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Facilità d'uso
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) 108 Chapter 4 Code Beeps POST Routine Description 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 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 Code Beeps 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 Chapter 4 109 Code Beeps F5h Boot to Mini DOS F6h Clear Huge Segment F7h Boot to Full DOS 110 Chapter 4 Index of Symptom-to-FRU Error Message LCD-Related Symptoms Symptom / Error Action in Sequence LCD backlight doesn't work LCD is too dark LCD brightness cannot be adjusted LCD contrast cannot be adjusted Enter BIOS Utility to execute “Load Setup Default Settings”, then reboot system. Reconnect the LCD connectors. Keyboard (if contrast and brightness function key doesn't work). LCD inverter ID LCD cable LCD inverter LCD System board Unreadable LCD screen Reconnect the LCD connector Missing pels in characters LCD inverter ID Abnormal screen LCD cable Wrong color displayed LCD inverter LCD System board LCD has extra horizontal or vertical lines displayed. LCD inverter ID LCD inverter LCD cable LCD System board Indicator-Related Symptoms Symptom / Error Action in Sequence Indicator incorrectly remains off or on, but system runs correctly Reconnect the inverter board Inverter board System board Power-Related Symptoms Symptom / Error Action in Sequence Power shuts down during operation Power source (battery pack and power adapter). See “Power System Check” on page 99. 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 99. Battery pack Power adapter Hard drive & battery connection board System board Chapter 4 111 Power-Related Symptoms Symptom / Error Action in Sequence The system doesn’t power-off. Power source (battery pack and power adapter). See “Power System Check” on page 99. 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 101. Battery pack System board PCMCIA-Related Symptoms Symptom / Error Action in Sequence System cannot detect the PC Card (PCMCIA) PCMCIA slot assembly System board PCMCIA slot pin is damaged. PCMCIA slot assembly Memory-Related Symptoms Symptom / Error Action 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 Speaker-Related Symptoms Symptom / Error Action 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 Power Management-Related Symptoms Symptom / Error Action in Sequence The system will not enter hibernation See “Save to Disk (S4)” on page 32. Keyboard (if control is from the keyboard) Hard disk drive System board The system doesn't 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 LCD See “Save to Disk (S4)” on page 32. LCD cover switch System board 112 Chapter 4 Power Management-Related Symptoms Symptom / Error Action in Sequence The system doesn't resume from hibernation mode. See “Save to Disk (S4)” on page 32. Hard disk connection board Hard disk drive System board The system doesn't resume from standby ...
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