ASROCK Fatal1ty 990FX Professional Series User Manual page 36

ATX Power Connector
(24-pin ATXPWR1)
(see p.14 No. 11)
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
(8-pin ATX12V1)
(see p.14 No. 2)
Though this motherboard provides 8-pin ATX 12V power connector, it can still work
if you adopt a traditional 4-pin ATX 12V power supply. To use the 4-pin ATX power
supply, please plug your power supply along with Pin 1 and Pin 5.
IEEE 1394 Header
(9-pin FRONT_1394)
(see p.14 No. 33)
Serial port Header
(9-pin COM1)
(see p.14 No.30)
Please connect an ATX power
12 24
supply to this connector.
1 13
20-Pin ATX Power Supply Installation
5 1
Please connect an ATX 12V
power supply to this connector.
8 4
4-Pin ATX 12V Power Supply Installation
Besides one default IEEE 1394
port on the I/O panel, there is
one IEEE 1394 header
(FRONT_1394) on this
motherboard. This IEEE 1394
header can support one IEEE
1394 port.
This COM1 header supports a
serial port module.
36
24
12
13
1
5 1
8 4