Solving Problems
•If available, install memory modules of the same type in your computer.
•If the problem persists, contact Dell (see “Contacting Dell” on page 55).
Three beeps — Possible motherboard failure
Contact Dell (see “Contacting Dell” on page 55).
Four beeps — RAM Read/Write failure
•Ensure that no special memory module/ memory connector placement requirements exist (see the Service Manual on the Dell Support website at support.dell.com).
•Verify that the memory modules that you are installing are compatible with your computer.
•If the problem persists, contact Dell (see “Contacting Dell” on page 55).
Five beeps — Real Time Clock Failure
Replace the battery.
Network Problems
Wireless Connections
If the wireless network connection is lost —
The wireless router is offline or wireless has been disabled on the computer.
•Check your wireless router to ensure it is powered on and connected to your data source (cable modem or network hub).
•Interference may be blocking or interrupting your wireless connection. Try moving the computer closer to your wireless router.
•
a.Save and close any open files, and exit any open programs.
b.Click Start 
→ Connect To.
c.Follow the instructions on the screen to complete the setup.
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