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Dell Latitude 3540 Owner's Manual

Beep Codes

The computer may emit a series of beeps during start-up if the display cannot 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 seconds, 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
Cause and Troubleshooting Steps
1
BIOS ROM checksum in progress or failure

System board failure, covers BIOS corruption or ROM error

2
No RAM detected

No memory detected

3
Chipset Error (North and South Bridge Chipset, DMA/IMR/ Timer Error) , Time-Of-Day Clock test failure , Gate A20 failure , Super I/O chip failure , Keyboard controller test failure

System board failure

4
RAM Read/Write failure

Memory failure

5
Real-time clock power fail

CMOS battery failure

6
Video BIOS test failure

Video card failure

7
CPU - cache test failure

Processor failure

8
Display

Display failure


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