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102 xSeries 343 Hardware Maintenance Manual
Table 17. POST Code - Port 80h Codes (continued)
Diagnostic LED Decoder
Note: G=Green, R=Red,
A=Amber
Post
Code
MSB LSB
Description
A2h R Off A Off Report second set of POST errors to error messenger.
86h R G G Off
Prepare And Run Setup: error manager displays and logs POST
errors. Waits for user input for certain errors. Execute setup.
8Bh A Off G G Set base expansion memory size.
8Ch A G Off Off Adjust Setup: programming the Setup options next.
A5h R G R G Set display mode.
A7h R G A G OEM Patch 12.
A7h R G A G Build SMBIOS table and MP tables.
A7h R G A G Program hot key and timeout settings in keyboard controller.
A7h R G A G Processor initialization before boot.
A7h R G A G Copy required language strings to shadow RAM.
AAh A Off A Off Clear video screen.
000h Off Off Off Off One beep to indicate end of POST. No beep if silent boot is enabled.
000h Off Off Off Off POST completed. Passing control to INT 19h boot loader next.