HP XM600 - Kayak - 128 MB RAM Technical Reference Manual page 130

6 Tests and Error Messages
Order in Which POST Tests Are Performed
Checkpoint
Code
56h Enable keyboard
58h Test for unexpected interrupts
59h Initialize POST display service
5Ah Display prompt "Press F2 to enter SETUP"
5Bh Disable CPU cache
5Ch Test RAM between 512 and 640 KB
60h Test extended memory
62h Test extended memory address lines
64h Jump to UserPatch1
66h Configure advanced cache registers
67h Initialize Multi Processor APIC
68h Enable external and CPU caches
69h Setup System Management Mode (SMM) area
6Ah Display external L2 cache size
6Ch Display shadow-area message
6Eh Display possible high address for UMB recovery
70h Display error messages
72h Check for configuration errors
76h Check for keyboard errors
7Ch Set up hardware interrupt vectors
7Eh Initialize coprocessor if present
80h Disable onboard Super I/O ports and IRQs
81h Late POST device initialization
82h Detect and install external RS 232 ports
83h Configure non-MCD IDE controllers
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POST Routine Description
MaxiLife LCD
Beep
Display
Codes
Message
Unexpect. STOP
Base Memory Test
Ext. Memory Data
Ext. Memory Add.
Keyboard Test