Gigabyte GA-B75N - Page 19 Content; Front Panel Audio and USB 3.0 Headers

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9) F_AUDIO(FrontPanelAudioHeader)
 ThefrontpanelaudioheadersupportsIntelHighDenitionaudio(HD)andAC'97audio.Youmayconnect
your chassis front panel audio module to this header. Make sure the wire assignments of the module
connector match the pin assignments of the motherboard header. Incorrect connection between the module
connector and the motherboard header will make the device unable to work or even damage it.
• The front panel audio header supports HD audio by default.
• Audio signals will be present on both of the front and back panel audio connections simultaneously.
• Some chassis provide a front panel audio module that has separated connectors on each wire
instead of a single plug. For information about connecting the front panel audio module that has
different wire assignments, please contact the chassis manufacturer.
1
2
9
10
For AC'97 Front Panel Audio:
Pin No. Denition
1
MIC
2 GND
3 MIC Power
4 NC
5 Line Out (R)
6
NC
7 NC
8 No Pin
9 Line Out (L)
10 NC
For HD Front Panel Audio:
Pin No. Denition
1
MIC2_L
2 GND
3 MIC2_R
4 -ACZ_DET
5 LINE2_R
6
GND
7 FAUDIO_JD
8 No Pin
9 LINE2_L
10 GND
Pin No. Denition Pin No. Denition
1 VBUS 11 D2+
2 SSRX1- 12 D2-
3 SSRX1+ 13 GND
4 GND 14 SSTX2+
5 SSTX1- 15 SSTX2-
6 SSTX1+ 16 GND
7 GND 17 SSRX2+
8 D1- 18 SSRX2-
9 D1+ 19 VBUS
10 NC 20 No Pin
10) F_USB30(USB3.0/2.0Header)
 TheheaderconformstoUSB3.0/2.0specicationandcanprovidetwoUSBports.Forpurchasingthe
optional 3.5" front panel that provides two USB 3.0/2.0 ports, please contact the local dealer.
F_USB30
F_AUDIO(H)
DB_PORT
F_PANEL(NH) F_PANEL
(H61M-D2)
ACPI_CPT
(GA-IVB)
BIOS_PH
(GA-IVB)
SMB_CPT
(GA-IVB)
CLR_CMOS
CI
DIS_ME
GP15_CPT
(GA-IVB)
XDP_CPU
XDP_PCH
(GA-IVB)
TPM
w/housing
Voltage measurement module(X58A-OC)
PCIe power connector (SATA)(X58A-OC)
DIP
123
DIP
123
DIP
123
DIP
123
1
1
1
1
BIOS Switcher (X58A-OC)
PWM Switch (X58A-OC)
M_SATA
PWM Switch (SW1)(X79-UD7)
DIP
1 2 3 4 5
Voltage measurement points(G1.Sniper 3)
BIOS Switcher (SW4)
20
10 11
1
Prior to installing the USB front panel, be sure to turn off your computer and unplug the power cord
from the power outlet to prevent damage to the USB front panel.