Jpwr1~2: Atx Power Connectors; Jcom1: Serial Port Connector; Internal Connectors - MSI H81M-P33 Series User Manual

Internal Connectors

JPWR1~2: ATX Power Connectors

These connectors allow you to connect an ATX power supply. To connect the ATX
power supply, align the power supply cable with the connector and firmly press the
cable into the connector. If done correctly, the clip on the power cable should be
hooked on the motherboard's power connector.
Video Demonstration
Watch the video to learn how to install power supply connectors.
http://youtu.be/gkDYyR_83I4
JPWR1
Important
Make sure that all the power cables are securely connected to a proper ATX power
supply to ensure stable operation of the motherboard.

JCOM1: Serial Port Connector

This connector is a 16550A high speed communication port that sends/receives 16
bytes FIFOs. You can attach a serial device.
JPWR2
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