Acer Aspire 9300 Service Guide

81Chapter 4
Power-On Self-Test (POST) Error Message
The POST error message index lists the error message and their possible causes.
NOTE: Perform the FRU replacement or actions in the  sequence shown in Error Message List, if the FRU 
replacement does not solve the probl em, put the original part back in the computer. Do not replace a 
non-defective FRU.
The error messages are listed in the coming pages to indicate the BIOS signals on the screen and 
the error symptoms classified by functions. If the...

Chapter 482
Index of Error Messages
Error Message List
Error MessagesFRU/Action in Sequence
Struck Key See “Keyboard or Auxiliary Input Device Check“.
System CMOS checksum bad - 
Default configuration used RTC battery
Run BIOS Setup Utility to 
reconfigure system, then 
reboot system.
Real time clock error RTC battery Run BIOS Setup Utility to reconfigure system time, then 
reboot system.
Main board
Previous boot incomplete - Default 
configuration used “Load Default Settings” in BIOS Setup Utility.
RTC...

83Chapter 4
Phoenix BIOS Beep Codes
CodeBeepsPOST Routine Description
02h Verify Real Mode
03h Disable Non-Maskable Interrupt (NMI)
04h Get CPU type
06h Initialize system hardware
07h Disable shadow and execute code from  the ROM.
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...

Chapter 484
3Ah Autosize cache
3Ch Advanced configuration of chipset 
registers
3Dh Load alternate registers with CMOS  values
41h Initialize extended memory for  RomPilot.
42h Initialize interrupt vectors
45h POST device initialization
46h 2-1-2-3 Check ROM copyright notice
47h Initialize I20 support
48h Check video configuration against  CMOS
49h Initialize PCI bus and devices
4Ah Initialize all vi deo adapters in system
4Bh QuietBoot start (optional)
4Ch Shadow video BIOS ROM
4Eh Display BIOS...

85Chapter 4
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 Data Area
89h Enable Non-Maskable Interrupts...

Chapter 486
B1h Inform RomPilot about the end of 
POST.
B2h POST done- prepare to boot operating  system
B4h 1 One short beep before boot
B5h Terminate QuietBoot (optional)
B6h Check password (optional)
B7h Initialize ACPI BIOS
B9h Prepare Boot
BAh Initialize SMBIOS
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...

87Chapter 4
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
F5h Clear Huge Segment
F6h Boot to Mini DOS
F7h Boot to Full DOS
CodeBeepsPOST Routine Description 

Chapter 488
Index of Symptom-to-FRU Error Message
LCD-Related Symptoms
Symptom/ErrorAction in Sequence
LCD backlight doesnt 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 do 
not work).
LCD inverter ID
LCD cable
LCD inverter
LCD
System board
Unreadable LCD screen 
Missing pels in characters
Abnormal...

89Chapter 4
The system doesn’t 
power-off.Power source (battery pack and power adapter). See Power 
System Check”. 
Hold and press the power switch for more than 4 seconds. 
System board
Battery can’t be charged. See “Check the Battery Pack”.  Battery pack
System board
PCMCIA-Related Symptoms
Symptom/ErrorAction 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 / ErrorAction in...

Chapter 490
The system does not 
enter standby mode after 
closing the LCD.LCD cover switch
System board
The system does not 
resume from hibernation 
mode. Hard disk connection board
Hard disk drive
System board
The system does not 
resume from standby 
mode after opening the 
LCD. LCD cover switch
System board
Battery fuel gauge in 
Windows does not go 
higher than 90%.  Remove battery pack and let it cool for two hours.
Refresh battery (continue to us
e battery until power off, then 
charge...