Post Error Messages - Acer Extensa 900 Series Maintenance Manual

5.3.3.1 POST Error Messages

Upon successful completion of Power On Self Test, the computer automatically loads
its operating system and other built-in utilities. If POST fails to complete successfully,
the display shows one of the error messages described in Table 5-2.
Note: In the event of a hardware problem that affects the display, the Notebook
also communicates errors via a series of beeps. The interpretation of the beep
codes is provided in Table 5-3.
Note: Refer to Appendix C for POST BIOS listing.
Troubleshooting Procedures 5-5