Dell Inspiron 17R Reference Manual page 152

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Beep Codes
Your computer might emit a series of beeps during start-up if there are errors or problems. This series of beeps, called a beep code, identifies a problem. If
this occurs, note the beep code and contact Dell for assistance. The following table lists some of the common beep codes.
NOTE: Some of the beep codes mentioned in the table below may not apply to your computer.
Beep Codes Possible Problem
One Possible system board failure—BIOS ROM checksum failure
Two No RAM detected
NOTE: If you installed or replaced the memory module, ensure that the memory module is seated properly.
Three Possible system board failure—Chipset error
Four RAM read/write failure
Five Real Time Clock failure
Six Video card or chip failure
Seven Processor failure
NOTE: This beep code is supported for computers with Intel processor only.
Eight Display failure
Related Information
Invoking PSA
Enhanced Pre-Boot System Assessment (PSA)
Getting Help and Contacting Dell
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