ASRock FM2A55M-VG3 ATX Power Connector, Please connect an ATX power supply to this connector

ATX Power Connector	24	13
(24-pin ATXPWR1)
(see p.13 No. 3)	12	1

Please connect an ATX power supply to this connector.

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.

2413

20-Pin ATX Power Supply Installation

12 1

ATX 12V Power Connector	Please connect an ATX 12V
(4-pin ATX12V1)	power supply to this connector.
(see p.13 No. 1)

Chassis Intrusion Header

(2-pin CI1)	1
		GND
(see p.13, No. 22)	Signal

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.

27