Asrock A780FullHD user manual download (Page 29 of 61)

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Page 29 of 61
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ATX Power Connector
Please connect an ATX power
(24-pin ATXPWR1)
supply to this connector.
(see p.13
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.
3-Pin Fan Installation
Pin 1-3 Connected
ATX 12V Power Connector
Please note that it is necessary
(4-pin
ATX12V1)
to connect a power supply with
(see p.13
No. 2)
ATX 12V plug to this connector.
Failing to do so will cause power
up failure.
20-Pin ATX Power Supply Installation
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.
12
1
24
13
12
1
24
13
Serial port Header
This COM1 header supports a
(9-pin COM1)
serial port module.
(see p.13
No.32)
CCTS#1
DDSR#1
DDTR#1
RRXD1
DDCD#1
TTXD1
GND
RRTS#1
RRI#1
1
Sample
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