41This section provides troubleshootinginformation for your computer. If you cannotsolve your problem using the followingguidelines, see “Using Support Tools” onpage 48 or “Contacting Dell” on page 72.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 beeps duringstart‑up if there are errors or problems. This seriesof beeps, called a beep code, identifies a problem.Write down the beep code and contact Dell (see“Contacting Dell” on page 72).NOTE: To replace parts, see theServiceManual at support.dell.com/manuals.Beep Code Possible ProblemOne Possible system board failure —BIOS ROM checksum failureTwo No RAM detectedNOTE: If you installed orreplaced the memory module,ensure that the memory moduleis 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 ProblemsINSPIRON