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172 Maintaining and Troubleshooting the Gateway ALR 9200 Server
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
95 Install CD-ROM for boot
96 Clear huge ES segment register
98 1-2 Search for option ROMs. One long, two short beeps on checksum failure
9A Shadow option ROMs
9C Set up Power Management
9E Enable hardware interrupts
A0 Set time of day
A2 Check key lock
A4 Initialize typematic rate
A8 Erase F2 prompt
AA Scan for F2 key stroke
AC Enter SETUP
AE Clear in-POST flag
B0 Check for errors
B2 POST done – prepare to boot Operating System
B4 1 One short beep before boot
B5 Display MultiBoot menu
B6 Check password (optional)
B8 Clear global descriptor table
BC Clear parity checkers
BE Clear screen (optional)
Table 34: Port-80h Codes and Beep Codes (Continued)
Port-80
Codes
Beep
Codes
Error Descriptions
3424.boo Page 172 Wednesday, September 2, 1998 9:23 AM