Acer Aspire 3810tg Service Guide
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Chapter 463 Power-On Self-Test (POST) Error Message The POST error message index lists the error message 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, see “Undetermined Problems” on page 75. 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.
64Chapter 4 Index of Error Messages Error Code List Error Message List Error CodesError Messages 006 Equipment Configuration Error Causes: 1. CPU BIOS Update Code Mismatch. 2. IDE Primary Channel Master Drive Error. (THe causes will be shown before “Equipment Configuration Error”). 010 Memory Error at xxxx:xxxx:xxxxh (R:xxxxh, W:xxxxh) . 070 Real Time Clock Error. 071 CMOS Battery Bad. 072 CMOS Checksum Error. 110 System disabled Incorrect password is specified. Battery critical LOW. In this situation BIOS will issue 4 short beeps then shut down system, no message will show. Thermal critical High. In this situation BIOS will shut down system, not show message. Error MessagesFRU/Action in Sequence Failure Fixed Disk Reconnect hard disk drive connector. “Load Default Settings” in BIOS Setup Utility. Hard disk drive System board Stuck Key See “Keyboard or Auxiliary Input Device Check” on page 60. Keyboard error See Keyboard or Auxiliary Input Device Check on page 60. Keyboard Controller Failed See Keyboard or Auxiliary Input Device Check on page 60. Keyboard locked - Unlock key switch Unlock external keyboard. Monitor type does not match CMOS - Run SetupRun “Load Default Settings” in BIOS Setup Utility. Shadow RAM Failed at offset: nnnn BIOS ROM System board System RAM Failed at offset: nnnn DIMM System board Extended RAM Failed at offset: nnnn DIMM System board
Chapter 465 System battery is dead - Replace and run SetupReplace RTC battery and Run BIOS Setup Utility to reconfigure system time, then reboot system. System CMOS checksum bad - Default configuration usedRTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. System timer error RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. System board Real time clock error RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. System board Previous boot incomplete - Default configuration usedRun “Load Default Settings” in BIOS Setup Utility. RTC battery System board Memory size found by POST differed from CMOSRun “Load Default Settings” in BIOS Setup Utility. DIMM System board Diskette drive A error Check the drive is defined with the proper diskette type in BIOS Setup Utility. See “External Diskette Drive Check” on page 60. Incorrect Drive A type - run SETUP Check the drive is defined with the proper diskette type in BIOS Setup Utility. System cache error - Cache disabled System board CPU ID: System board DMA Test Failed DIMM System board Software NMI Failed DIMM System board Fail-Safe Timer NMI Failed DIMM System board Device Address Conflict Run “Load Default Settings” in BIOS Setup Utility. RTC battery System board Allocation Error for device Run “Load Default Settings” in BIOS Setup Utility. RTC battery System board Failing Bits: nnnn DIMM BIOS ROM System board Fixed Disk n None Error MessagesFRU/Action in Sequence
66Chapter 4 Error Message List Invalid System Configuration Data BIOS ROM System board I/O device IRQ conflict Run “Load Default Settings” in BIOS Setup Utility. RTC battery System board Operating system not found Enter Setup and see if fixed disk and drive A are properly identified. Diskette drive Hard disk drive System board No beep Error MessagesFRU/Action in Sequence No beep, power-on indicator turns off and LCD is blank.Power source (battery pack and power adapter). See “Power System Check” on page 61. Ensure every connector is connected tightly and correctly. Reconnect the DIMM. LED board System board No beep, power-on indicator turns on and LCD is blank.Power source (battery pack and power adapter). See “Power System Check” on page 61. Reconnect the LCD connector. Hard disk drive LCD inverter ID LCD cable LCD Inverter LCD System board No beep, power-on indicator turns on and LCD is blank. But you can see POST on an external CRT. Reconnect the LCD connectors. LCD inverter ID LCD cable LCD inverter LCD System board No beep, power-on indicator turns on and a blinking cursor shown on LCD during POST.Ensure every connector is connected tightly and correctly. System board No beep during POST but system runs correctly.Speaker System board Error MessagesFRU/Action in Sequence
