Troubleshooting your computer
You can troubleshoot your computer using indicators like diagnostic lights, beep codes, and error messages during the operation of the
computer.
Error Messages
There are three types of BIOS error messages that are displayed depending on the severity of the issue. They are:
Errors That Halt Your Computer Completely
These error messages will halt the computer requiring you to cycle the system's power. The following table lists the error messages.
Table 13. Errors that halt your computer completely
Error Message
Error! Non-ECC DIMMs are not supported on this system.
Alert! Processor cache size is mismatched.
Install like processor or one processor.
Alert! Processor type mismatch.
Install like processor or one processor.
Alert! Processor speed mismatch
Install like processor or one processor.
Alert! Incompatible Processor detected.
Install like processor or one processor.
Errors That Do Not Halt Your Computer
These error messages will not halt your computer, but will display a warning message, pause for a few seconds, and then continue to boot.
The following table lists the error messages.
Table 14. Errors that do not halt your computer
Error Message
Alert! Cover was previously removed.
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Troubleshooting your computer 65
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