Asus Q87T/CSM User Guide - Page 22

Internal connectors

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1.7.2 Internal connectors 1. Serial port connector (10-1 pin COM) This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis. COM PIN 1 RXD DTR DSR CTS DCD TXD GND RTS RI Q87T Q87T Serial port connector The COM module is purchased separately. 2. CPU and chassis fan connectors (4-pin CPU_FAN, and 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. CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND Q87T CHA_FAN GND CHA FAN PWR CHA FAN IN CHA FAN PWM Q87T Fan connectors 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. 1-14 Chapter 1: Product introduction

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1-14
Chapter 1: Product introduction
1.7.2
Internal connectors
1.
Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.
The COM module is purchased separately.
Q87T
Q87T Serial port connector
PIN 1
COM
DCD
TXD
GND
RTS
RI
RXD
DTR
DSR
CTS
2.
CPU and chassis fan connectors (4-pin CPU_FAN, and 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.
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.
Q87T
Q87T Fan connectors
CHA_FAN
GND
CHA FAN PWR
CHA FAN IN
CHA FAN PWM
CPU_FAN
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND