ELSKY EM218, User Manual, Page: 14 / 33

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2.14 Motherboard discharges,clears and battery:
The"CMOS" is powered by the button battery on the motherboard.
Clearing the "CMOS" will cause the previous BIOS settings to be cleared and restore the original factory setting.
Clearing CMOS procedures:
Method 1:
(1)Turn off the motherboard and disconnect the power.
(2)Use metal conductors to briefly connect the pin 2,pin 3 of "CLR_CMOS1" for 5~6 seconds.
(3)When booting up, press "Delete" to enter the BIOS.
(4)After entering the BIOS, press "F9" ,"Enter" to reload the optimal default value.
(5)Press the "F10" to save and exit the setting.
Method 2:
When the motherboard is powered off, plug and pull the button battery to achieve the motherboard clear function.
Remove the button battery, and then re-install the button battery after 10 seconds.Please pay attention to the positive
and negative of the battery.
CMOS pin definition:
Position symbol: CLR_CMOS1 (1*3Pin,2.54mm)
pin position symbol drawing
pin Function
1-2 short circuit Normal
2-3 short circuit Clear CMOS content,BIOS will restore factory settings.
Notice: Please do not clear the"CMOS"when the motherboard is running or charging, so as not to damage the
motherboard.
Button battery specification: 3V CR2032
Notice:
(1) Please make sure the battery is facing up.
(2) Please make sure the battery voltage is enough 2.8V~3V.
(3) Please must use the same model or the manufacturer recommend the same type of battery.
(4) If the battery is not replaced correctly, there is a danger of explosion!