ASRock B75M R2.0 manual ATX 12V Power Connector Please connect an ATX

ATX 12V Power Connector	Please connect an ATX 12V
(4-pin ATX12V1)	power supply to this connector.
(see p.13, No. 2)
Serial port Header	This COM1 header supports a
(9-pin COM1)	serial port module.
(see p.13, No. 25)

Chassis Intrusion Header

(2-pin CI1)	1
(see p.13, No. 27)		GND
	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.

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