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| A possible graphics card failure has occurred. | • If the computer has a graphics card, remove the card, reinstall it and then restart |
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| the computer. |
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| • If the problem still exists, install a graphics card that you know works and restart |
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| the computer. |
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| • If the problem persists or the computer has integrated graphics, contact Dell (see |
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| your computer Owner's Manual for information about contacting Dell). |
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| A possible floppy or hard drive failure has | Reseat all power and data cables and restart the computer. |
| occurred. |
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| A possible USB failure has occurred. | Reinstall all USB devices, check cable connections, and then restart the computer. |
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| No memory modules are detected. | • If you have two or more memory modules installed, remove the modules, reinstall |
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| one module, and then restart the computer. If the computer starts normally, reinstall |
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| an additional module. Continue until you have identified a faulty module or reinstalled |
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| all modules without error. |
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| • If available, install properly working memory of the same type into your computer. |
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| • If the problem persists, contact Dell (see your computer Owner's Manual for |
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| information about contacting Dell). |
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| Memory modules are detected, but a | • Ensure that no special memory module/memory connector placement requirements |
| memory configuration or compatibility error | exist (see "Memory"). |
| exists. | • Verify that the memory modules that you are installing are compatible with your |
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| computer (see "Memory"). |
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| • If the problem persists, contact Dell (see your computer Owner's Manual for |
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| information about contacting Dell). |
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| A possible expansion card failure has | 1. Determine if a conflict exists by removing a card (not a graphics card) (see "Cards") |
| occurred. | and restarting the computer. |
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| 2. If the problem persists, reinstall the card that you removed, remove a different card, |
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| and then restart the computer. |
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| 3. Repeat this process for each card. If the computer starts normally, troubleshoot the |
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| last card removed from the computer for resource conflicts (see "Resolving Software |
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| and Hardware Incompatibilities" in your computer Owner's Manual). |
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| 4. If the problem persists, contact Dell (see your computer Owner's Manual for |
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| information about contacting Dell). |
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| Another failure has occurred. | • Ensure that the cables are properly connected to the system board from the hard |
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| drive, CD drive, and DVD drive. |
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| • If there is an error message on your screen identifying a problem with a device (such |
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| as the floppy drive or hard drive), check the device to make sure it is functioning |
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| properly. |
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| • The operating system is attempting to boot from a device (such as the floppy drive |
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| or hard drive); check system setup to ensure that the boot sequence is correct for |
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| the devices installed on your computer. |
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| • If the problem persists, contact Dell (see your computer Owner's Manual for |
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| information about contacting Dell). |
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| The computer is in a normal operating | None. |
| condition after POST. |
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| NOTE: The diagnostic lights are not lit after |
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| the system successfully boots to the |
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| operating system. |
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Beep Codes
Your computer might emit a series of beeps during
Code | Cause |
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Microprocessor register failure | |
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NVRAM read/write failure | |
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ROM BIOS checksum failure | |
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Programmable interval timer failure | |
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DMA initialization failure | |
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DMA page register read/write failure | |
Video Memory Test failure | |
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Memory not being properly identified or used | |
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Slave DMA register failure | |
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Master DMA register failure | |
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Master interrupt mask register failure | |
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