Digital Equipment Prioris XL 6000 Series, Service Maintenance Manual

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Server Management
4-8
Port 80
Codes Countdown
Codes Description
32h Check vertical retrace
34h Sign on message
36h Initialize messaging services and clear screen
37h 500 Custom sign on display
80h 370 Keyboard/mouse port check
81h KBC initialization and testing
83h Check if keyboard is locked
F5h 330 Initialize mouse
39h Keyboard, mouse, and other sign-ons
3Bh Prepare for memory test
43h 290 Decide memory size from chipset
4Fh Disable cache, test memory, and display memory size on screen
52h Initialize for the other processors in MP system, reset DMA controller
61h 250 DMA register tests
62h DMA test OK
65h Initialize 8237 DMA controller
66h Clear DMA write request register and mask set/reset register
67h 220 8259 interrupt controller test
F4h Enable extended NMI sources
8Ch 140 Initialize remaining Plug and Play devices (i.e., other than video),
initialize IPL, initialize IDE controller
8Fh 130 Floppy initialization
92h Set printer, RS-232 timeout
96h Option ROM scan and initialization above C800h
97h 080 Scan user binary and conventional option ROM scan
98h Scan user binary area
continued