Filter
Top Products
PC Specialist's Handbook ErgoPro m664-series
Edition 1 - Release 1 - March 1998 Page 5-7
Code Description of POST Operation
66h Configure advanced cache registers
67h Initialize multiprocessor APIC
68h Enable external and processor 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
74h Test real-time clock
76h Check for keyboard errors
7Ah Test for key lock on
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 RS232 ports
83h Configure non-MCD IDE controllers
84h Detect and install external parallel ports
85h Initialize PC-compatible PnP ISA devices
86h Re-initialize onboard I/O ports
87h Configure motherboard configurable devices
88h Initialize BIOS Data Area
89h Enable Non-Maskable Interrupts (NMIs)
8Ah Initialize extended BIOS data area
8Bh Test and initialize PS/2 mouse
8Ch Initialize floppy controller
8Fh Determine number of ATA drives
90h Initialize hard-disk controllers
91h Initialize local-bus hard-disk controllers
92h Jump to UserPatch2
93h Build MPTABLE for multiprocessor boards
94h Disable A20 address line (Rel. 5.1 and earlier)
95h Install CD ROM for boot
96h Clear huge ES segment register
97h Fix up multiprocessor table
98h Search for option ROMs