ASROCK FM2A55M-VG3 User Manual page 27

ATX Power Connector
(24-pin ATXPWR1)
(see p.13 No. 3)
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.13 No. 1)
Chassis Intrusion Header
(2-pin CI1)
(see p.13, No. 22)
24 13
12 1
20-Pin ATX Power Supply Installation
1
GND
Signal
27
Please connect an ATX power
supply to this connector.
24
12
Please connect an ATX 12V
power supply to this connector.
This motherboard supports
CASE OPEN detection feature
that detects if the chassis cover
has been removed. This feature
requires a chassis with chassis
intrusion detection design.
13
1