User Manual

2-11
Chapter 2: Motherboard information
2.6.2 Internal connectors
1. ATX Power connector (4-pin ATX12V)
Correctly orient the ATX power supply plug into this connector and push
down rmly until the connector completely ts.
J3455T-IM-A
PIN 1
ATX12V
+12V_CPU
+12V_CPU
GND
GND
CAUTION: Do not forget to connect the fan cables to the fan headers.
Insufcient air flow inside the system may damage the motherboard
components. These are not jumpers! Do not place jumper caps on the fan
headers!
2. CPU and Chassis Fan headers (4-pin CPU_FAN, 4-pin CHA_FAN)
Connect the fan cables to the fan headers on the motherboard, ensuring that
the black wire of each cable matches the ground pin of the header.
J3455T-IM-A
A
A
B
CPU_FAN
O_CPUFAN_PWM_Q
O_CPUFANIN_R
12V
GND
B
CHA_FAN
O_CHAFAN_PWM_Q
O_CHAFANIN_R
12V
GND
Connector type
WAFER HD 4p, 2.54mm pitch, S/T