Tektronix TDS6404, Service Manual

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Troubleshooting
6- 66
TDS6000 Series Service Manual
Table 6- 9: BIOS Error messages (Radisys)
Displayed
error code
Error message
Displayed
error code
Error message
02h Verify real mode 6Ch Display shadow message
03h Disable NMI 6Eh Display non-disposable segments
04h Get CPU type 70h Display error messages
06h Initialize system hardware 72h Check for configuration errors
08h Initialize chipset registers with initial POST values 74h Test real-time clock
09h Set POST flag 76h Check for keyboard errors
0Ah Initialize CPU registers 7Ah Test for key lock on
0Bh Enable CPU cache 7Ch Set up hardware interrupt vectors
0Ch Initialize cache to initial POST values 7Eh Test coprocessor if present
0Eh Initialize I/O 80h Disable on-board I/O ports
0Fh Initialize local bus IDE 81h Late device initialization
10h Initialize power management 82h Detect and install external RS-232 ports
11h Load alternate registers with initial POST values 83h Configure IDE controller
12h Restore CR0 84h Detect and install external parallel ports
13h Reset PCI BM 85h Initialize PCI PCC devices
14h Initialize keyboard controller 86h Reinitialize on-board I/O ports
16h BIOS ROM checksum 87h Configure MCD devices
17h Presize DRAM 88h Initialize BIOS data area
18h 8254 timer initialization 89h Initialize NMI
1Ah 8237 DMA controller initialization 8Ah Initialize extended BIOS data area
1Ch Reset programmable interrupt controller 8Bh Initialize mouse
20h Test DRAM refresh 8Ch Initialize floppy controller
22h Test 8742 keyboard controller 8Eh Execute auto-typing
24h Set ES segment register to 4GB 8Fh Hard disk controller fast preinitialization
26h Enable A20 90h Initialize hard disk controller
28h Auto-size DRAM 91h Initialize local bus hard disk controller
29h Initialize PMM 92h Jump to User-Patch2
2Ah Clear 512 Kb base RAM 93h Build MPTABLE for multiprocessor boards
2Ch Test 512 Kb base address lines 95h Install CD-ROM for boot
2Eh Test low byte of 512 Kb base memory 96h Clear huge ES segment register
2Fh Pre-system shadow 97h Fix up MP table
30h Test high byte of 512 Kb base memory 98h Search for option ROMs (beep for bad checksum)
32h Test CPU bus-clock frequency 99h Check for SMART HDD
33h Initialize PDM 9Ah Shadow option ROMs