63This section provides troubleshootinginformation for your computer. If you cannotsolve your problem using the followingguidelines, see “Using Support Tools” onpage 70 or “Contacting Dell” on page 93.WARNING: Only trained servicepersonnel should remove the computercover. See theService Manual atsupport.dell.com/manuals for advancedservice instructions.Beep CodesYour computer might emit a series of beepsduring start‑up if there are errors or problems.This series of beeps, called a beep code,identifies a problem. If this occurs, writedown the beep code and contact Dell (see“Contacting Dell” on page 93) for assistance.NOTE: To replace parts, see the ServiceManual at support.dell.com.BeepCode Possible ProblemOne Possible system board failure —BIOS ROM checksum failureTwo No RAM detectedNOTE: If you installed orreplaced the memory module,ensure that the memorymodule is seated properly.Three Possible system board failure —Chipset errorFour RAM read/write failureFive Real Time Clock failureSix Video card or chip failureSeven Processor failureEight Display failureSolving Problems
