The operating temperature of an AMD system or processor is highly dependent
on the characteristics of the system as a whole and the combination of
components that make up the system.
Consequently, the "normal" operating temperature will vary from system to
system, depending on each system's make-up. Some of the variables that affect
the operating temperature of a system are: case size, air flow
characteristics, installed components, processor speed, processor
heatsink/fan solution, thermal interface material, power supply, voltage
settings, workload, and ambient air temperature.
An approximation to the typical reading from a BIOS or an external software
utility is expected to be around 60ºC-65ºC or lower.
Although "normal" operating temperatures are not specified for AMD
processors, there are maximum operating temperature ratings that must not be
exceeded.
The maximum operating temperature of an AMD processor is determined by the
processor's Ordering Part Number (OPN). The OPN is located on the top of the
processor.
Example: A X1800 D M S 3 C
The temperature is indicated by the third character from the right in the
OPN and is denoted by an S, T or V character.
Current data for the AMD AthlonTM XP processor identifies the maximum
operating temperature as: V=85ºC, T= 90ºC, S = 95ºC.