System Panel Header
(9-pin PANEL1)
(see p.2 No. 21)
Chassis Speaker Header
(4-pin SPEAKER 1)
(see p.2 No. 20)
Chassis and Power Fan Connectors
(3-pin CHA_FAN1)
(see p.2 No. 10)
(3-pin PWR_FAN1)
(see p.2 No. 32)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.2 No. 3)
Though this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin
CPU fan still can work successfully even without the fan speed control function.
If you plan to connect the 3-Pin CPU fan to the CPU fan connector on this
motherboard, please connect it to Pin 1-3.
ATX Power Connector
(24-pin ATXPWR1)
(see p.2, No. 7)
Though this motherboard provides 24-pin ATX power connector,
it can still work if you adopt a traditional 20-pin ATX power supply.
To use the 20-pin ATX power supply, please plug your
power supply along with Pin 1 and Pin 13.
This header accommodates
several system front panel
functions.
Please connect the chassis
speaker to this header.
Please connect the fan cables
to the fan connectors and
match the black wire to the
ground pin.
Please connect a CPU fan cable
to this connector and match
the black wire to the ground pin.
1 2 3 4
Pin 1-3 Connected
12
24
Please connect an ATX power
supply to this connector.
1
13
20-Pin ATX Power Supply Installation
ASRock H55DE3 Motherboard
3-Pin Fan Installation
12
24
1
13
2 5
2 5
2 5
2 5
2 5