Acer Aspire 5500 Service Manual

Also see for Aspire 5500: User guide Service guide User guide Guía del usuario Manuel d'utilisation

Contents

Acer Aspire 5500 Service Manual Manual pdf 72 page image

64 Chapter 4Insyde MobilePro BIOS POST Beep Code and POST MessagesThe POST error message index lists the error message and their possible causes. The most likely cause islisted first.NOTE: Perform the FRU replacement or actions in the sequence shown in FRU/Action column, if the FRUreplacement does not solve the problem, put the original part back in the computer. Do not replace anon-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, see “Undetermined Problems” on page 70.The following lists the error messages that the BIOS displays on the screen and the error symptoms classifiedby function.NOTE: Most of the error messages occur during POST. Some of them display information about a hardwaredevice, e.g., the amount of memory installed. Others may indicate a problem with a device, such as theway it has been configured.NOTE: If the system fails after you make changes in the BIOS Setup Utility menus, reset the computer, enterSetup and install Setup defaults or correct the error.Beep Code Message Descriptionshort, short, short; short,short, long“FAULTY DMA PAGE REGISTERS” DMA page registers do not function properly.short, short, short; short,long, short“FAULTY REFRESH CIRCUIT” RAM refresh circuit does not function properly.short, short, short; short,long, long“ROM CHECKSUM INCORRECT” BIOS ROM checksum failed.short, short, short; long,short, short“CMOS RAM TEST FAILED” CMOS RAM test failed.short, short, short; long,short, long“DMA CONTROLLER FAULTY” DMA controller does not work properly.short, short, short; long, longshort“INTERRUPT CONTROLLERFAILED”The interrupt controller does not work properly.short, short, short; long,long, longN/A Keyboard controller failed to respond with theself-test command.short, short, long; short,short, shortN/A No video device found.short, short, long; short,short, longN/A No RAM installed.N/A “KEYBOARD CONTROLLERFAILURE”Keyboard controller failed during system inquiryabout connected devices.N/A “KEYBOARD FAILURE” The keyboard fails to respond or no keyboard isconnected.N/A “CMOS FAILURE - RUN SCU” CMOS data error, probably due to battery powerloss.N/A “CMOS CHECKSUM INVALID - RUNSCU”CMOS checksum error.N/A “RAM ERROR AT LOCATION xxxxxx:WROTE: xxxxREAD: xxxx”The RAM failed during memory test at the indi-cated location.N/A “PARITY ERROR AT UNKNOWNLOCATION”Parity error during memory test at unknownlocation.N/A “PARITY ERROR AT LOCATIONXXXXXX”Parity error during memory test at the indicatedlocation.