Beep Codes - Dell GX280DT - GX280 Desktop Computer User Manual

A possible USB failure has
occurred.
No memory modules are detected.
Memory modules are detected, but
a memory configuration or
compatibility error exists.
Other failure has occurred.
The computer is in a normal
operating condition after POST.
Light Pattern Problem Description

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
2. Run the Dell Diagnostics to identify a more serious cause.
3. Contact Dell for technical assistance.
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
3-3-2 Invalid 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 timer tick
Reinstall all USB devices, check cable connections, and then restart the computer.
If you have one memory module installed, reinstall it and restart the computer. (see "Memory"
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for instructions on how to remove and install memory modules.)
If you have two or more memory modules installed, remove the modules, reinstall one module,
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and then restart the computer. If the computer starts normally, reinstall an additional module.
Continue until you have identified a faulty module or reinstalled all modules without error.
If available, install properly working memory of the same type into your computer.
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If the problem persists,
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Ensure that no
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Verify that the
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If the problem persists,
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Ensure that the cables are properly connected to the system board from the hard drive, CD
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drive, and DVD drive.
Check the computer message that appears on your monitor screen.
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If the problem persists,
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None.
Suggested Resolution
Diagnostics Checklist.
contact Dell.
special memory module/memory connector placement requirements
memory modules that you are installing are compatible with your computer.
contact Dell.
contact Dell.
exist.