ASRock E35LM1 R2.0 manual Serial port Header

Though this motherboard provides 24-pin ATX power connector,	12		24
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.
20-Pin ATX Power Supply Installation	1	13

Serial port Header	This COM1 header supports a
(9-pin COM1)	serial port module.
(see p.12 No. 22)

Chassis Intrusion Header

(2-pin CI1)	1
		GND
(see p.12 No. 14)	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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