Pro2 OS6 v6.3.5 fan suddenly gone high speed

[davidr1]

Pro2 OS6 v6.3.5

It's been running like a dream - until a backup failed due to running out of disk space on the usb target.

Raidar 4.3.8 doesn't show fan speeds or temp - according to the interface the cpu is 71C and fan is 2606 rpm.

As I have backups of everything would it be best to re-install - via a factory reset?

If so, what is the best way to do this? Am I correct that the Pro2 would use the OS6 I installed using this link?

https://community.netgear.com/t5/ReadyNAS-in-Business/OS6-upgrade-question-on-legacy-Pro-6/m-p/97909...

Many thanks.

David

[Skywalker · Accepted solution]

Yes, on these CPUs, T-junction temps in the 70s are nothing to be worried about.  Atom CPU temps tend to ramp up very quickly when they're under load, but they're designed to handle that. 🙂

[davidr1]

apologies - cpu is 20C

[davidr1]

I might have 'panicked' prematurely.

Alerts came in during the backup:

CPU temperature exceeded safety threshold. (91 C).

In the last hour the fan has noise / speed has reduced considerably (graph below).

From my Pro2 (1TB disks):

From my Ultra (2TB disks):

Is there anything I should be concerned about with the CPU temp spike?

Many thanks,

David

[petermac]

I was running 6.2.4 on my Pro 6 and upgraded to 6.4 and now my fans run on startup but after a while they shutdown and the internal temp goes way up, it should be around 30C and it's up around 70C. I am thinking that upgrading the FW may not have been a good idea

[davidr1]

OS6 6.3.5

Yes, my Pro2 and Ultra2 are definitely running hot like yours though the fan speeds are very low:

and the Ultra2:

Any thoughts please?

David

[petermac]

Yeah those temps are way too hot. We need to change something that will kick the fan speeds up.

[davidr1]

The fans are rotating and the expelled air is about room temp only. I'm wondering if the sensors are working properly on the 6.3.5 for legacy?

Any gurus please?

[BrianL2]

Hi davidr1,

Kindly update the Firmware to 6.4.0 version and see if the fans will behave normally. If it won't it, kindly give me a copy of the device logs.

Hope this helps!

Kind regards,

BrianL
NETGEAR Community Team

[davidr1]

Hi BrianL,

Thanks for helping.

I backed up both Ultra and Pro. Temps still going up after upgrading to 6.4.0.

How do I attach zip files, please?

Many thanks, David

[davidr1]

Hi BrianL,

Logs sent Attn BrianL

[Skywalker]

Those CPUs are rated to operate up to 100C.  Even on 6.2.x, we never attempted to increase the fan speed until the CPU hit 80C.

[davidr1]

Hi Skywalker,

---

@Skywalker wrote:

Those CPUs are rated to operate up to 100C.  Even on 6.2.x, we never attempted to increase the fan speed until the CPU hit 80C.

---

Are you saying no harm is being done? I just don't want to harm two good units.

It seems most running OS6 6.35 / 6.4.0 on Ultra2 / Pro2 units run at ~35C.

I don't recall seeing temps under legacy 4.x so would not know if they are any different.

Please understand I just don't want to lose two good units. If these temps are nothing to be concerned about I'll sleep a lot better!

I appreciate your help,

David

[Skywalker · Accepted solution]

Yes, on these CPUs, T-junction temps in the 70s are nothing to be worried about.  Atom CPU temps tend to ramp up very quickly when they're under load, but they're designed to handle that. 🙂

[davidr1]

Thank you very much.

May I say the support on this forum is superb - thank you to everybody and Netgear.

David