Slave interrupt mask register failure. See “Contacting Dell” in your Owner’s Manual for instructions on obtaining technical assistance. Your computer might emit a series of beeps during start-up if the monitor cannot display errors or problems. Reinstall all memory modules and restart the computer. The keyboard or system board may need to be replaced. If the computer malfunctions, the color and sequence of the lights identify the problem. The BIOS cannot communicate with the floppy drive or hard drive controller.
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Continue until you have identified a faulty connector or reinstalled all modules without error. Master interrupt mask register failure. Memory modules are detected, but a memory failure has occurred.
Reinstall all memory modules and restart the computer. Ensure that nothing is resting on the keyboard; if a key dimenaion to be stuck, carefully pry it up.
An error in the address decoding circuitry in the memory has occurred. Reseat all power and data cables and restart the computer. A possible expansion card failure dimensikn occurred.
Search for video ROM failure.
Repeat this process for each card. Before you begin any of the procedures in this section, follow the safety instructions in your Owner’s Manual. Reseating the memory modules may fix the beep code errors in the following table. Videi operating system cannot be located on drive A or drive C.
If the problem persists or the computer has integrated video, see “Contacting Dell” in your Owner’s Manual. Keyboard Controller Test failure.
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If the computer starts normally, reinstall an additional module. The computer is in a normal operating condition after POST. If the videp has a video card, remove the card and reinstall it viideo, and restart the computer. Enter the system setup programverify the system configuration, and then restart the computer. Ensure that the floppy drive or the hard drive is installed correctly in the computer and defined correctly in the system setup program.
After the computer starts, the lights remain green. Memory not being properly identified or used. Ensure that the drive is installed correctly in the computer and defined correctly in 6400c system setup program. Ensure that the cables are properly connected from the hard drive, CD drive, and DVD drive to the system board. Determine if a conflict exists by removing a card and then restarting the computer.
Error in the DMA controller on the system board. This beep code tells you that the computer encountered a memory problem.
Advanced Troubleshooting: Dell Dimension Series Service Manual
If you receive this message after you make changes in the system setup program, enter the system setup program and restore the original value s.
Verify that the memory modules that you are installing are compatible with your computer.
One possible beep code code consists of one beep, a burst of three beeps, and then one beep. Enter the system setup program and confirm that drive A or drive C is properly identified.
Determine if a conflict exists by removing a card not the video card and then restarting the computer. Master DMA register failure. To help you troubleshoot a problem, your computer is equipped with four lights on the back panel labeled “A,” “B,” “C,” and “D.
A possible video card failure has occurred.