Symptom-to-FRU indexThis section contains following information:v “Numeric error codes”v “Error messages” on page 66v “No-beep symptoms” on page 66v “LCD-related symptoms” on page 67v “Intermittent problems” on page 68v “Undetermined problems” on page 68The symptom-to-FRU index in this section lists symptoms and errors and theirpossible causes. The most likely cause is listed first, in boldface type.Note: Do the FRU replacement or other actions in the sequence shown in thecolumn headed “FRU or action, in sequence.” If replacing a FRU does not solvethe problem, put the original part back in the computer. Do not replace anondefective FRU.This index can also help you determine, during regular servicing, what FRUs arelikely to need to be replaced next.A numeric error is displayed for each error detected in POST or system operation.In the displays, n can be any number.If no numeric code is displayed, check the narrative descriptions of symptoms. Ifthe symptom is not described there, go to “Intermittent problems” on page 68.Numeric error codesTable 2. Numeric error codesSymptom or error (beeps, if any) FRU or action, in sequence0187EAIA data access error—The access toEEPROM is failed.(two short beeps)System board.0189Invalid RFID configuration informationarea—The EEPROM checksum is not correct.(two short beeps)System board.0190Critical low-battery error(two short beeps)1. Charge the battery pack.2. Battery pack.0191System Security—Invalid Remote Changerequested.1. Run BIOS Setup Utility, and then savecurrent setting by pressing F10.2. System board.0210Stuck Key(two short beeps)Change keyboard, and restart the computer.Note:For a device not supported by diagnostic codes in the ThinkPad Notebooks, seethe manual for that device.Related service information 63