Asus M2N4-SLI - Manual (Page 46)

2-26 Chapter 2: Hardware information
4. CPU, Chassis, and Power fan connectors
(3-pin CPU_FAN, 3-pin PWR_FAN, 3-pin CHA_FAN)
The fan connectors support cooling fans of 350mA~2000mA (24
W max.) or a total of 1A~3.48A (41.76 W max.) at +12V. Connect
the fan cables to the fan connectors on the motherboard, making
sure that the black wire of each cable matches the ground pin of the
connector.
• Do not forget to connect the fan cables to the fan connectors. Lack
of sufficient air flow inside the system may damage the motherboard
components. These are not jumpers! DO NOT place jumper caps on
the fan connectors!
• The ASUS Q-Fan function is supported using the CPU Fan (CPU_FAN)
and Chassis Fan (CHA_FAN) connectors only.
R
M2N4-SLI
M2N4-SLI Fan Connectors
GND CPU F
AN PWR
CPU F
AN IN
CPU F
AN PWM
CPU_FAN
CHA_FAN
GND
Rotation
+12V
PWR_FAN
GND
Rotation
+12V