Article ID: 000089906 Content Type: Troubleshooting Last Reviewed: 05/05/2023

How to Do BIOS Default or CMOS Clear by Jumper Method on Intel® Server Board S2600CW Family


Steps to clear the CMOS (Complementary Metal-Oxide Semiconductor)


An Intel Server Board S2600CW2R displaying Warning message to Update the Factory Firmware to Production version and No boot issue.


The following instructions can be found at the Intel® Server Board S2600CW Product Family Technical Product Specification Section 8.1,  BIOS Default Jumper Block: 

This jumper resets BIOS options, configured using the <F2> BIOS Setup Utility, back to their original default factory settings.


This jumper does not reset Administrator or User passwords. In order to reset passwords, the Password Clear jumper must be used.

  1. Power down the server and unplug the power cord(s).
  2. Open the Server Chassis. For instructions, see your chassis documentation.
  3. Move jumper from the default operating position pins 1 - 2 (default) to the reset/clear position pins 2 - 3.
  4. Wait 5 seconds.
  5. Move the jumper back to default position pins 1 - 2
  6. Close the Server Chassis.
  7. Install AC power cords.
  8. Power up the server and access the BIOS setup utility by <F2>.
  9. Verify the BIOS default operation was successful by viewing the Error Manager Screen. Two errors should be logged:
    • 0012 System RTC date/time not set
    • 5220 BIOS Settings reset to default settings

The CMOS is now cleared and can be reset by going into BIOS Setup.

It is recommended to update the BIOS to production version after resetting the BIOS to defaults. 

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