Hopefully this is the right place to post this. I've had my Readynas Pro for about 7 years. Recently the power supply fan started to make funny noises and temperature was kind of high. Scheduled power down/ups failed so I always had the unit on. I cleaned up the unit and tried to replace the power supply fan only but the replacement fan was too slow and eventually just stopped.So I got a new power supply from Seasonic (SS-300SFD) + extension cables. I made some modifications to the cabling since they were too long and this worked out fine regarding the fan and now the scheduled power down/ups are working properly. However, the unit still gets pretty hot.I tried to replace the 120mm SYS fan with a Noctua NF-S12A FLX to see if heat issues would improve. This did not work. The NAS got really hot and hard drives started to shut down and got all kinds of messages from the NAS about heat issues, so I replaced the original 120mm fan back.I'm waiting for some crimps to improve the cabling and perhaps improve air flow. If I open the unit, the heat problem goes away. It seems the heat problem comes from the heat sink on the memory controller just below the CPU. I also noticed that my NAS uses the E2160.Would updating the CPU for an E5300 or any other compatible CPU reduce heat build up? Should I cut some holes on the side and add another fan?These are currently my NAS readings with the stock 120mm fan: Device Description Status Disk 1 WDC WD20EARX-00PASB0 1863 GB , 36 C / 96 F , Write-cache ON OK Disk 2 WDC WD20EARX-00PASB0 1863 GB , 35 C / 95 F , Write-cache ON OK Disk 3 WDC WD20EFRX-68AX9N0 1863 GB , 32 C / 89 F , Write-cache ON OK Disk 4 WDC WD20EFRX-68AX9N0 1863 GB , 34 C / 93 F , Write-cache ON OK Disk 5 WDC WD20EZRX-19D8PB0 1863 GB , 34 C / 93 F , Write-cache ON OK Disk 6 WDC WD20EARX-00PASB0 1863 GB , 33 C / 91 F , Write-cache ON OK Fan SYS 1854 RPM OK Fan CPU 1534 RPM OK Temp SYS 58 C / 136 F [Normal 0-65 C / 32-149 F] OK Temp CPU 37 C / 98 F [Normal 0-60 C / 32-140 F] OK UPS 1 APC Back-UPS ES 550, Battery charge: 100%, 19 minutes OKI'm still on 4.2.27. Thanks.

I'm not seeing anything unusual about these temps, why are you concerned?

Mainly concerned because I was more used to see the Fan SYS at around 700 to 800 RPM, and seeing drives south of 36 degrees. It may have been that the Seagates I had there before (and which died in ~3 years) where cooler. However, what got me concerned is that to reduce noise I tried the Noctua 120mm fan which seemed recommended around here and things got pretty bad with it.Any recommends to keep things a little cooler and running smoother would be greatly appreciated :-D

My 4TB WD (I guess yours have just half of the platters) are 36 degrees right now, and the SYS fan is 800rpm as you would expect. The fan will increase over 42 I reckon - my previous seagate's were constantly going over 42, triggering a high speed fan cycle to cool them down. The WD would never rise more than 36 (maybe 38 under load) so the fan never runs faster than 800. I have 18 degrees in my home right now though.Your SYS temp seems a little high, mine is 49 at the time being. CPU is also cooler, mine is 21. The unit is idle of course.Did you try to recalibrate the fan speed? What is your ambient temperature?

