Beep Pattern
ACTION REQUIRED
4-4-3:
Math co-processor may be bad:
Test processor
4-4-2:
Parallel port failed power on self test:
Replace parallel port
4-4-1:
Serial port failed power on self test:
Replace serial port
4-3-4:
Batteries or power supply bad:
Reset CMOS/replace batteries or power supply
4-3-3:
Timer chip bad:
Replace Motherboard
4-3-2:
Programmer interval timer is bad:
Replace Motherboard
4-3-1:
Address logic chips failed:
Replace Motherboard
4-2-4:
Adapter card bad:
Identify bad adapter card and replace it
4-2-3:
Controller chip loose:
Reinsert loose keyboard controller chip
4-2-2:
Keyboard problem:
Swap keyboard, check AT switch position
4-2-2:
port/controller chip defective:
Replace Motherboard
4-2-1:
Motherboard is bad:
Replace Motherboard
3-4-2:
Video card resets trace bit:
Replace video adapter card
3-4-1:
Video chip on video card bad:
Replace video adapter card
3-3-4:
No video card recognized:
Install a video adapter card
3-2-4:
Cable problem:
Check keyboard keys, switch, cable & connection
3-1-4:
Interrupt controller chip bad:
Replace Motherboard
3-1-3:
Unknown cause:
No solution to provide at this time
3-1-2:
DMA chip bad:
Replace Motherboard
3-1-1:
DMA chip bad:
Replace Motherboard
2-4-4:
Chip holding bit 15 is bad:
Replace the memory chip
2-4-3:
Chip holding bit 14 is bad:
Replace the memory chip
2-4-2:
Chip holding bit 13 is bad:
Replace the memory chip
2-4-1:
Chip holding bit 12 is bad:
Replace the memory chip
2-3-3:
Chip holding bit 10 is bad:
Replace the memory chip
2-3-4:
Chip holding bit 11 is bad:
Replace the memory chip
2-3-2:
Chip holding bit 9 is bad:
Replace the memory chip
2-3-1:
Chip holding bit 8 is bad:
Replace the memory chip
2-2-3:
Chip holding bit 6 is bad:
Replace the memory chip
2-2-2:
Chip holding bit 5 & 7 is bad:
Replace the memory chip
2-2-4:
Chip holding bit 5 & 7 is bad:
Replace the memory chip
2-2-1:
Chip holding bit 4 is bad:
Replace the memory chip
2-1-4:
Chip holding bit 3 is bad:
Replace the memory chip
2-1-3:
Chip holding bit 2 is bad:
Replace the memory chip
2-1-2:
Chip holding bit 1 is bad:
Replace the memory chip
2-1-1:
Chip holding bit 0 is bad:
Replace the memory chip
1-4-4:
Port failure on EISA:
Replace Motherboard
1-4-3:
Fail safe timer failed:
Replace Motherboard
1-4-2:
Bad chip or motherboard:
Re-insert the memory chips or SIMMs
1-3-4:
Motherboard is bad:
Replace Motherboard
1-3-3:
First 64K is not responding to CPU:
Re-insert the memory chips or SIMMs
1-3-1:
Refresh failure:
Re-insert the memory chips or SIMMs
1-2-2:
DMA chip is bad:
Test for bad adapter card. If not bad, replace Motherboard
1-2-1:
Timer chip on Motherboard bad:
Replace Motherboard
1-1-4:
Damaged BIOS:
Replace BIOS
1-1-3:
Configuration in CMOS cannot be read:
Replace Motherboard