I-Bus IBC 2600, User Manual, Page: 113 / 140

Appendix 1 - BIOS Messages
A1-9 IBC 2600 User’s Guide
PORT 80 CODES (continued)
Code Description
13 Video display disabled and port B initialized. Initializing chipset next.
14 8254 timer test to begin next.
19 8254 timer test over. Starting memory refresh test next.
1A Memory refresh line is toggling. Checking 15 microsecond on/off time
next.
23 Reading 8042 input port and disabling MEGAKEY Green PC feature
next. Making BIOS code segment writable and performing any
necessary configuration before initializing the interrupt vectors.
24 Configuration required before interrupt vector initialization complete.
Interrupt vector initialization about to begin.
25 Interrupt vector initialization done. Clearing password if POST
diagnostic switch is on.
27 Any initialization before setting video mode to be done next.
28 Initialization before setting video mode is complete. Configuring
monochrome mode and color mode settings next.
2A Bus initialization (system, static, output devices) to be done next, if
present. (See end of Port 80H Codes for details of different buses.)
2B Passing control to video ROM to perform any required configuration
before video ROM test.
2C All necessary processing before passing control to video ROM is
done. Looking for video ROM next and passing control to it.
2D Video ROM has returned control to BIOS POST. Performing any
required processing after video ROM had control.
2E Completed post-video ROM test processing. If EGA/VGA controller
not found, performing display memory read/write test next.
2F EGA/VGA controller not found. Display memory read/write test about
to begin.
30 Display memory read/write test passed. Looking for retrace checking
next.
31 Display memory read/write test or retrace checking failed. Performing
alternate display memory read/write test next.
32 Alternate display memory read/write test passed. Looking for alternate
display retrace checking next.
34 Video display checking over. Setting display mode next.
37 Display mode set. Displaying power-on message next.