Abit SG-71 User Manual page 43

Installing the Motherboard
(9). COM2 Header: COM2 Serial Port Header
Note: Watch the pin position and the orientation
(10). SPEAKER1 Header: Chassis Speaker Header
Note: Watch the pin position and the orientation
This header is for connecting the additional COM2
port plugs. This connector can provide one
additional COM port plug. You can use the special
COM port expansion cable to connect it (the cable
come with the metal plate can fixed on the back
panel of computer chassis).
Attach the cable from the system speaker to this
header.
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User's Manual