Tektronix TDS6404, Service Manual, Page: 217 / 252

Troubleshooting
TDS6000 Series Service Manual
6- 67
Table 6- 9: BIOS Error messages (Radisys) (Cont.)
Displayed
error code
Error message
Displayed
error code
Error message
34h Test CMOS RAM 9Ch Set up power management
35h Initialize alternate chipset registers 9Dh Initialize security
36h Warm start shutdown entry point 9Eh Enable hardware interrupts
37h Re-initialize the chipset 9Fh HDD fast initialization (second)
38h Shadow system BIOS ROM A0h Set time of day
39h Reinitialize the cache A2h Check key lock
3Ah Auto-size cache A4h Initialize typematic rate
3Ch Configure advanced chipset registers A8h Erase F2 prompt
3Dh Load alternate registers with CMOS values AAh Scan for F2 keystroke
3Eh Read HW ACh Enter SETUP
40h Set Initial CPU speed AEh Clear in-POST flag
42h Initialize interrupt vectors B0h Check for errors
44h Initialize BIOS interrupts B2h POST done--prepare to boot operating system
45h Core device initialization B4h One beep before boot
46h Check ROM copyright notice B5h Quiet boot end/display MultiBoot menu
48h Check video configuration against CMOS B6h Check password (optional)
49h Initialize PCI bus and devices B8h Clear global descriptor table
4Ah Initialize all video adapters in system B9h Prepare to boot
4Bh Display Quiet-Boot screen BAh DMI
4Ch Shadow video BIOS ROM BBh Initialize BCVS
4Eh Display copyright notice BCh Clear parity checkers
50h Display CPU type and speed BDh Boot Menu
51h Initialize EISA board BEh Clear screen (optional)
52h Test Keyboard BFh Check virus and backup reminders
54h Set key click if enabled C0h Try to boot with INT19
56h Enable keyboard C1h Initialize PEM
58h Test for unexpected interrupts C2h PEM log
59h Initialize PDS C3h PEM display
5Ah Display prompt “Press F2 to enter SETUP” C4h PEM system error initialization
5Bh CPU cache off C5h Dual CMOS
5Ch Test RAM between 512 Kb and 640 Kb C6h Docking initialization
5Eh Base address C7h Late docking initialization
60h Test extended memory D0h Interrupt handler error
62h Test extended memory address lines D2h Unknown interrupt error