Atom E3940 THERMTRIP_N is asserted between -5 and 5 degrees centigrade.

[YWei]

We have a test which executed power-on and graceful shutdown on low temperature.
But a few of E3940 asserted THERMTRIP_N and shutdown during BIOS post.
We carefully checked whether the power button was pressed and SOC_PWROK was de-asserted unexpectedly.
Unfortunately they are very well.
What can we do for this issue?
Can we disable THERMTRIP_N during BIOS post and enable it on OS?

[CarlosAM_INTEL]

Hello, @YWei:

Thank you for contacting Intel Embedded Community.

You need to confirm that the affected designs fulfill the requirements stated in the Apollo Lake Platform Thermal Mechanical Design Guide [TMDG] document # 600976. You can find it when you are logged into your Resource and Design Center (RDC) privileged account on the following website:

https://cdrdv2.intel.com/v1/dl/getContent/600976

You should fill out the form stated on the following website when you have problems with the provided website or want to update your RDC account:

https://www.intel.com/content/www/us/en/forms/support/my-intel-sign-on-support.html

Best regards,

@CarlosAM_INTEL.