Acer TravelMate 520 TravelMate 520 Service Guide - Page 77

Index of Error Message The symptom-to-FRU index lists the symptoms and errors and their possible causes. The most likely cause is listed first. NOTE: Perform the FRU replacement or actions in the sequence shown in FRU/Action column, if the FRU replacement does not solve the problem, put the original part back in the computer. Do not replace a non-defective FRU. This index can also help you determine the next possible FRU to be replaced when servicing a computer. If the symptom is not listed, "Undetermined Problems" on page 79. The following lists the error messages that the BIOS displays on the screen and the error symptoms classified by function. NOTE: Most of the error messages occur during POST. Some of them display information about a hardware device, e.g., the amount of memory installed. Others may indicate a problem with a device, such as the way it has been configured. NOTE: If the system fails after you make changes in the BIOS Setup Utility menus, reset the computer, enter Setup and install Setup defaults or correct the error Error Messages List Error Messages Failure Fixed Disk Stuck Key Keyboard error Keyboard Controller Failed Keyboard locked - Unlock key switch Monitor type does not match CMOS - Run Setup Shadow RAM Failed at offset: nnnn System RAM Failed at offset: nnnn Extended RAM Failed at offset: nnnn System battery is dead - Replace and run Setup System CMOS checksum bad - Default configuration used System timer error Real time clock error Previous boot incomplete - Default configuration used Action in Sequence Reconnect hard disk drive connector. "Load Default Settings" in BIOS Setup Utility. Hard disk drive System board "Keyboard or Auxiliary Input Device Check" . "Keyboard or Auxiliary Input Device Check". "Keyboard or Auxiliary Input Device Check". Unlock external keyboard. Run "Load Default Settings" in BIOS Setup Utility. BIOS ROM System board DIMM System board DIMM System board Replace RTC battery and Run BIOS Setup Utility to reconfigure system time, then reboot system. RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. System board RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. System board Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board Chapter 4 71