Laptop 12 “CPU fan not detected” warning on every boot

[codapi44]

Device Information

System Model or SKU

Please select one of the following

• Framework Laptop 12 (13th Gen Intel® Core™)
• Framework Laptop 13 (11th Gen Intel® Core™)
• Framework Laptop 13 (12th Gen Intel® Core™)
• Framework Laptop 13 (13th Gen Intel® Core™)
• Framework Laptop 13 (AMD Ryzen™ 7040 Series)
• Framework Laptop 13 (AMD Ryzen™ AI 300 Series)
• Framework Laptop 13 (Intel® Core™ Ultra Series 1)
• Framework Laptop 16 (AMD Ryzen™ 7040 Series)
• Framework Laptop 16 (AMD Ryzen™ AI 300 Series)
• Framework Desktop (AMD Ryzen™ AI 300 PRO Series)

BIOS VERSION

3.06

DIY Edition information

Memory: DDR5-5600 - 32GB (1 x 32GB)
Storage: WD_BLACK™ SN770M NVMe™ - M.2 2230 - 500GB

Standalone Operation

Are you running your mainboard as a standalone device. Is standalone mode enabled in the BIOS?

• Yes
• No

Describe the bug

On every boot, the firmware shows a warning that the CPU fan is not detected, but the fan always spins and works normally once the system has started.

Steps To Reproduce

Steps to reproduce the behavior:

1. Power off the laptop completely.
2. Power it on using the power button.
3. Observe that on every boot, the firmware displays a “CPU fan not detected” warning even though the fan is spinning and the system works normally.

Expected behavior

The laptop should boot without any “CPU fan not detected” warning when the fan is connected and working normally.

Screenshots

Operating System (please complete the following information):

• OS/Distribution: Ubuntu Studio
• Version: 25.10
• Linux Kernel Version: 6.17.0-8-generic

Additional context

Add any other context about the problem here.

[JohnAZoidberg]

Thanks for reporting! We have actually seen this issue internally and seen reports from other users. We have a fix that will go into the next release.