Asus M3A78-EM Computer Hardware User Manual


 
ASUS M3A78-EM 1-33
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
6. USB connectors (10-1 pin USB78, USB910, USB1112)
These connectors are for USB 2.0 ports. Connect the USB module cable
to any of these connectors, then install the module to a slot opening at the
back of the system chassis. These USB connectors comply with USB 2.0
specication that supports up to 480 Mbps connection speed.
The USB 2.0 module is purchased separately.
7. Optical drive audio in connector (4-pin CD)
This connector allows you to receive stereo audio input from sound sources
such as a CD-ROM, TV tuner, or MPEG card.
M3A78-EM USB 2.0 Connectors
R
M3A78-EM
USB78
USB+5V
USB_P8-
USB_P8+
GND
NC
USB+5V
USB_P7-
USB_P7+
GND
1
USB910
USB+5V
USB_P10-
USB_P10+
GND
NC
USB+5V
USB_P9-
USB_P9+
GND
1
USB1112
USB+5V
USB_P12-
USB_P12+
GND
NC
USB+5V
USB_P11-
USB_P11+
GND
1
M3A78-EM
Internal Audio Connector
R
M3A78-EM
CD
(black)
RightAudio Channel
LeftAudio Channel
Ground
Ground