ASROCK A75M-DGS Quick Installation Manual page 13

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.
ATX 12V Power Connector
(4-pin ATX12V1)
(see p.2, No. 1)
Serial port Header
(9-pin COM1)
(see p.2 No.21)
ASRock A75M-DGS Motherboard
Please connect an ATX power
12 24
supply to this connector.
1 13
20-Pin ATX Power Supply Installation
Please connect an ATX 12V
power supply to this connector.
This COM1 header supports a
serial port module.
24
12
13
1
13