Asus RS100-E5-PI2 - Manual (Page 52)

4-6 Chapter 4: Motherboard Information
4. Fan mode setting (3-pin CPUFAN_SET1; CHAFAN_SET1)
These jumpers allow you to connect either a 3-pin or a 4-pin fan cable plug
to the CPU fan or Chasis fan connectors Set these jumpers to pins 1-2 Short
PWM mode if you are using a 4-pin fan cable plug, or to pins 2-3 Short DC
mode if you are using a 3-pin plug.
P5BV-M/RS100-E5
Fan Mode Setting
®
P5BV-M/RS100-E5
1 2
1 2
CPUFAN_SET1
(Default)
PWM Mode DC Mode
2 3
CHAFAN_SET1
(Default)
PWM Mode DC Mode
2 3