A Service Action notice has been posted in the Announcement forum to prevent ReadyNAS NV and NV+ systems from premature power supply failures at viewtopic.php?t=10259. If you own a NV or NV+ within the serial number range in the notice, please either download and install the add-on or perform the simple fan reversal procedure. We've seen a small percentage of our customers experiencing power supply failure and we want to avoid any downtime you may encounter due to an unnecessary RMA process.

If we don't care about the unit noise, is there a preferred solution between the fan reversal and the add on?

ggemelos wrote:If we don't care about the unit noise, is there a preferred solution between the fan reversal and the add on?We find the fan reversal solution to provide better cooling for the PSU. If you are adept at doing the fan reversal procedure, I would recommend that.

I checked and my serial number does not appear to be in the range. I did, however, recently replace my NV power supply with the fanless one.A few questions...Do I need to do anything?Can the power supply temperature be checked via FrontView?If the fan is reversed, won't it then be drawing dust directly in through the back, blowing it across the drives, and then depositing it on the back of the dust screen on the front grille?I was going to open a support ticket but never received the registration confirmation e-mail (tried two e-mail addresses). Thanks.

SJMarty wrote:I checked and my serial number does not appear to be in the range. I did, however, recently replace my NV power supply with the fanless one.A few questions...Do I need to do anything?Yes, since you've replaced with a fanless PSU, you should either install the add-on or reverse the fan.Can the power supply temperature be checked via FrontView?Unfortunately we don't have a sensor there.If the fan is reversed, won't it then be drawing dust directly in through the back, blowing it across the drives, and then depositing it on the back of the dust screen on the front grille?It's possible the dust may collect on the dust screen in the front and you would have to regularly vaccuum it or use an air spray occasionally to clear it -- similar to what you would do to the outside of the mesh when the fan pulling the air into the system. What you can do to avoid this is to remove the dust screen. Just open the door, use a needle or a tweezer to get ahold of the mesh and pull out carefully. This actually helps in lowering the disk temperature more, allowing the fan to operate at lower RPM longer before needing to kick it up due to heat.

After installing via local update and rebooting, I received this message in a pop-up window when I accessed via FrontView...This add-on (Enhance_NV_Thermal_Characteristics) does not apply to this system. [Thu Apr 19 21:25:53 EDT 2007]

Service Action to Prevent PSU Failures in ReadyNAS NV/NV+

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bullfrog1
Tutor
Jul 20, 2013
Hi

I too had a PSU failure with a NV+, which I replaced with an alternative, some time ago. However rather than modifying the PSU's pinout itself, I purchased an ATX extension cable ( Male to Female) and modified the pinout on that. This had the advantage that any future failures I can simply swap the PSU for another without worrying about pinouts. It also extends the replacement PSUs power cable overcoming the requirement for it to sit outside the box.

The PSU i used was a Seasonic 250W 1U server rack PSU cost me £25 (uk) on ebay.

Hope that helps someone.

Bullfrog
SuperRoach
Aspirant
Nov 29, 2014
NV+ In service range here. I had it blow up (the psu) earlier this week. I thought why not, and tried an email RMA Wednesday night. Thursday morning, a call from USA asking for my address, telling me they'll ship it.

Thursday, It arrives in the mail, a replacement PSU! (Australia). Very impressive service from them :)

Swapped it over today and am continuing to transfer the data from it.
eteng65
Aspirant
Dec 11, 2014
You have received it? Can you provide me with more information about it？？
StephenB
Guru - Experienced User
Dec 11, 2014
eteng65 wrote:
You have received it? Can you provide me with more information about it？？
http://www.readynas.com/forum/viewtopic.php?t=10259
luya0611
Aspirant
Jan 04, 2015
Super,merci beaucoup pour les infos,et je vais aller ce site
darkfader
Aspirant
Feb 07, 2015
My NV+ somewhat died. After some moments after "booting..." it says poof and all lights go out (I guess the fuse doesn't activate). I didn't see anything wrong with the PSU at first. I has been running 24/7 for 4 years but had to replace the fusebox lately. The outlet isn't grounded but shouldn't be a problem, right?
edit: I located where it sparked. It went via the FETs and heatsink to the casing. I ordered a a new PSU. I don't think I have a 4pin minifit connector left to solder though, so I wouldn't have to swap the -5/-12 wires for the +12. edit2: I acquired a connector but then found out the fan is in the way xD. edit3: hacked a hole for the little PSU fan and now running again. I somehow managed to put unused wiring away in empty spaces.

Forum Discussion

Service Action to Prevent PSU Failures in ReadyNAS NV/NV+

346 Replies

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