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‎06-30-2026 12:25 PM

HP Recommended

Desktop boots up twice; one to a black screen (with a CMOS 502 error), and once I am prompted to press "Enter", it boots up again normally to Windows and then functions normally.

 

Opened the desktop and there is no CMOS battery to replace.  I have updated the BIOS to the latest version using the HP Diagnostics Tool.  The CMOS (502) error persists.  How can I fix this issue.

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