Gigabyte GA-Z77-HD4 User Manual page 20

After installing the HDMI device, make sure to set the default sound playback device to HDMI.
(The item name may differ depending on your operating system. The screenshot below is from
Windows 7.)
USB 3.0/2.0 Port
The USB 3.0 port supports the USB 3.0 specification and is compatible to the USB 2.0/1.1 specification.
Use this port for USB devices such as a USB keyboard/mouse, USB printer, USB flash drive and etc.
RJ-45 LAN Port
The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following
describes the states of the LAN port LEDs.
Connection/
Connection/Speed LED:
Speed LED
Activity LED
LAN Port
Line In Jack (Blue)
The default line in jack. Use this audio jack for line in devices such as an optical drive, walkman, etc.
Line Out Jack (Green)
The default line out jack. Use this audio jack for a headphone or 2-channel speaker. This jack can be used
to connect front speakers in a 4/5.1/7.1-channel audio configuration.
Mic In Jack (Pink)
The default Mic in jack. Microphones must be connected to this jack.
To configure 7.1-channel audio, you have to use an HD front panel audio module and enable
the multi-channel audio feature through the audio driver. Refer to the instructions on setting up
a 2/4/5.1/7.1-channel audio configuration in Chapter 5, "Configuring 2/4/5.1/7.1-Channel Audio."
• When removing the cable connected to a back panel connector, first remove the cable from your
device and then remove it from the motherboard.
• When removing the cable, pull it straight out from the connector. Do not rock it side to side to prevent
an electrical short inside the cable connector.
Hardware Installation
In Windows 7, select Start>Control Panel>Hardware and
Sound>Sound>Playback, set Intel(R) Display Audio to the
default playback device.
State Description
Orange 1 Gbps data rate
Green 100 Mbps data rate
Off 10 Mbps data rate
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Activity LED:
State Description
Blinking Data transmission or receiving is occurring
Off No data transmission or receiving is occurring