Chapter 4 94Battery can’t be charged or discharged See “Check the Battery Pack” on page 85.Battery packMain boardSystem hang during POST ODD/HDD/FDD/RAM moduleMain boardPCMCIA-Related SymptomsSymptom / Error Action in SequenceSystem cannot detect the PC Card (PCMCIA) PCMCIA slot assemblyMain boardPCMCIA slot pin is damaged. PCMCIA slot assemblyPC Card cannot be inserted or ejected Check if the PCMCIA slot is blockedMain boardMemory-Related SymptomsSymptom / Error Action in SequenceMemory count (size) appears different fromactual size.Enter BIOS Setup Utility to execute “Load Default Settings” thenreboot system.RAM moduleMain boardCheck BIOS revisionSystem can power on, but you hear two longbeeps: “B--, B--” and the LCD is blank.Reinsert DIMMDIMMMain boardSpeaker-Related SymptomsSymptom / Error Action in SequenceIn Windows, multimedia programs, no soundcomes from the computer.OS volume controlAudio driverSpeakerMain boardInternal speakers make noise or emit no sound. SpeakerMain boardMicrophone cannot work Audio driverVolume control in Windows XPMain boardPower Management-Related SymptomsSymptom / Error Action in SequenceThe system will not enter hibernation mode Power option in Windows XPHard disk driveMain boardThe system doesn’t enter standby mode afterclosing the lid of the portable computer.Driver of Power Option PropertiesLid close switch in upper caseMain boardPower-Related SymptomsSymptom / Error Action in Sequence