Asus TS100-E5/PI4 - Manual (Page 46)

Chapter 3: Motherboard information 3-6
4. Fan mode setting (3–pin CPUFAN_SET1 and 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.
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P5BV-C/4L/TS100-E5
P5BV-C/4L/TS100-E5 Fan Mode Setting
1 2
1 2
CPUFAN_SET1
(Default)
PWM Mode DC Mode
2 3
CHAFAN_SET1
PWM Mode
(Default)
DC Mode
2 3