11 . CPU and chassis fan connectors (3-pin CPU_FAN, 3-pin CHA_FAN)

The fan connectors support cooling fans of 350 mA ~ 2000 mA (24 W max.) or a total of 1 A ~ 3.48 A (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. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors!

N4L-VM DH

CPU_FAN

GND +12V Rotation

CHA_FAN

Rotation

+12V

GND

N4L-VM DH Fan connectors

12 . Chassis intrusion connector (4-1 pin CHASSIS)

This connector is for a chassis-mounted intrusion detection sensor or switch. Connect one end of the chassis intrusion sensor or switch cable to this connector. The chassis intrusion sensor or switch sends a high-level signal to this connector when a chassis component is removed or replaced. The signal is then generated as a chassis intrusion event.

By default, the pins labeled ÒChassis SignalÓ and ÒGroundÓ are shorted with a jumper cap. Remove the jumper caps only when you intend to use the chassis intrusion detection feature.

N4L-VM DH

+5VSB MB

Chassis Signal GND

CHASSIS

(Default)

N4L-VM DH Chassis intrusion connector

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Chapter 2: Hardware information