ADLINK NuPRO-E340 - Manual (Page 69)

BIOS Setup 55
NuPRO-E340
Fan Start PWM
Sets the PWM value of the fan between Fan Off Temperature
Limit and Fan Start Temperature Limit. Minimum value is 0
and maximum is 127.
PWMSlope Setting
The Slope PWM Value sets the rate of increase the fan speed
when the temperature is above Fan Start Temperature Limit.
System Status
System temperature, CPU temperature and fan speed (FAN1),
system voltages.