Dell Optiplex Beep Error Codes

Beep codes for the Dell OptiPlex are not always as cut and dry as the seem. Here is the Dell Provided Beep Codes however sometimes it does not match the problem and you need to further troubleshoot.

1. OptiPlex Beep Codes

The computer might emit a series of beeps during start-up if the display cannot show errors or problems. This series of beeps, called a beep code, can be used to help identify various problems

Diagnostic Beep Codes
Code Cause
1-1-2 Microprocessor register failure
1-1-3 NVRAM
1-1-4 ROM BIOS checksum failure
1-2-1 Programmable interval timer
1-2-2 DMA initialization failure
1-2-3 DMA page register read/write failure
1-3-1 through 2-4-4 DIMMs not being properly identified or used
3-1-1 Slave DMA register failure
3-1-2 Master DMA register failure
3-1-3 Master interrupt mask register failure
3-1-4 Slave interrupt mask register failure
3-2-2 Interrupt vector loading failure
3-2-4 Keyboard Controller Test failure
3-3-1 NVRAM power loss
3-3-2 NVRAM configuration
3-3-4 Video Memory Test failure
3-4-1 Screen initialization failure
3-4-2 Screen retrace failure
3-4-3 Search for video ROM failure
4-2-1 No time tick
4-2-2 Shutdown failure
4-2-3 Gate A20 failure
4-2-4 Unexpected interrupt in protected mode
4-3-1 Memory failure above address 0FFFFh
4-3-3 Timer-chip counter 2 failure
4-3-4 Time-of-day clock stopped
4-4-1 Serial or parallel port test failure
4-4-2 Failure to decompress code to shadowed memory
4-4-3 Math coprocessor test failure
4-4-4 Cache test failure


No what if you correct the problem but still have beep code problems? Here is todays TIP:

1. Pull all ram and video 

2. Use the onboard Clear CMOS Jumper ( Set to pin 2-3 and press the power button )

3. Place jumper back to 1-2

4. Insert Ram

5. Power on

Did it come on without beeps? Yes? Continue below

6. Power off system

7. Reinstall video Card

8. Power on System

9. Did you get beeps?

        Yes ? Repeat steps 1-5 and replace video card with new one.

        No? Great your all set!

One last mention would be if the above does not help you serious consideration would be to replace the board.