Gigabyte GA-990FXA-UD3 User Manual page 27

10) F_USB1/F_USB2/F_USB3 (USB 2.0/1.1 Headers)
The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports via an
UG
optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.
T
11) 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.
• 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
9 1
10 2
10
1
F_USB30
20
Pin No. Definition
1 VBUS
2 SSRX1-
3 SSRX1+
4 GND
5 SSTX1-
6 SSTX1+
7 GND
8 D1-
9 D1+
10 NC
TPM
w/housing
- 27 -
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
NC
10
F_AUDIO(H)
11
Pin No. Definition
11 D2+
12 D2-
13 GND
14 SSTX2+
15 SSTX2-
16 GND
17 SSRX2+
DB_PORT
18 SSRX2-
19 VBUS
20 No Pin
Voltage measurement module(X58A-OC)
PCIe power connector (SATA)(X58A-OC)
Hardware Installation
BIOS
PW