This jumper allows you to clear the BIOS password. The BIOS password is used to protect BIOS settings from unwanted changes. If you have forgotten your password you may disable password checking.
To clear the BIOS password follow these steps:
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Turn OFF the computer and unplug the power cord.
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Locate the jumper labeled CLR_PWD.
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Move the jumper
cap from pins 1-2 (default) to pins 2-3.
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Wait approximately 10 seconds and then return the jumper to pins 1-2.
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Plug in the power cord and turn ON the computer.