SUPER MICRO Computer H8DCT-HLN4F user manual Appendix B Bios Post Checkpoint Codes

	Appendix B: BIOS POST Checkpoint Codes
Checkpoint	Code Description
52h	The memory above 1 MB has been tested and initialized. Saving the memory size information
	next.
53h	The memory size information and the CPU registers are saved. Entering real mode next.
54h	Shutdown was successful. The CPU is in real mode. Disabling the Gate A20 line, parity, and
	the NMI next.
57h	The A20 address line, parity, and the NMI are disabled. Adjusting the memory size depending
	on relocation and shadowing next.
58h	The memory size was adjusted for relocation and shadowing. Clearing the Hit <DEL> message
	next.
59h	The Hit <DEL> message is cleared. The <WAIT...> message is displayed. Starting the DMA
	and interrupt controller test next.
60h	The DMA page register test passed. Performing the DMA Controller 1 base register test next.
62h	The DMA controller 1 base register test passed. Performing the DMA controller 2 base register
	test next.
65h	The DMA controller 2 base register test passed. Programming DMA controllers 1 and 2 next.
66h	Completed programming DMA controllers 1 and 2. Initializing the 8259 interrupt controller next.
67h	Completed 8259 interrupt controller initialization.
7Fh	Extended NMI source enabling is in progress.
80h	The keyboard test has started. Clearing the output buffer and checking for stuck keys. Issuing
	the keyboard reset command next.
81h	A keyboard reset error or stuck key was found. Issuing the keyboard controller interface test
	command next.
82h	The keyboard controller interface test completed. Writing the command byte and initializing the
	circular buffer next.
83h	The command byte was written and global data initialization has completed. Checking for a
	locked key next.
84h	Locked key checking is over. Checking for a memory size mismatch with CMOS RAM data
	next.
85h	The memory size check is done. Displaying a soft error and checking for a password or
	bypassing WINBIOS Setup next.
86h	The password was checked. Performing any required programming before WINBIOS Setup
	next.
87h	The programming before WINBIOS Setup has completed. Uncompressing the WINBIOS Setup
	code and executing the AMIBIOS Setup or WINBIOS Setup utility next.
88h	Returned from WINBIOS Setup and cleared the screen. Performing any necessary
	programming after WINBIOS Setup next.
89h	The programming after WINBIOS Setup has completed. Displaying the power on screen
	message next.
8Ch	Programming the WINBIOS Setup options next.
8Dh	The WINBIOS Setup options are programmed. Resetting the hard disk controller next.
8Fh	The hard disk controller has been reset. Configuring the floppy drive controller next.
91h	The floppy drive controller has been configured. Configuring the hard disk drive controller next.
95h	Initializing the bus option ROMs from C800 next. See the last page of this chapter for additional
	information.
96h	Initializing before passing control to the adaptor ROM at C800.

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