MiTAC 8355 service manual 118

8355 N/B MAINTENANCE

7.2 Error Codes

Following is a list of error codes in sequent display on the PIO debug board.

Code	POST Routine Description
30h	Special init of keyboard ctlr
31h	Test if keyboard Present
32h	Test keyboard Interrupt
33h	Test keyboard command byte
34h	Test, blank and count all RAM
35h	Protected mode entered safely(2)
36h	RAM test complete
37h	Protected mode exit successful
38h	Update output port
39h	Setup cache controller
3Ah	Test if 18.2Hz periodic working
3Bh	Test for RTC ticking
3Ch	Initialize the hardware vectors
3Dh	Search and init the mouse
3Eh	Update NUMLOCK status
3Fh	Special init of COMM and LPT ports

Code	POST Routine Description
40h	Configure the COMM and LPT ports
41h	Initialize the floppies
42h	Initialize the hard disk
43h	Initialize option ROMs
44h	OEM’s init of power management
45h	Update NUMLOCK status
46h	Test for coprocessor installed
47h	OEM functions before boot
48h	Dispatch to operate system boot
49h	Jump into bootstrap code
50h	ACPI init
51h	PM init & Geyserville CPU init
52h	USB HC init

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