Texas Instruments TravelMate 5000 Series Maintenance Manual page 101

Table 4-2 Self-Test Beep Codes (continued)
Beep Code Port 80h
2-3-3 1Ah
2-3-4 1Bh
2-4-1 1Ch
2-4-2 1Dh
2-4-3 1Eh
2-4-4 1Fh
3-1-1 20h
3-1-2 21h
3-1-3 22h
3-1-4 23h
None 25h
3-2-4 27h
None 28h
None 29h
3-3-4 2Bh
3-4-1 2Ch
3-4-2 2Dh
None 2Eh
None 30h
None 31h
None 32h
None 33h
4-2-1 34h
4-2-2 35h
4-2-3 36h
4-2-4 37h
4-3-1 38h
4-3-3 3Ah
4-3-4 3Bh
4-4-1 3Ch
4-4-2 3Dh
4-4-3 3Eh
Description
Bit A, 1ST 64K RAM Failure
Bit B, 1ST 64K RAM Failure
Bit C, 1ST 64K RAM Failure
Bit D, 1ST 64K RAM Failure
Bit E, 1ST 64K RAM Failure
Bit F, 1ST 64K RAM Failure
Slave DMA Register Failure
Master DMA Register Failure
Master Interrupt Mask Register Failure
Slave Interrupt Mask Register Failure
Interrupt Vector Loading In Progress
Keyboard Controller Test Failure
CMOS Power Failure and Checksum in
Progress
CMOS Configuration Validation in Progress
Screen Memory Test Failure
Screen Initialization Failure
Screen Retrace Test Failure
Search for Video ROM in progress
Screen Believed Operable; running with
Video ROM
Monochrome Monitor Believed Operable
Color Monitor (40 Column) Believed
Operable
Color Monitor (80 Column) Believed Operable
No Time Tick
Shutdown Failure
Gate A20 Failure
Unexpected Interrupt in Protected Mode
Memory High Address Line Failure at
010000h-0A0000h
Timer Chip Counter 2 Failed
Time of Day Clock Stopped
Serial Port Failure
Parallel Port Failure
Math Co-processor Failure
Troubleshooting Procedures 4-9