Yup. Recalibrated plenty of times. I'm almost sure it's not the drives or the CPU but the memory/raid(?) controller. The heatsink of those gets pretty hot.That's what I was thinking if maybe changing the CPU would ease things for those two or something.It could be something else... Any ideas? :(BTW, just removed the side cover (around the motherboard), and in 2 minutes things are looking like this: Device Description Status Disk 1 WDC WD20EARX-00PASB0 1863 GB , 34 C / 93 F , Write-cache ON OK Disk 2 WDC WD20EARX-00PASB0 1863 GB , 33 C / 91 F , Write-cache ON OK Disk 3 WDC WD20EFRX-68AX9N0 1863 GB , 31 C / 87 F , Write-cache ON OK Disk 4 WDC WD20EFRX-68AX9N0 1863 GB , 32 C / 89 F , Write-cache ON OK Disk 5 WDC WD20EZRX-19D8PB0 1863 GB , 32 C / 89 F , Write-cache ON OK Disk 6 WDC WD20EARX-00PASB0 1863 GB , 31 C / 87 F , Write-cache ON OK Fan SYS 1068 RPM OK Fan CPU 1548 RPM OK Temp SYS 58 C / 136 F [Normal 0-65 C / 32-149 F] OK Temp CPU 35.5 C / 95 F [Normal 0-60 C / 32-140 F] OK UPS 1 APC Back-UPS ES 550, Battery charge: 100%, 19 minutes OK... and from what I remember, will continue to drop.

OK, so its the fan speed.The pro uses software RAID. I've never really looked at the system board. Is it practical to replace the heatsink/reapply thermal paste?

Readynas Pro heat issues | NETGEAR Communities

47 Replies

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tony359
Apprentice
Jun 24, 2015
As far as my ambient temperature, I'm in Irvine CA which is not too bad.

Is that a state secret? I refuse to go on if you don't tell us your ambient temperature!! :D
ultrabike
Aspirant
Jun 24, 2015
Well, we are about 77 degrees right now, and about so this past week.

It's been a bit dry, but had some cloudy skies and reasonable nights. No need to turn on the AC as in the last few years. More rain than in the past few years as well. Unfortunately, the motto around here is that "brown is the new green" :?

https://www.irwd.com/liquid-news/the-go ... -use-by-25

Awesome.

Will let you guys know of my progress with this. Though it's still running hot, if anything I've learned a bit about how to maintain and clean my NAS :D.

ultrabike

Aspirant

Jun 25, 2015

Just changed the cpu to a E5300. Other than having a better processor not much difference:

Disk 1 WDC WD20EARX-00PASB0 1863 GB , 32 C / 89 F , Write-cache ON OK
Disk 2 WDC WD20EARX-00PASB0 1863 GB , 31 C / 87 F , Write-cache ON OK
Disk 3 WDC WD20EFRX-68AX9N0 1863 GB , 29 C / 84 F , Write-cache ON OK
Disk 4 WDC WD20EFRX-68AX9N0 1863 GB , 31 C / 87 F , Write-cache ON OK
Disk 5 WDC WD20EZRX-19D8PB0 1863 GB , 31 C / 87 F , Write-cache ON OK
Disk 6 WDC WD20EARX-00PASB0 1863 GB , 28 C / 82 F , Write-cache ON OK
Fan SYS 1520 RPM OK
Fan CPU 1520 RPM OK
Temp SYS 59 C / 138 F [Normal 0-65 C / 32-149 F] OK
Temp CPU 34 C / 93 F [Normal 0-60 C / 32-140 F] OK
UPS 1 APC Back-UPS ES 550, Battery charge: 100%, 19 minutes OK

Here is what SSH has to say about what's running on my NAS:

