ASROCK H61M-HVGS User Manual page 23

The front panel design may differ by chassis. A front panel module mainly
consists of power switch, reset switch, power LED, hard drive activity LED,
speaker and etc. When connecting your chassis front panel module to this
header, make sure the wire assignments and the pin assign-ments are
matched correctly.
Chassis Speaker Header
(4-pin SPEAKER 1)
(see p.2 No. 13)
Chassis and Power Fan Connectors
(4-pin CHA_FAN1)
(see p.2 No. 9)
(3-pin PWR_FAN1)
(see p.2 No. 23)
CPU Fan Connectors
(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. 4)
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.
ASRock H61M-HVGS / H61M-HVS Motherboard
CHA_FAN_SPEED
+12V
FAN_SPEED_CONTROL
GND
4 3 2 1
GND
+12V
CPU_FAN_SPEED
FAN_SPEED_CONTROL
12 24
1 13
20-Pin ATX Power Supply Installation
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 the CPU fan
cable to the connector and
match the black wire to the
ground pin.
Pin 1-3 Connected
3-Pin Fan Installation
Please connect an ATX power
supply to this connector.
12
1
24
13
23