NEC Express 120Mf Manuale Utente
4-8 Troubleshooting
Error Beep Codes
Beep Error
Cause
Troubleshooting
1-2-2-3 ROM checksum error
FMEM checksum error
Replace MotherBoard
1-3-1-1 DRAM refresh test error
Memory refresh error
Replace DIMM
1-3-1-3 Keyboard controller error
Keyboard controller
error
error
Replace MotherBoard
1-3-3-1 DIMM can not be detected
Memory not installed or
cannot write.
cannot write.
Check DIMM
Mounting or Replace
DIMM
Mounting or Replace
DIMM
1-3-3-1 Memory check error
↑
↑
1-3-4-3 DRAM test low byte error
Memory address signal
fault (low side)
fault (low side)
Replace MotherBoard
or DIMM
or DIMM
2-2-3-1 Unjust exception test error
Unjust exception
Replace MotherBoard
or CPU
or CPU
1-2 Video configuration fails
Expansion VGA BIOS
memory
memory
Deployment failure
Replace MotherBoard
or Graphic board
or Graphic board
1-2 OPTION ROM Checksum failure Expansion ROM BIOS
memory
Deployment failure
Replace MotherBoard
or Option board
or Option board