Gigabyte Z370 AORUS Ultra Gaming User Manual page 22

20) CLR_CMOS (Clear CMOS Jumper)
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
21) BAT (Battery)
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. Gently remove the battery from the battery holder and wait for one minute. (Or use a metal
3. Replace the battery.
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.
When installing the battery, note the orientation of the positive side (+) and the negative side (-)
of the battery (the positive side should face up).
Used batteries must be handled in accordance with local environmental regulations.
22) CPU/VGA/DRAM/BOOT (Status LEDs)
The status LEDs show whether the CPU, graphics card, memory, and operating system are working
properly after system power-on. If the CPU/VGA/DRAM LED is on, that means the corresponding device
is not working normally; if the BOOT LED is on, that means you haven't entered the operating system yet.
CPU: CPU status LED
VGA: Graphics card status LED
DRAM: Memory status LED
CPU DRAM
BOOT: Operating system status LED
VGA BOOT
object like a screwdriver to touch the positive and negative terminals of the battery holder,
making them short for 5 seconds.)
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