Question about Dell OptiPlex GX520 PC Desktop
Reset the CMOS by unplugging your Optiplex from the power cable & removing the CMOS battery.
The CMOS battery is just a larger "watch battery" about the size of a nickel. Remove it for a few seconds, put it back in & power it back up. This will reset the BIOS password & restore all the BISO settings to default however.
Posted on Oct 16, 2013
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Posted on Jan 02, 2017
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