Loud fan noise after upgrade to 24.04.2

TrueNAS General
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1

Hi everyone,

I need your help.

I have a small mini-PC:

GEEKOM A5 AMD Ryzen 7, 32GB RAM:

  • one 2TB SSD (Crucial P3 Plus M.2)
  • one 2TB Samsung 870 QVO SATA III
  • one 512GB NVME M.2 SSD (for the bootpool, usb-attached)

On TrueNAS-SCALE 23 everything was fine, fan-wise. I never heard it, it only went on occasionally. Now that I’ve installed Dragonfish-24.04.2 it’s on constantly and it starts howling every five minutes.

I turned off ALL apps to test whether it’s an app that is causing this, but it’s the same.

Avg CPU Usage seems ok, between 1-4% never goes over 10. The temperature is around 70 Celsius.

What can I do to get to the bottom of this (I’m a newbie as you have probably noticed)?

Thanks,
Eddie

2

Same here. Temps have shot up to 100c, and my fan runs like crazy. It’s a small form factor PC, so not a whole lot of room for cooling. It was cool and quiet before, now it’s running the CPU right at max. And that’s a 14th gen I7, so I’m extra worried.

3

Check the temps of your SSDs too using smartctl -a, or maybe sensors

There should be some entries for Temperature_Sensor or the like.

Maybe the board is detecting a hot chipset or hot SSD.

Determine what is hot… if that is the issue, then take it from there.

4

Have you ever found a solution to this problem?

5

I’m back after a hiatus, I setup and installed a fresh copy of TrueNAS 24.10 “Electric Eel” and noticed significant fan “loudness” compared to my other box running Ubuntu 24.04. I swapped the drives and the “loudness” transferred along with it.
I realize this might not be enough evidence to suggest a underling issue to some but the two boxes are identical in every way other than HD size and type, which shouldn’t make a difference.

6

Hi tux-box,

What does your motherboard bios have fans set to? Also do you have any PWM controllers in use?

In terms of the difference between the two, is there a obvious difference in resources getting used? If you’re using more L2ARC on the truenas compared to your ubuntu system, it might be using more CPU.

To my knowledge, no native way to control the fans from within TrueNas, but you can probably script it, but that’s up to you, did see this github link for someone doing similar, but use at own risk TrueNAS-Scripts/FanControl.tool at master · dak180/TrueNAS-Scripts · GitHub

7

Thanks for the reply.
I have the configuration of the systems set to “os control”
PWM, for what it’s worth these are r730xd’s I don’t have a lot of control over the PWM feature set outside of IDRAC. I can set “minimums” but not force a max without as you posted “scripts” or “hackary”.

My reply was in attempt to add more information to the issue posted.

thank you again for your reply.

Post edit:

I meant to add: as far as work load I specifically disabled all work loads for the test.
on one box I used a “live CD” and the other it was just the base install, no frills no config change.

Thanks.

8

Here’s how I solved my own problem:

  1. BIOS update
  2. Update to 24.10

These two steps reduced the CPU temperature to around 48 degrees and therefore the fan noise problem.