Gigabyte GA-990FXA-UD7, User Manual, Page: 29 / 112

- 29 - Hardware Installation
13) F_USB1/F_USB2/F_USB3 (USB Headers)
The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports via an
optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.
DEBUG
PORT
G.QBOFM
10
9
2
1
• Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB header.
• Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord
from the power outlet to prevent damage to the USB bracket.
Pin No. Definition
1 Power (5V)
2 Power (5V)
3 USB DX-
4 USB DY-
5 USB DX+
6 USB DY+
7 GND
8 GND
9 No Pin
10 NC
12) F_USB30 (USB 3.0/2.0 Header)
The header conforms to USB 3.0/2.0 specification 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.
Pin No. Definition Pin No. Definition
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
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)
DI
P
12
3
DIP
12 3
DI
P
12
3
DIP
1 2 3
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)
PCIe Control (Z87X-UP7)
DI
P
1
2
3
4
DI
P
1
2
3
4
DIP
12 34
DIP
1 2 3 4
ATX_12V_2X3
F_USB3 (Front Panel)
10
20
1
11
When the system is in S4/S5 mode, only the USB ports routed to the F_USB1 header can support
the ON/OFF Charge function.