Intel MB440LX manual 217

Table 10-2. Port-80 Codes (continued)

Port 80 Code	Reason
68	Enable external and CPU caches
6A	Display external cache size
6C	Display shadow message
6E	Display non-disposable segments
70	Display error messages
72	Check for configuration errors
74	Test real-time clock
76	Check for keyboard errors
7A	Test for key lock on
7C	Set up hardware interrupt vectors
7E	Test coprocessor if present
80	Detect and install external RS232 ports
82	Detect and install external parallel ports
85	Initialize PC-compatible PnP ISA devices
86	Re-initialize on board I/O ports.
88	Initialize BIOS Data Area
8A	Initialize Extended BIOS Data Area
8C	Initialize floppy controller
90	Initialize hard-disk controller
91	Initialize local-bus hard-disk controller
92	Jump to UserPatch2
93	Build MPTABLE for multi-processor boards
94	Disable A20 address line

Continued

M440LX Server System Product Guide 217