Question about Dell OptiPlex GX280 PC Desktop
Unplug your desktop from mains power.
Open the case.
Locate the 3 pin CMOS password reset jumper on the system board. It has to be near the small bios battery that looks like this
Remove the jumper plug from pins 1 and 2.
Place the jumper plug on pins 2 and 3 and wait approximately 5 seconds.
Replace the jumper plug on pins 1 and 2.
Power up the system and check the results.
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Posted on Oct 01, 2010
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Posted on Jan 02, 2017
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