Last login: Wed Jun 24 19:49:31 2015 from 192.168.1.109
Last login: Wed Jun 24 19:51:57 2015 from 192.168.1.109 on pts/0
Linux READYNASPRO1 2.6.37.6.RNx86_64.2.4 #1 SMP Wed Aug 20 11:41:34 PDT 2014 x86                                                                                        _64 GNU/Linux
READYNASPRO1:~# top
top - 19:53:34 up 6 min,  1 user,  load average: 0.33, 0.55, 0.32
Mem:   1021064k total,   992632k used,    28432k free,   429592k buffers
Swap:  2096892k total,        0k used,  2096892k free,   144032k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 3306 root      20   0 26348 3224 2664 S    1  0.3   0:02.15 leafp2p
    1 root      20   0  2068  664  564 S    0  0.1   0:00.80 init
    2 root      20   0     0    0    0 S    0  0.0   0:00.00 kthreadd
    3 root      20   0     0    0    0 S    0  0.0   0:00.00 ksoftirqd/0
    6 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/0
    7 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/1
    8 root      20   0     0    0    0 S    0  0.0   0:00.00 kworker/1:0
    9 root      20   0     0    0    0 S    0  0.0   0:00.00 ksoftirqd/1
   10 root      20   0     0    0    0 S    0  0.0   0:00.03 kworker/0:1
   11 root       0 -20     0    0    0 S    0  0.0   0:00.00 khelper
  158 root      20   0     0    0    0 S    0  0.0   0:00.00 sync_supers
  160 root      20   0     0    0    0 S    0  0.0   0:00.00 bdi-default
  162 root       0 -20     0    0    0 S    0  0.0   0:00.00 kblockd
  163 root       0 -20     0    0    0 S    0  0.0   0:00.00 kacpid
  164 root       0 -20     0    0    0 S    0  0.0   0:00.00 kacpi_notify
  165 root       0 -20     0    0    0 S    0  0.0   0:00.00 kacpi_hotplug
  272 root      20   0     0    0    0 S    0  0.0   0:00.00 khubd
  279 root       0 -20     0    0    0 S    0  0.0   0:00.00 md
  380 root       0 -20     0    0    0 S    0  0.0   0:00.00 rpciod
  381 root      20   0     0    0    0 S    0  0.0   0:00.00 kworker/1:1
  407 root      20   0     0    0    0 S    0  0.0   0:00.01 kswapd0
  473 root      20   0     0    0    0 S    0  0.0   0:00.00 fsnotify_mark
  475 root       0 -20     0    0    0 S    0  0.0   0:00.00 aio
  491 root       0 -20     0    0    0 S    0  0.0   0:00.00 nfsiod
  507 root       0 -20     0    0    0 S    0  0.0   0:00.00 crypto
  524 root       0 -20     0    0    0 S    0  0.0   0:00.00 kthrotld
  569 root       0 -20     0    0    0 S    0  0.0   0:00.00 scsi_tgtd
  601 root      20   0     0    0    0 S    0  0.0   0:00.00 scsi_eh_0
  604 root      20   0     0    0    0 S    0  0.0   0:00.00 scsi_eh_1
  607 root      20   0     0    0    0 S    0  0.0   0:00.00 scsi_eh_2
  610 root      20   0     0    0    0 S    0  0.0   0:00.00 scsi_eh_3
  613 root      20   0     0    0    0 S    0  0.0   0:00.00 scsi_eh_4
  616 root      20   0     0    0    0 S    0  0.0   0:00.00 scsi_eh_5
  623 root      20   0     0    0    0 S    0  0.0   0:00.19 kworker/u:6
  624 root      20   0     0    0    0 S    0  0.0   0:00.00 kworker/u:7
  629 root       0 -20     0    0    0 S    0  0.0   0:00.00 bond0
  694 root       0 -20     0    0    0 S    0  0.0   0:00.00 kstriped
  697 root       0 -20     0    0    0 S    0  0.0   0:00.00 ksnapd
  698 root       0 -20     0    0    0 S    0  0.0   0:00.00 kondemand
  699 root       0 -20     0    0    0 S    0  0.0   0:00.00 kconservative
  702 root       0 -20     0    0    0 S    0  0.0   0:00.00 usbhid_resumer

Doesn't seem like much is running. Will test my luck with the rewiring and the new CPU fan.

tony359
Apprentice
Jun 26, 2015
Out of curiosity I stuck a cable tie in the SYS fan, stopping it completely.

The HDD's barely reached 40°C after 30 minutes. The box was idle though.

It's not hot here today, I have 19°C in my home right now. I still feel there is something very wrong with your setup :)
ultrabike
Aspirant
Jun 26, 2015
I have a feeling it's the CPU fan. It's supposed to be running at 1500 RPM or so, but that's not how it looks to me. My PSU fan died and scheduled power down/ups failed so it's possible the CPU fan is giving the ghost. The replacement solved those issues neatly.

