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6 Tests and Error Messages
Order in Which POST Tests Are Performed
A Check Point Code allows you to follow the POST schedule on the MaxiLife
LCD panel. To achieve this, you first need to select the “Boot Step” option in
the “Service” menu of MaxiLife.
The following table lists the POST checkpoint codes written at the start of
each test and listed in order of execution.
Checkpoint
Code
POST Routine Description
(A Check Point Code is NOT an error code or error number)
Uncompressed Initialization Codes
D0h
NMI is disabled. Power on delay is starting. Next, the initialization code checksum will be
verified.
D1h
Initializing the DMA controller, performing the keyboard controller BAT test, starting
memory refresh, and entering 4 GB flat mode.
D3h
Starting Memory sizing.
D4h
Returning to real mode. Executing any patches and setting the stack.
D5h
Passing control to the uncompressed code shadow RAM at E000:0000h. The initialization
code is copied to segment 0 and control will be transferred to segment 0.
D6h
Control is segment 0. Next, checking if <Ctrl><Home> was pressed and verifying
the system BIOS checksum.
If either <Ctrl><Home> was pressed or the system BIOS checksum is bad, next will
go to checkpoint code E0h.
Otherwise, going to checkpoint code D7h.
D7h
Passing control to the interface module.
D8h
Main system BIOS runtime code will be decompressed.
D9h
Passing control to the main system BIOS in shadow RAM.
Bootblock Recovery Codes
E0h
Onboard floppy disk driver controller is initialized. Next, beginning the base 512 KB
memory test.
E1h
Initializing the interrupt vector table.
E2h
Initializing the DMA and Interrupt controllers.
E6h
Enabling the floppy disk drive controller, Timer IRQs and internal cache memory.
Содержание Kayak XU800 Series
Страница 1: ...HP Kayak XU800 PC Workstation Technical Reference Manual ...
Страница 26: ...26 1 System Overview Documentation ...
Страница 86: ...86 3 Interface Cards Network Cards ...
Страница 106: ...106 5 HP BIOS BIOS Addresses ...
Страница 130: ...130 6 Tests and Error Messages Error Message Summary ...
Страница 140: ...140 7 Connectors and Sockets Rear Panel Socket Pin Layouts ...