is now a door stop, and spend the additional $39 to get the right PS.
I could no longer respond to the topics where this PS was suggested, so I am creating a new topic to raise the question of why someone would suggest a physically incompatible drive to save $12? I guess another option is to have the PS hang out the back somewhere....
As an aside, the Seasonic is 300W and the suggested replacement Kentec is 250W.
Please explain what I am not getting here and why this Kentec was suggested, and are people really using these as replacements?
Thanks!
11 Replies
I did more searching and found a prevous link where I brought up the PS issue: https://community.netgear.com/t5/ReadyNAS-Hardware-Compatibility/NVX-Business-Edition-RNDX4210-won-t-power-on/m-p/1313191#M16175
In that link it was suggested I buy the PS from Europe and the replacement on that link looks similar to the Kentek it was suggested I buy, but neither of those two supplies are similar to the one I took out, not would they fit in my case.
Seems there is some confusion here on what PS goes in what case, and that might be the source for the problem of getting the wrong PS suggested. I have a RNDP6350 Business Pro. It is a squarish PS with a fan covering most of one side which faces the back of the NAS and a modified AC connector to allow for a different switch mounting, with the PS's own switch left to ON. Here is a picture showing what I was told to buy and the one I took out for comparison. Having watched some videos and read more, it appears along the line the PS style was changed. Don't assume you are being told the right information for a replacement, pull it out and check and then compare it to what is being reccomended.
Anyone want to buy a new Kentek PS at a discount :(
The post you referenced is for replacing the supply in an NVX, a 4-bay legacy system. Your 6-bay Pro takes an entirely different form factor, wiring, and wattage.
You need an SFX form factor power supply with at least 300W. The Seasonic is recommended if you can get one (it is apparently hard to get in some European countries). You must not change the wiring as is listed for the 4-bay supply in the reference message, but you will need a 6-inch standard 24-pin ATX extension. You may want to transfer the 90° Molex connectors from the old supply to the new to reduce the wire length for those connections and make installation a little cleaner.
Happens the Seasonic SS-300SFD is readily available and I sure wish I had looked at what I had before ordering the wrong PS.
The new Seasonic PS, like you mentioned, has different wiring. I mistakenly bought a 20-pin power extension so I am considering just splicing in wire to extend the ATX connector.
The new PS has three drive power connectors. Two have the double 4-pin Molex with the smaller style 4-pin connector on the end, like for floppies. The third power cable has a pair of SATA power connectors instead. Assuming no wiring changes were done like with the other NAS, I think I can get from A to Z.
Thanks.
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