iMX6 SOLO temperature throttling

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iMX6 SOLO temperature throttling

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PiVo
Contributor II

Hello,

We have several unit with iMX6 SOLO processors and we see different behavior on high temperatures:

- One unit crashes with die-temperature of ~85C

- Other units continue working on this temperature but scale down  gpu3d clock

Chip revisions are the same revision, 1.3.

To be sure, we re-calibrated memory of the first unit, but the unit still crashes.

Any idea what can cause this difference?

Best regards, Pieter

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b36401
NXP Employee
NXP Employee

i.MX6 processors have temperature monitor that protects the processors from overheating.
Please refer chapter 26 "Thermal Driver" of i.MX 6 Linux Reference Manual for the details.

However accuracy of temperature sensor is very poor. So I suggest to set it a bit lower for monitor to slow the processor earlier.

Also as common suggestion I can suggest to attach a radiator to the processor.

Have a great day,
Victor

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