Chapter 467 InsydeH2O BIOS Beep Codes CodeBeepsPOST Routine Description 02h Verify Real Mode 03h Disable Non-Maskable Interrupt (NMI) 04h Get CPU type 06h Initialize system hardware 08h Initialize chipset with initial POST values 09h Set IN POST flag 0Ah Initialize CPU registers 0Bh Enable CPU cache 0Ch Initialize caches to initial POST values 0Eh Initialize I/O component 0Fh Initialize the local bus IDE 10h Initialize Power Management 11h Load alternate registers with initial POST values 12h Restore CPU control word during warm boot 13h Initialize PCI Bus Mastering devices 14h Initialize keyboard controller 16h 1-2-2-3 BIOS ROM checksum 17h Initialize cache before memory autosize 18h 8254 timer initialization 1Ah 8237 DMA controller initialization 1Ch Reset Programmable Interrupt Controller 20h 1-3-1-1 Test DRAM refresh 22h 1-3-1-3 Test 8742 Keyboard Controller 24h Set ES segment register to 4 GB 26h Enable A20 line 28h Autosize DRAM 29h Initialize POST Memory Manager 2Ah Clear 215 KB base RAM 2Ch 1-3-4-1 RAM failure on address line xxxx 2Eh 1-3-4-3 RAM failure on data bits xxxx of low byte of memory bus 2Fh Enable cache before system BIOS shadow 30h 1-4-1-1 RAM failure on data bits xxxx of high byte of memory bus 32h Test CPU bus-clock frequency 33h Initialize InsydeH2O Dispatch Manager 36h Warm start shut down 38h Shadow system BIOS ROM 3Ah Autosize cache 3Ch Advanced configuration of chipset registers 3Dh Load alternate registers with CMOS values 42h Initialize interrupt vectors
68Chapter 4 45h POST device initialization 46h 2-1-2-3 Check ROM copyright notice 48h Check video configuration against CMOS 49h Initialize PCI bus and devices 4Ah Initialize all video adapters in system 4Bh QuietBoot start (optional) 4Ch Shadow video BIOS ROM 4Eh Display BIOS copyright notice 50h Display CPU type and speed 51h Initialize EISA board 52h Test keyboard 54h Set key click if enabled 58h 2-2-3-1 Test for unexpected interrupts 59h Initialize POST display service 5Ah Display prompt “Press F2 to enter SETUP” 5Bh Disable CPU cache 5Ch Test RAM between 512 and 640 KB 60h Test extended memory 62h Test extended memory address lines 64h Jump to User Patch1 66h Configure advanced cache registers 67h Initialize Multi Processor APIC 68h Enable external and CPU caches 69h Setup System Management Mode (SMM) area 6Ah Display external L2 cache size 6Bh Load custom defaults (optional) 6Ch Display shadow-area message 6Eh Display possible high address for UMB recovery 70h Display error messages 72h Check for configuration errors 76h Check for keyboard errors 7Ch Set up hardware interrupt vectors 7Eh Initialize coprocessor if present 80h Disable onboard Super I/O ports and IRQs 81h Late POST device initialization 82h Detect and install external RS232 ports 83h Configure non-MCD IDE controllers 84h Detect and install external parallel ports 85h Initialize PC-compatible PnP ISA devices 86h Re-initialize onboard I/O ports 87h Configure Motherboard Configurable Devices (optional) 88h Initialize BIOS Area 89h Enable Non-Maskable Interrupts (NMIs) CodeBeepsPOST Routine Description
Chapter 469 8Ah Initialize Extended BIOS Data Area 8Bh Test and initialize PS/2 mouse 8Ch Initialize floppy controller 8Fh Determine number of ATA drives (optional) 90h Initialize hard-disk controllers 91h Initialize local-bus hard-disk controllers 92h Jump to UserPatch2 93h Build MPTABLE for multi-processor boards 95h Install CD ROM for boot 96h Clear huge ES segment register 97h Fixup Multi Processor table 98h 1-2 Search for option ROMs. One long, two short beeps on checksum failure. 99h Check for SMART drive (optional) 9Ah Shadow option ROMs 9Ch Set up Power Management 9Dh Initialize security engine (optional) 9Eh Enable hardware interrupts 9Fh Determine number of ATA and SCSI drives A0h Set time of day A2h Check key lock A4h Initialize Typematic rate A8h Erase F2 prompt AAh Scan for F2 key stroke ACh Enter SETUP AEh Clear Boot flag B0h Check for errors B2h POST done- prepare to boot operating system B4h 1 One short beep before boot B5h Terminate QuietBoot (optional) B6h Check password (optional) B9h Prepare Boot BAh Initialize DMI parameters BBh Initialize PnP Option ROMs BCh Clear parity checkers BDh Display MultiBoot menu BEh Clear screen (optional) BFh Check virus and backup reminders C0h Try to boot with INT 19 C1h Initialize POST Error Manager (PEM) C2h Initialize error logging C3h Initialize error display function C4h Initialize system error handler CodeBeepsPOST Routine Description
