Dell OptiPlex 320 DCNE, User Manual

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Troubleshooting Tools and Utilities: Dell OptiPlex 320 User's Guide
file:///N|/For_lekha/For%20Deepa/Nadia/UG/A00/en/nadia-temp-working-jul19/Nadia_UG_A00/Output/trouble.htm[5/22/2015 10:43:21 AM]
into your computer.
If the problem persists, contact Dell (see Contacting Dell ).
Memory modules are
detected, but a memory
configuration or compatibility
error exists.
Ensure that no special memory module/memory connector
placement requirements exist (see Memory ).
Verify that the memory modules that you are installing are
compatible with your computer (see Memory ).
If the problem persists, (see Contacting Dell ).
A failure has occurred.
This pattern also displays
when you enter system setup
and may not indicate a
problem (see System Setup ).
Ensure that the cables are properly connected to the system
board from the hard drive, CD drive, and DVD drive.
Check the computer message that appears on your monitor
screen.
If the problem persists, (see Contacting Dell ).
After POST is complete, all
four diagnostic lights turn
green briefly before turning
off to indicate normal
operating condition.
None.
Beep Codes
Your computer might emit a series of beeps during start-up if the monitor cannot display errors or problems. This series of
beeps, called a beep code, identifies a problem. One possible beep code (code 1-3-1) consists of one beep, a burst of three
beeps, and then one beep. This beep code tells you that the computer encountered a memory problem.
If your computer beeps during start-up:
1. Write down the beep code on the Diagnostics Checklist .
2. Run the Dell Diagnostics to identify a more serious cause (see Dell Diagnostics ).
3. Contact Dell for technical assistance (see Contacting Dell ).
Code Cause
1-1-2 Microprocessor register failure
1-1-3 NVRAM read/write failure
1-1-4 ROM BIOS checksum failure
1-2-1 Programmable interval timer failure
1-2-2 DMA initialization failure
1-2-3 DMA page register read/write failure
1-3 Video Memory test failure
1-3-1 through 2-4-4 Memory 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