Dell Vostro 2520 Owner's Manual

Also see for Vostro 2520: Setup and features information Setup and features information

Contents

• Light off — Battery in full charge mode with AC adapter present.• White light on — Battery in charge mode with AC adapter present.Device Status LightsTurns on when you turn on the computer and blinks when the computer is in a power management mode.Turns on when the computer reads or writes data.Turns on steadily or blinks to indicate battery charge status.Turns on when wireless networking is enabled.Diagnostic Beep CodesThe computer may emit a series of beeps during start-up if the display cannot show errors or problems. These series ofbeeps, called beep codes, identify various problems. The delay between each beep is 300 ms, the delay between eachset of beeps is 3 seconds, and the beep sound lasts 300 ms. After each beep and each set of beeps, the BIOS shoulddetect if the user presses the power button. If so, BIOS will jump out from looping and execute the normal shutdownprocess and power system.Code Cause and Troubleshooting Steps1 BIOS ROM checksum in progress or failureSystem board failure, covers BIOS corruption or ROM error2 No RAM detectedNo memory detected3 Chipset Error (North and South Bridge Chipset, DMA/IMR/ Timer Error) , Time-Of-Day Clock testfailure , Gate A20 failure , Super I/O chip failure , Keyboard controller test failureSystem board failure4 RAM Read/Write failureMemory failure5 Real-time clock power failCMOS battery failure6 Video BIOS test failureVideo card failure7 Processor failureProcessor failure8 DisplayDisplay failure48