Gigabyte B450 AORUS PRO WIFI User Manual page 21

18) CLR_CMOS (Clear CMOS Jumper)
Use this jumper to clear the BIOS configuration and reset the CMOS values to factory defaults. To clear
the CMOS values, use a metal object like a screwdriver to touch the two pins for a few seconds.
Open: Normal
Short: Clear CMOS Values
• Always turn off your computer and unplug the power cord from the power outlet before clearing
the CMOS values.
• After system restart, go to BIOS Setup to load factory defaults (select Load Optimized Defaults) or
manually configure the BIOS settings (refer to Chapter 2, "BIOS Setup," for BIOS configurations).
19) F_USB30 (USB 3.1 Gen 1 Header)
The header conforms to USB 3.1 Gen 1 and USB 2.0 specification and can provide two USB ports. For
purchasing the optional 3.5" front panel that provides two USB 3.1 Gen 1 ports, please contact the local
dealer.
1
F_USB30
20
20) F_USB1/F_USB2 (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
optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.
9
10
• Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB 2.0/1.1 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.
S
Pin No. Definition
1 VBUS
10
2 SSRX1-
F_ U
3 SSRX1+
11
4 GND
5 SSTX1-
6 SSTX1+
7 GND
8 D1-
9 D1+
10 NC
B_
Pin No. Definition
1 Power (5V)
2 Power (5V)
1
3 USB DX-
2
4 USB DY-
5 USB DX+
S
- 21 -
B S S
3
Pin No. Definition
11 D2+
12 D2-
13 GND
14 SSTX2+
15 SSTX2-
16 GND
17 SSRX2+
18 SSRX2-
19 VBUS
20 No Pin
B S S
1
Pin No. Definition
6 USB DY+
S
7 GND
8 GND
9 No Pin
10 NC
1 2 3
U
S
F_
_S
_ _ 3