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Dell Precision 7520 Owner's Manual

PDF

Clearing CMOS settings

CAUTION Clearing CMOS settings resets the BIOS settings on your computer.
  1. Remove the:
    1. battery cover
    2. battery
    3. base cover
  2. Remove the coin-cell battery.
  3. Wait for one minute.
  4. Replace the coin-cell battery.
  5. Replace the:
    1. base cover
    2. battery
    3. battery cover
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