Appendix I: Post Codes
CB3067
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Version: 1.0
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Appendix I: Post Codes
During the boot phase, the BIOS generates a series of status messages (so-called "POST Codes"), which
can be output with the help of a suitable reading device (POST Code card). The meanings of the POST
Codes are explained in the document "Aptio™ 5.x Status Codes" from American Megatrends®, which is
available from the website
. In addition, the following OEM POST Codes are output:
Code
Description
87h
BIOS-API started
88h
PCA9535 started
89h
PWRCTRL firmware started