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Alienware Area-51 R4 Service Manual

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Clearing CMOS Settings

NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.
NOTE: The computer must be disconnected from the electrical outlet to clear the CMOS setting.
  1. Lay the system on the right side.
  2. Remove the stability foot
  3. Remove the left and right side-panels. See “Removing the side panels”.
  4. Locate the CMOS jumper (RTC_CLR1) on the system board. See “system-board components”.
  5. Remove the jumper plug from pins 2 and 3 and fix it on pins 1 and 2.
  6. Wait for approximately five seconds to clear the CMOS setting.
  7. Remove the jumper plug from pins 1 and 2 and replace it on pins 2 and 3.
    Figure 1. Clearing CMOS settings
    Image: Clearing CMOS settings
    1. pin 1
    2. pin 2
    3. pin 3
    4. jumper plug
  8. Replace the left and right side panels. See "Replacing the side panels”.
  9. Replace the stability foot.

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