70Chapter 4 C5h PnPnd dual CMOS (optional) C6h Initialize notebook docking (optional) C7h Initialize notebook docking late C8h Force check (optional) C9h Extended checksum (optional) D2h Unknown interrupt E0h Initialize the chipset E1h Initialize the bridge E2h Initialize the CPU E3h Initialize the system timer E4h Initialize system I/O E5h Check force recovery boot E6h Checksum BIOS ROM E7h Go to BIOS E8h Set Huge Segment E9h Initialize Multi Processor EAh Initialize OEM special code EBh Initialize PIC and DMA ECh Initialize Memory type EDh Initialize Memory size EEh Shadow Boot Block EFh System memory test F0h Initialize interrupt vectors F1h Initialize Run Time Clock F2h Initialize video F3h Initialize System Management Mode F4h 1 Output one beep before boot F5h Boot to Mini DOS F6h Clear Huge Segment F7h Boot to Full DOS CodeBeepsPOST Routine Description
Chapter 471 Index of Symptom-to-FRU Error Message LCD-Related Symptoms Indicator-Related Symptoms Power-Related Symptoms Symptom / ErrorAction in Sequence LCD backlight doesnt work LCD is too dark LCD brightness cannot be adjusted LCD contrast cannot be adjustedEnter BIOS Utility to execute “Load Setup Default Settings”, then reboot system. Reconnect the LCD connectors. Keyboard (if contrast and brightness function key doesnt work). LCD inverter ID LCD cable LCD inverter LCD System board Unreadable LCD screen Missing pels in characters Abnormal screen Wrong color displayedReconnect the LCD connector. LCD inverter ID LCD cable LCD inverter LCD System board LCD has extra horizontal or vertical lines displayedLCD inverter ID LCD inverter LCD cable LCD System board Symptom / ErrorAction in Sequence Indicator incorrectly remains off or on, but system runs correctlyReconnect the inverter board. Inverter board System board Symptom / ErrorAction in Sequence Power shuts down during operation Power source (battery pack and power adapter). See “Power System Check” on page 61. Battery pack Power adapter Hard drive & battery connection board. System board The system doesn’t power-on. Power source (battery pack and power adapter). See “Power System Check” on page 61. Battery pack Power adapter Hard drive & battery connection board. System board
72Chapter 4 PCMCIA-Related Symptoms Memory-Related Symptoms Speaker-Related Symptoms Power Management-Related Symptoms The system doesn’t power-off. Power source (battery pack and power adapter). See “Power System Check” on page 61. Hold and press the power switch for more than 4 seconds. System board Battery can’t be charged See “Check the Battery Pack” on page 61. Battery pack System board Symptom / ErrorAction in Sequence System cannot detect the PC Card (PCMCIA) PCMCIA slot assembly System board PCMCIA slot pin is damaged. PCMCIA slot assembly Symptom / ErrorAction in Sequence Memory count (size) appears different from actual size.Enter BIOS Setup Utility to execute “Load Default Settings, then reboot system. DIMM System board Symptom / ErrorAction in Sequence In Windows, multimedia programs, no sound comes from the computer. Audio driver Speaker System board Internal speakers make noise or emit no sound.Speaker System board Symptom / ErrorAction in Sequence The system will not enter hibernation Keyboard (if control is from the keyboard) Hard disk drive System board The system doesnt enter hibernation mode and four short beeps every minute.Press Fn+ o and see if the computer enters hibernation mode. Touchpad Keyboard Hard disk connection board. Hard disk drive System board The system doesn’t enter standby mode after closing the LCDLCD cover switch System board Symptom / ErrorAction in Sequence