ASRock manual Input/Output Header, For E3C224-4L Only

Serial General Purpose	SCLOCK
Input/Output Header	SLOAD
	GND
(SATA_SGPIO1)	1
(SATA_SGPIO2)	SDATAOUT
(see p.18, 21, 24)
	GND

This header supports Serial Link interface for onboard SATA connections.

PSU SMBus

(PSUSMB1) (see p.18, 21, 24)

GND

SMBDATA

1

+3VSB SMBCLK

ALERT

PSU SMBus monitors the status of the power supply, fan and system temperature.

Non Maskable Interrupt	GND
Button Header	1
	CONTROL

(NMI_BTN1) (see p.18, 21, 24)

Please connect a NMI de- vice to this header.

(For E3C224-4L Only)

Front Lan LED

Connector

(FRONT_LED_LAN34) (see p.18, 21)

LAN4_LINK LED_PWR

1

LAN3_LINK LED_PWR

This 4-pin connector is used for the front LAN status indicator.

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