Hello albrandwood,

Welcome to the Dell Community Forum,

The following list shows the beep codes that are for the Latitude LT, If none apply try running a Diagnostic on the system to help determine problem If possible.

Beep Code           Description

1-2-2-3                  Rom Bios checksum failure

1-3-1-1                  DRAM refresh failure.Run the System Test Group in  Dell Diagnostics

1-3-1-3                  Keyboard Controller test failure.Run the Keyboard Controller Test in Dell Diags.

1-3-4-1                  RAM failure on address line nnnn.Run the RAM Test Group in Dell Diags.

1-3-4-3                  RAM failure on data bits nnnn of the high byte on the memory bus.Run the RAM Test Group.

1-4-1-1                  Ram failure on data bits nnnn of the low byte on the memory bus.

2-1-2-3                  Check Rom copyright notice failure.Run the System Set Test Group in Dell Diags.

2-2-3-1                  Interrupt mask register Failure

Hope that this helps.

Thanks,