Acer TravelMate 420 Service Manual

Also see for TravelMate 420: Guía del usuario Manuel d'utilisation Guia do utilizador

Contents

Acer TravelMate 420 Service Manual Manual pdf 93 page image

Chapter 4 8502B1 Diskette drive B error Drive B: is present but fails the BIOS POST diskette tests.Check the drive is defined with the proper diskette type in BIOSSetup UtilityCheck if the diskette drive is attached correctly.See “External Diskette Drive Check” on page 78.02B2 Incorrect Drive A type - run SETUP Type of floppy drive A: not correctly identified in Setup.Main board02B2 Incorrect Drive B type - run SETUP Type of floppy drive B: not correctly identified in Setup.Main board02D0 System cache error - Cache disabled RAM cache failed and BIOS disabled the cache.On older boards, check the cache jummpers. You may have toreplace the cache.Main board02F0 CPU ID CPU socket number for Multi-Processor error.Main board02F4 EISA CMOS not writeable System unable to write to EISA CMOS.Main board02F5 DMA Test Failed System unable to write to DMA (Direct Memory Access) registers.Main board02F6 Software NMI Failed System unable to generate software NMI (Non-Maskable Interrupt).Main board02F7 Fail-Safe Timer NMI Failed Fail-Safe Timer takes too long.Main boardInvalid System Configuration Data Error with NVRAM (CMOS) data.Enter the BIOS Setup Utility and verify the parameters (try loadingthe default settings); then save and restart your computer.Main boardOperating system not found Operating system cannot be found on the boot device.Enter the BIOS Setup Utility and verify the parameters (try loadingthe default settings); then save and restart the computer.Recover hard disk.Reinstall the operating system.Parity Check 1 nnnn Parity error found on system bus. BIOS attempts to locate theaddress and display it on the screen. If it cannot locate the address,it displays.Parity Check 2 nnnn Parity error found on I/O bus. BIOS attempts to locate the addressand display it on the screen. If it cannot locate the address, itdisplays .Error Message ListError Messages FRU/Action in Sequence