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Jumper Setting Description; Cmos Data Clear - Lex Computech CI770A Instruction Manual

Intel mobile ivy bridge processor + (pch)qm77 / ddr3 1066/1333 mt/s / lan / dvi/ hdmi /audio /usb / pcie mini card
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2-8 Jumper Setting Description

A jumper is ON as a closed circuit with a plastic cap covering two pins. A jumper is OFF
as an open circuit without the plastic cap. Some jumpers have three pins, labeled 1, 2,
and 3. You could connect either pin 1 and 2 or 2 and 3.
The below figure 2.2 shows the examples of different jumper settings in this manual.
All jumpers already have its default setting with the plastic cap inserted as ON,
or without the plastic cap as OFF. The default setting may be referred in this
manual with a "
*
2-9 JSB1: CMOS Data Clear
A battery must be used to retain the motherboard configuration in CMOS RAM.
Close Pin1 and pin 2 of JSB1 to store the CMOS data.
To clear the CMOS,follow the procedures below:
1. Turn off the system and unplug teh AC power
2. Remove DC 12V power cable from DC 12V power connector
3. Locate JSB1 and close pin 1-2 for few seconds
4. Return to default setting by openning pin 1-2
5. Connect DC 12V power cable back to DC 12V Power connector
" symbol .
21
Figure 2.2

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