5-10 Troubleshooting Procedures
Table 5-3 Self Test Beep Codes (continued)
Beep Code Port 80h Description
3-1-4 23h Slave Interrupt Mask Register Failure
None 25h Interrupt Vector Loading In Progress
3-2-4 27h Keyboard Controller Test Failure
None 28h CMOS Power Failure and Checksum in
Progress
None 29h CMOS Configuration Validation in Progress
3-3-4 2Bh Screen Memory Test Failure
3-4-1 2Ch Screen Initialization Failure
3-4-2 2Dh Screen Retrace Test Failure
None 2Eh Search for Video ROM in progress
1-2 2Eh Cirrus Video Chip Failure
1-3 2Eh Cirrus RAM DAC or Video RAM Failure
None 30h Screen Believed Operable; running with
Video ROM
None 31h Monochrome Monitor Believed Operable
None 32h Color Monitor (40 Column) Believed
Operable
None 33h Color Monitor (80 Column) Believed
Operable
4-2-1 34h No Time Tick
4-2-2 35h Shutdown Failure
4-2-3 36h Gate A20 Failure
4-2-4 37h Unexpected Interrupt in Protected Mode
4-3-1 38h Memory High Address Line Failure at
010000h-0A0000h
4-3-3 3Ah Timer Chip Counter 2 Failed
4-3-4 3Bh Time of Day Clock Stopped
4-4-1 3Ch Serial Port Failure
4-4-2 3Dh Parallel Port Failure
4-4-3 3Eh Math Coprocessor Failure
5.3.4 PCMCIA Modem Problems
If an optional PCMCIA modem does not work properly, check the following items:
To Next Page
Loading...
