Beep codes – Dell Vostro 420 (Late 2008) User Manual
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Troubleshooting
–
Ensure that the voltage selection switch is set to match the AC power
at your location, if applicable.
–
Ensure that the processor power cable is securely connected to the
system board (see "System Board Components" on page 40).
•
If the power light is steady amber, a device may be malfunctioning or
incorrectly installed.
–
Remove and then reinstall the memory modules (see "Replacing or
Adding a Memory Module" on page 104).
–
Remove and then reinstall any cards (see "PCI and PCI Express Cards"
on page 59).
•
Eliminate interference. Some possible causes of interference are:
–
Power, keyboard, and mouse extension cables
–
Too many devices on a power strip
–
Multiple power strips connected to the same electrical outlet
Beep Codes
Your computer may emit a series of beeps during start-up if the monitor
cannot display errors or problems. For example, one possible beep code may
consist of three short, repeated beeps indicating that the computer has
encountered a possible system board failure.
If your computer emits a series of beeps during start-up:
1 Write down the beep code.
2 Run the Dell Diagnostics to further identify the problem. (see "Dell
Code (repetitive
short beeps)
Description
Suggested Resolution
1
BIOS checksum
failure. Possible system
board failure.