Gigabyte B550I AORUS PRO AX User Manual - Page 20

F_USB1 USB 2.0/1.1 Header, CLR_CMOS Clear CMOS Jumper, BAT Battery

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14) F_USB1 (USB 2.0/1.1 Header) The header conforms 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. 12 Pin No. Definition Pin No. Definition 1 Power (5V) 6 USB DY+ 2 Power (5V) 7 GND 3 USB DX- 8 GND 9 10 4 USB DY- 9 No Pin 5 USB DX+ 10 NC •• 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. 15) 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 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). U F_USB30 3 B_ B_ USB 0_ B F_USB3 16) BAT (Battery) The battery provides power to keep the values (such as BIOS configurations, date, and time information) in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a low level, or the CMOS values may not be accurate or may be lost. You may clear the CMOS values by removing the battery: 1. Turn off your computer and unplug the power cord. 2. Unplug the the battery cable from the battery cable header and wait for one minute. 3. Plug in the battery cable. 4. Plug in the power cord and restart your computer. S S_F 1 (+) Pin No. Definition 1 (+) RTC Power 2 (-) B 2 (-) GND _ •• Always turn off your computer and unplug the power cord before replacing the battery. •• Replace the battery with an equivalent one. Damage to your devices may occur if the battery is replaced with an incorrect model. •• Contact the place of purchase or local dealer if you are not able to replace the battery by yourself or uncertain about the battery model. •• Used batteries must be handled in accordance with local environmental regulations. S F_ S_ S_ - 20 - S _S B_ _

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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.
14) F_USB1 (USB 2.0/1.1 Header)
The header conforms 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.
Pin No.
Definition
Pin No.
Definition
1
Power (5V)
6
USB DY+
2
Power (5V)
7
GND
3
USB DX-
8
GND
4
USB DY-
9
No Pin
5
USB DX+
10
NC
9
1
10
2
15) 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.
Always turn off your computer 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).
Open: Normal
Short: Clear CMOS Values
16) BAT (Battery)
The battery provides power to keep the values (such as BIOS configurations, date, and time information)
in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a low
level, or the CMOS values may not be accurate or may be lost.
You may clear the CMOS values by removing the battery:
1. Turn off your computer and unplug the power cord.
2. Unplug the the battery cable from the battery cable header and wait for one minute.
3. Plug in the battery cable.
4. Plug in the power cord and restart your computer.
Always turn off your computer and unplug the power cord before replacing the battery.
Replace the battery with an equivalent one. Damage to your devices may occur if the battery is
replaced with an incorrect model.
Contact the place of purchase or local dealer if you are not able to replace the battery by yourself
or uncertain about the battery model.
Used batteries must be handled in accordance with local environmental regulations.
Pin No.
Definition
1 (+)
RTC Power
2 (-)
GND
1 (+)
2 (-)
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