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Jumpers and Connectors Location- Bottom
Figure 2.4:
1. RTC1/SRTC1:
(2.0mm Pitch 1X2 Pin Header)CMOS clear jumper, CMOS clear operation will permanently reset old
BIOS settings to factory defaults.
（RTC1Pin1-SRTC1 Pin close）
Procedures of CMOS clear:
a) Turn off the system and unplug the power cord from the power outlet.
b) To clear the CMOS settings, use the jumper cap to close pins1 and 2 for about 3
seconds then reinstall the jumper clip back to pins open.
c) Power on the system again.
d) When entering the POST screen, press the <DEL> key to enter CMOS Setup
Utility to load optimal defaults.
e) After the above operations, save changes and exit BIOS Setup.
2. BAT1 :
(1.25mm Pitch 1X2 box Pin Header) 3.0V Li battery is embedded to provide power for CMOS.
RTC1/SRTC1
Open or
Close 1-2
CMOS
NORMAL (Default)
Clear CMOS
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