ASROCK N68-S User Manual page 21

ATX 12V Power Connector
(4-pin ATX12V1)
(see p.10 No. 25)
Please note that it is necessary
to connect a power supply with
ATX 12V plug to this connector.
Failing to do so will cause power
up failure.
2 1 2 1 2 1 2 1 2 1