Acer Aspire 5520 Aspire 5220/5520/5520G Service Guide - Page 86

Error Message List Error Messages Real time clock error Previous boot incomplete - Default configuration used Memory size found by POST differed from CMOS Diskette drive A error Incorrect Drive A type - run SETUP System cache error - Cache disabled CPU ID: DMA Test Failed Software NMI Failed Fail-Safe Timer NMI Failed Device Address Conflict Allocation Error for device Failing Bits: nnnn Fixed Disk n Invalid System Configuration Data I/O device IRQ conflict Operating system not found FRU/Action in Sequence 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 Run "Load Default Settings" in BIOS Setup Utility. DIMM System board Check the drive is defined with the proper diskette type in BIOS Setup Utility See "External Diskette Drive Check" on page 87. Check the drive is defined with the proper diskette type in BIOS Setup Utility System board System board DIMM System board DIMM System board DIMM System board Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board DIMM BIOS ROM System board None BIOS ROM System board Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board Enter Setup and see if fixed disk and drive A: are properly identified. Diskette drive Hard disk drive System board 93 Chapter 4