Bug ID 647151: CPU overtemp condition threshold is 75C

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP TMOS(all modules)

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:

Opened: Feb 23, 2017
Severity: 3-Major


A CPU overtemp condition is logged when a B4450 CPU reaches 75C.


Since the temperature threshold is set too low, the warning does not indicate an actual problem.


CPU temperature is only 75C and ambient temperature in the blade is in the normal range.



Fix Information

The fix raises the CPU overtemp threshold to 88C for B4450. With the fix, the warning should be considered valid.

Behavior Change