Question about Dell OptiPlex SX280 PC Desktop
You need to clear the CMOS settings. To do this, you will need to set the CMOS jumper to the clear state (if the motherboard has one) OR remove the CMOS battery located on the motherboard. After waiting a few seconds, replace the battery and power the PC back on and attempt to enter the BIOS.
The battery will be a large flat battery similar to what you would find in a watch.
Posted on Mar 04, 2009
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Posted on Jan 02, 2017
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