Kontron AM5010 BIOS - Manual (Page 115)

AM4010/AM4011/AM5010 BIOS POST Codes
ID 1022-2060, Rev. 2.0 Page 105
A8 Prepare CPU for OS boot including final MTRR values.
A9 Wait for user input at config display if needed.
AA Uninstall POST INT1Ch vector and INT09h vector. Deinitializes the ADM module.
AB Prepare BBS for Int 19 boot.
AC End of POST initialization of chipset registers.
B1 Save system context for ACPI.
00 Passes control to OS Loader (typically INT19h).
CHECKPOINT DESCRIPTION