SUPER MICRO Computer H8DMT user manual NMI Button, Universal Serial Bus Ports, USB Headers

H8DMT/H8DMT-IBX/H8DMT-F/H8DMT-IBXF User’s Manual

NMI Button

The non-maskable interrupt button header is located on pins 19 and 20 of JF1. Refer to the table below for pin definitions.

Pin# Definition

19Control

20Ground

Universal Serial Bus Ports

Two Universal Serial Bus ports (USB 2.0) are located beside the LAN1/2 ports. Two additional ports (USB4/5) are included on the motherboard near the SIMSO slot. See the table below for pin definitions.

USB0		USB1
Pin#	Definition	Pin#	Definition
1	+5V	1	+5V
2	PO-	2	PO-
3	PO+	3	PO+
4	Ground	4	Ground

USB Headers

Two USB 2.0 headers (USB2/3) are also included on the motherboard. These may be connected to provide front side access. A USB cable (not included) is needed for the connection. See the table below for pin definitions.

USB2		USB3/4
Pin#	Definition	Pin#	Definition
1	+5V	1	+5V
2	PO-	2	PO-
3	PO+	3	PO+
4	Ground	4	Ground
5	Key	5	No connection

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