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Chapter 5
76
Clear CMOS Button
There is a CMOS RAM on board that has a power supply from external battery to keep the system
configuration data. With the CMOS RAM, the system can automatically boot OS every time it is turned on. If
you want to clear the system configuration, use the SW1 (Clear CMOS Button) to clear data. Press the button
in the middle of the connector rop side to clear the data.
Pin No.
Signal
1
TPA+
2
TPA-
3
Ground
4
Ground
5
TPB+
6
TPB-
7
Cable power
8
Cable power
9
No pin
10
Ground
Illustration
Symbol
Description
Function
1-2 closed
Normal(default)
2-3 closed
Clear CMOS