TerraMaster Forum

I have a brand new F5-422, which has been running for less than 48 hours.
There is currently very little activity on the NAS as I have not started migrating data on to it yet

The fans do not seem to start up as I would expect...
Device Temp = 69 C / 156 F
CPU Temp = 39 C / 102 F
Disk Temp = 51 C / 124 F

I changed the Fan mode from Smart to Medium and they ran for about a minute and stopped.
I have tried switching to other modes but seems to have no effect.
I've tried restarting the NAS but again, no effect.

I have 5 brand new WD Red Plus in the unit and very worried that they will overheat soon.\

Noise is not a problem for me. How can I make the fans run all the time?

To experiment and see if this is a software fault, I deleted the whole Volume and deleted the Storage Pool.
I then reset to factory settings.

Then I started over from the beginning, but manually installed TOS 4.2.40 instead of default latest TOS 5.

I have set the Fan Mode to Full Speed and so far so good. The fans are spinning as expected.
Disk Temperature is reported holding steady at 40~45 C

As I have just recreated everything from scratch the Volume is synchronising (ETA 16 hours).
I hope the Fans will be 24/7 and not just while the NAS is busy synchronising.
Will continue to monitor and update here.

The end result is the same.

While the Volume was synchronising the fans were running and the drive temperatures were holding steady. But after synchonisation was complete the fans turned off.

In an idle state the drive temperatures were slowly creeping up but still the fans did not start. Changing the fan mode had no effect. When the drives passed 50C I shut the system down.

While the Volume was synchronising and the fans were running I watched the reported fan speed closely. They seemed to be running at a asteady speed, yet the reported speed in the GUI was fluctuating continuously. Sometimes reporting 10 RPM, sometimes in the 1000s and sometimes in the 10,000s. Is this normal? It does not look right to me.

Heat is my biggest concern after some bad experiences in the past.

Can Support please tell me how to programatically control the fan speed by myself?
I want to run the fans full speed, all the time.

Such an issue never been reported in TOS 4.x, you can email our tech team and ask for a remote session, or update your version to TOS 5.

If your drives are not busy, they should not come up to 50 degrees, instead, they will fall into sleep. May I know what kind of drive you installed? Would you show some screenshots about the drives and temperature?

The only possibility is that the system gets the wrong hard disk temperature. So please provide some screenshots as I request in the last thread.

Sure, will wait for your further input.

Here are some screenshots while TOS 5 is building my array... Fan settings: Current activity - synchronising the volume: Overview Page. The fan only started when the cpu hit 40C. Devce temperature is up to 53C. is that normal? Disks are running cool right now In around 12~18 hours from now I will post the status after volume built ans NAS is idle. Thank you