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M440LX Server System Product Guide
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