NAME

amdnbtemp — AMD northbridge temperature sensor driver

SYNOPSIS

/dev/sensors/temperature/cpu/*

DESCRIPTION

The amdnbtemp driver provides the system the ability to read the temperature sensor found in several AMD processors. This includes the K10 microarchitecture, and its derivatives, as well as the Bulldozer microarchitecture. The following AMD processors are supported:

• AMD Family 10h Processors (K10)
• AMD Family 11h Processors (Turion X2 Ultra)
• AMD Family 12h Processors (Llano APUs)
• AMD Family 14h Processors (Bobcat)
• Family 15h models 0-fh, 10h-1fh, 30-3fh (Bulldozer and Piledriver)
• AMD Family 16h Processors (Puma and Jaguar)

Some AMD Family 10h processors that utilize socket F and socket AM2 are subject to erratum 319 which indicates that the temperature sensor has an inaccurate measurement. If such a processor is detected, the system does not attach a temperature sensor to the device.

AMD Family 15h models 60-7fh (Steamroller and Excavator) are not supported at this time.

For AMD Family 17h (Zen) processors, the smntemp(4D) driver provides access to the temperature sensors.

SEE ALSO

smntemp(4D), fmadm(8)

AMD, BIOS and Kernel Developer’s Guide (BKDG) for AMD Family 16h Models 00h-0Fh Processors, 49125.

AMD, Revision Guide for AMD Family 10h Processors, 41322.