Note I have 6 2T HDDs and perhaps not the coolest ones. Just noticed you have nice 4T HDDs. Kool!

I can tell you that if the SYS fan is stopped my NAS will not be happy.

The CPU fan replacement arives to day and so are the other tools. Will see how that goes. If that doesn't solve issues I guess I could try a factory reset or something like that... I can dig to see what motherboard I have as well. Again, more than likely it's the CPU fan.
tony359
Apprentice
Jun 26, 2015
yes, you have 6HHDs but they ARE the coolest, you have WDC Green's, I have RED's. RED's are GREEN's with a different FW. I have two extra platters. Sure, with 6HDDs it would get warmer sooner, but you said your HDDs would shut down in minutes and I barely reach 40°C in 30 minutes.

If the CPU fan was at fault, your CPU temperature would be higher. My CPU, if memory serves, is a low power one, the "notebook" version. My previous CPU was hotter if memory serves.
ultrabike
Aspirant
Jun 26, 2015
Yes. I have 2 Greens and 4 Reds.

I can try disabling the SYS fan and post results (a long with times) later. It took minutes for things to go down. And it wasn't the CPU that started giving the alarm, it was the SYS going over 65C.

You SYS temperature is nice betwen 42C with the SYS fan running, and 53C with the SYS fan disabled. Mine is 59C with the SYS fan going about 1500 to 1800 RPM. Lower than 1500 RPM the SYS temperature starts to climb rather rapidly. I've seen the my Pro turn on from cold and go up to about 62C in a few minutes, until the SYS fan ramps up and stabilizes the temperature to 59C.

I'm not certain about this, but the CPU fan may not just cool the CPU. It may suck air out of the side vent.

As far as the source of the heat for the SYS temperature, I can only point to the CPU and/or the heat sink below it. That gets hot, and I was thinking it's the CPU's fan work to cool those down.

My CPU is a used $4 E5300. Could get an E6600 used for like $4 and give that a try as well. The two processor specs are not that different from what I've seen though.
tony359
Apprentice
Jun 26, 2015
Right, then your HDD's were not shutting down, the box was shutting down because the SYS temperature was too high. You probably have a higher temperature than me in California (I'm in the UK) as a start. That is not something to be underestimated.
Then you have 6 HDD's. The CPU fan vents in the box itself. The SYS fan must be able to extract that air AND extract air from the HDD's. If your SYS fan is just enough to extract the CPU air, then no air will flow through the HDD's. Since the air coming from the CPU is forced in, it will be the first to get out via the SYS fan.
ultrabike
Aspirant
Jun 26, 2015
The box did not shut down, it just sent me e-mails about the temperature being abnormally high. But Disk 1 DID shut down. It gave me a scare since I thought I was going to have to replace the drive. I'm not making things up. I'll see if I can dig the e-mail notification which might have the temperatures. I deleted it from my main acount, but might have it in another one since my Pro sends notifcations to two e-mail accounts. Can't get to it right now from work though. Or maybe it's in the logs and if so I will post them.

Also, the SYS fan pulls significanlty more air from the HDD front vents that from the CPU side vent. At least acording to the palm of my hand feeling the air going through the chasis.
tony359
Apprentice
Jun 26, 2015
That puzzles me. The HDD shutting down I mean.

Anyway the SYS fan pulls air from two cavities: the HDD cage and the motherboard van. The Motherboard van has a fan in it which means that that air "gets out first" if you see what I mean. If the SYS fan is not powerful enough, the air coming from the motherboard van will get out first. If you had no CPU fan, then the SYS fan would pull air from both cavities. So yes, it could be that if the SYS fan has the same airflow of the CPU fan, the HDD's wouldn't get any airflow.

That being said, I barely reached 40°C with the SYS fan not working. I am still puzzled. Any chance your HDD's were doing a re-sync or a scrub when that happened?

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Readynas Pro heat issues

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