Beep Code; Error Messages - Dell Precision Tower 3420 Owner's Manual

Amber LED Description
State
2,1 system board failure
2,2 system board, PSU or PSU cabling failure
2,3 system board, memory or CPU failure
2, 4 coin-cell battery failure
2,5 corrupt BIOS
2,6 CPU configuration failure or CPU failure
2,7 memory modules are detected, but a memory failure
3,1 possible peripheral card or system board failure
3,2 possible USB failure
3,3 no memory modules are detected
3,4 possible system board error
3,5 memory modules are detected, but a memory configuration or compatibility error
3,6 possible system board resource and/or hardware failure
3,7 some other failure with messages on screen

Beep Code

The computer can emit a series of beeps during start-up if the display does not show errors or problems.
These series of beeps, called beep codes, identify various problems. The delay between each beep is 300
ms, the delay between each set of beeps is 3 sec, and the beep sound lasts 300 ms. After each beep and
each set of beeps, the BIOS should detect if the user presses the power button. If so, BIOS will jump out
from looping and execute the normal shutdown process and power system.
Code 1-3-2
Cause Memory failure

Error Messages

Error Message Description
Address mark not The BIOS found a faulty disk sector or could not find a particular disk sector.
found
Alert! Previous The computer failed to complete the boot routine three consecutive times for the
attempts at same error. Contact Dell and report the checkpoint code (nnnn) to the support
booting this technician
system have failed
at checkpoint
[nnnn]. For help in
resolving this
problem, please
40