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Forum Discussion
System: 3VSB voltage in enclosure Internal is out of spec
After upgrading to firmware 6.10.4 Hotfix 1 I am getting multiple warning showing up in the logs:
System: 3VSB voltage in enclosure Internal is out of spec. (2.96 V).
Not really sure if I should be concerned, beyond the fact the NAS has been working properly before and after the upgrade (providing I decided to do a factory reset after the upgrade) and that the item shows 2.96 V when I guess it is expecting 3V (which does not look too bad to me).
If this can be ignored or a false positrive. Is it a way to prevent the NAS from raising these warnings?
Regards
6 Replies
3VSB (3 Volts StandBy) is really 3.3V, so your 2.96V would be out of spec. That is, in turn, derived from the 5VSB from the power supply, which is a separate voltage that's on all the time unless the unit is unplugged or the rear switch is off, so it can be used to wake the NAS via the power button or WoL. It is often what fails on the power supply due to age, but is especially sensitive if the NAS has been allowed to get to warm when it's "off".
There was no change in the limits in the ULTRA6.conf file in any recent OS update. I don't have a log file for an Ultra6 running OS6, but boot_info.log in the logs .zip file contains the limits. In the log I have from OS4.2.31, it has this:
labelvol7: 3VSB minvol7: 3.07 maxvol7: 3.53
Since nobody else has reported a similar issue, then the only way I can see the update causing it is that it's now notifying you of something that it previously did not, so the problem has really been there longer.. Take a look at boot_info.log from your unit now and from some time before the OS update and see if the limits for that voltage changed. Note that I think the limits in OS6 are 3.135 to 3.465, not those listed above for OS4.2.31, but the important quiestion is whether or not they changed in the recent update you made.
Assuming the limits didn't change, the power cycle associated with the update may have been the cause. So, the next question is whether the voltage really is too low or if the components that measure it have degraded and it's a false alarm. And if it's really too low, is it the power supply or the components that produce 3.3V from the 5V? That's really hard to assess other than by swapping out the supply, but there are potential other signs.
Are you seeing any issue with powering on or off, or with the LAN connection? If so, it's really the voltage. But that still doesn't differentiate between the supply and down-converter. Since the supply is a common issue at this age of your unit, it's a good guess. If you have a standard ATX supply, you can use it externally just as a test before you buy a replacement supply.
Thank you for your advice.. will take a look at the logs.
Something I noticed is this.. after the upgrade I also noticed some issues with the filesystem. I was no longer able to install apps as they would not be shown in FrontView. That led me to do a Factory Reset.
After factory reset -as well immediately after rebooting from the OS update- I started to get these messages.
However, when the factory reset happened the number of messages sky rocketed... until... the initial sync was finished.
Apr 19, 2021 12:09:58 PM System: 3VSB voltage in enclosure Internal is out of spec. (2.96 V). Apr 19, 2021 12:00:48 PM System: A hotfix was applied to your system (6.10.4 Hotfix 1). Apr 19, 2021 11:59:47 AM System: ReadyNASOS background service started. Apr 19, 2021 11:59:47 AM Volume: Resyncing started for Volume data. Continues like this...
Apr 22, 2021 09:20:08 AM System: 3VSB voltage in enclosure Internal is out of spec. (2.96 V). Apr 22, 2021 09:17:04 AM System: 3VSB voltage in enclosure Internal is out of spec. (2.96 V). Apr 22, 2021 09:13:43 AM System: External storage device connected. Apr 22, 2021 12:00:37 AM Snapshot: Snapshot c_1619067623 was successfully created for share or LUN Movies. Apr 21, 2021 12:00:22 AM Snapshot: Snapshot c_1618981208 was successfully created for share or LUN Movies. Apr 20, 2021 12:10:35 PM System: Fan System in enclosure Internal speed is below threshold. (468 rpm). Apr 20, 2021 10:56:59 AM System: Communication with UPS 'ups' (Synology DS1819Plus) is OK. Apr 20, 2021 10:20:17 AM Share: Share istat was deleted. Apr 20, 2021 10:14:48 AM Share: Share Documents was deleted. Apr 20, 2021 04:50:13 AM Volume: Volume data is resynced. Apr 20, 2021 12:00:07 AM Snapshot: Snapshot c_1618894805 was successfully created for share or LUN Movies. Apr 20, 2021 12:00:07 AM Snapshot: Snapshot c_1618894805 was successfully created for share or LUN istat. Apr 20, 2021 12:00:07 AM Snapshot: Snapshot c_1618894805 was successfully created for share or LUN Documents. Apr 19, 2021 09:54:20 PM System: 3VSB voltage in enclosure Internal is out of spec. (2.96 V). As you may notice, the message stopped pretty much when the sync finished.. only to reapper a few minutes ago when I started to copy data back into the NAS.
For some reason this seems to be related also to disk activity.
BTW, what would be a good replacement PSU for this NAS?
ok.. looking at boot_info.log I am unable to locate any info for 3VSB:
labelvol0: VCOR minvol0: 0.00 maxvol0: 0.00 labelvol1: DDB18 minvol1: 1.70 maxvol1: 1.89 labelvol2: AVCC minvol2: 3.12 maxvol2: 3.47 labelvol3: VCC3 minvol3: 2.96 maxvol3: 3.63 labelvol4: VCC1_25 minvol4: 1.17 maxvol4: 1.32 labelvol5: VCC1_5 minvol5: 1.41 maxvol5: 1.58 labelvol6: VCC1_05 minvol6: 0.98 maxvol6: 1.10 labelvol7: 3VDUAL minvol7: 3.12 maxvol7: 3.47 labelvol8: VBAT minvol8: 2.96 maxvol8: 3.63 labelvol9: minvol9: 0.00 maxvol9: 0.00 labelfan0: SYS
So not sure what may be wrong.
It seems to be labeled 3VDUAL in your NAS. That's the lable used with my Pro2 running OS6.10.5 beta1, also, so I assume it's normal. Maybe somebody else with an Ultra6 running OS6 can confirm.
I did install lm-sensors on my Pro2, and the sensors command from it does report the voltage of 3VSB. So that label is used somewhere within the system.
# apt-get install lm-sensors # sensors coretemp-isa-0000 Adapter: ISA adapter CPU: +62.0°C (crit = +100.0°C) it8721-isa-0a10 Adapter: ISA adapter V5_0: +4.95 V (min = +4.70 V, max = +5.30 V) V3_3: +3.28 V (min = +3.14 V, max = +3.47 V) V+12: +11.82 V (min = +10.82 V, max = +13.18 V) 3VSB: +3.29 V (min = +3.14 V, max = +3.46 V) Vbat: +3.26 V System: 793 RPM (min = 399 RPM) System: +34.0°C (low = +1.0°C, high = +80.0°C) sensor = thermal diode
Since the NAS OS already uses libsensors directly, I didn't (and don't recommend you do) run sensors-detect, which might overwrite the existing configuration.
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