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Hardware Installation - 31 -
22) 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.
•
Always turn off your computer and unplug the power cord before replacing the battery.
• Replace the battery with an equivalent one. Danger of explosion 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.
23) CLR_CMOS (Clearing CMOS Jumper)
Use this jumper to clear the CMOS values (e.g. date information and BIOS configurations) and reset
the CMOS values to factory defaults. To clear the CMOS values, place a jumper cap on the two pins to
temporarily short the two pins or use a metal object like a screwdriver to touch the two pins for a few
seconds.
1-2 Close: Normal operation (Default setting)
2-3 Close: Clear CMOS data
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