Aaeon EMB-Q87B Manual page 25

4. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN)
Connect the fan cables to the fan connectors on the motherboard, ensuring
that the black wire of each cable matches the ground pin of the connector.
EMB-Q87B Fan connectors
CAUTION: 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!
NOTE: The CPU_FAN connector supports a CPU fan of maximum 2A (24 W)
fan power.
5. Serial port connectors (10-1 pin COM1, COM2)
These connectors are for serial (COM) ports. Connect the serial port cables
to these connectors, then install the module to a slot opening at the back of
the system chassis.
EMB-Q87B Serial port connectors
NOTE: The serial port cables are purchased separately.
Chapter 2: Motherboard information
CHA_FAN
PIN 1
PWM
SENSE
VCC
GND
CPU_FAN
GND
VCC
SENSE
PWM
PIN 1
COM2
PIN 1
COM1
PIN 1
2-17