Dell Vostro 470 Owner's Manual

Also see for Vostro 470: Setup and features information Quick guide

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Dell Vostro 470 Owner's Manual Manual pdf 56 page image

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 error.2 No RAM detected.No memory detected3 Chipset Error (North and South Bridge Chipset, DMA/IMR/ Timer Error) , Time-Of-Day Clock test failure , GateA20 failure , Super I/O chip failure , Keyboard controller test failure.System board failure.4 RAM Read/Write failure.Memory failure.5 Real-time clock power fail.CMOS battery failure.6 Video BIOS test failure.Video card failure.7 Processor failure.Processor failure.System MessagesIf your computer has an issue or error, it may display a System Message that will help you identify the cause and actionneeded to resolve the issue.NOTE: If the message received is not listed in the following examples, see the documentation for either theoperating system or the program that was running when the message appeared.Table 9. System MessagesSystem Message DescriptionAlert! Previous attempts at booting this system have failed atcheckpoint [nnnn]. For help in resolving this problem, pleasenote this checkpoint and contact Dell Technical SupportThe computer failed to complete the boot routinethree consecutive times for the same error.CMOS checksum error Possible motherboard failure or RTC battery low.CPU fan failure CPU fan has failed.System fan failure System fan has failed.Hard-disk drive failure Possible hard disk drive failure during POST.56