Jetson nano Fan does not work

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin Nano
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1

I bought the Jetson Orin Nano Developer Kit and followed the guides to install on a NVME. Now I noticed the device having an issue with the fan not spinning. It twitches like the fan wants to start spinning but it does not move at all. Please advise as I just bought the board.

3

Hi,

Could you use jtop to check weather the fan works normally?

Thanks

4

image
image1897×1029 156 KB

5

Hi,

Please share the result of the following command on your device.

$ cat /etc/nv_boot_control.conf
$ systemctl status nvfancontrol

Also, try manually adjust fan pwm

$ systemctl stop nvfancontrol
$ sudo su
# echo 255 > /sys/devices/platform/pwm-fan/hwmon/hwmon2/pwm1

Thanks

6

Here are my results,

image
image769×437 56 KB

image

7

Hi,

It seems like the pwm1 back to 0.
Could you make sure the nvfancontrol stop and redo the echo 255?

Thanks

8

I stopped the service in the First screenshot.

image
image1254×762 15.2 KB

As you can see from the message the fan is faulty. Can you please tell me the process to have this returned. It is very clear the fan is broken and not working as it should be.

9

Hi,

Seems like get the permission denied error.
Do you do sudo su before adjust the pwm value?

sudo systemctl stop nvfancontrol
sudo systemctl status nvfancontrol
sudo su
echo 255 > /sys/devices/platform/pwm-fan/hwmon/hwmon0/pwm1

Thanks

10

image
image1101×733 7.1 KB

No change It still returns to zero. Fan still does not move at all even if you try any other number.

11

Hi,

Got it.
Need your help to do following steps to confirm a fan problem.

  • Reboot the system
  • Execute sudo jetson_clocks
  • Attach a dmesg log for us to review.

Thanks

12

dlog.txt (60.5 KB)
Dmesg log as requested.

13

Hi,

Thank you for your assistance.
Seems that in latest JP stop nvfancontrol is not enough to control the fan in userspace.
Please follow the below steps and reply results.

Thanks

14 
thermal_zone0/type:cpu-thermal
thermal_zone1/type:gpu-thermal
thermal_zone2/type:cv0-thermal
thermal_zone3/type:cv1-thermal
thermal_zone4/type:cv2-thermal
thermal_zone5/type:soc0-thermal
thermal_zone6/type:soc1-thermal
thermal_zone7/type:soc2-thermal
thermal_zone8/type:tj-thermal

root@drone-jetson:/sys/class/thermal# echo 255 > /sys/devices/platform/pwm-fan/hwmon/hwmon0/pwm1
root@drone-jetson:/sys/class/thermal# cat /sys/devices/platform/pwm-fan/hwmon/hwmon0/pwm1
0
root@drone-jetson:/sys/class/thermal#

So at this point can you tell me the RMA process?

15

Hi,

Thank you for your reply.

Please do the RMA process.

Thanks

17

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