Post Error Codes And Messages - Acer Altos G520 Service Manual

POST Error Codes and Messages

During POST after the video has been initialized, the BIOS outputs the current boot progress codes on the
video screen. Progress codes are 32 bit quantities plus optional data. The 32 bit numbers include class,
subclass, and operation information. Class and subclass point to the type of the hardware that is being
initialized. Operation represents the specific initialization activity.
Based on the data bit availability to display the progress code, a progress code can be customized to fit the
data width.The higher the data bit, higher the granularity of allowable information. Progress codes may be
reported by system BIOS or option ROMs.
Warning : The message is displayed on screen and the error is logged to the SEL. The system will continue
booting with a degraded state.
Pause : The message is displayed on the screen and the boot process is paused until the appropriate input
is given to either continue the boot process or take corrective action.
Halt : The system cannot boot unless the error is corrected.
Error Code
0000 Timer Error
0003 CMOS Battery Low
0004 CMOS Settings Wrong
0005 CMOS Checksum Bad
0008 Unlock Keyboard
0009 PS2 Keyboard not found
000A KBC BAT Test failed
000B CMOS memory size different
000C RAM R/W test failed
000E A: Drive Error
000F B: Drive Error
0010 Floppy Controller Failure
0012 CMOS time not set
0014 PS2 Mouse not found
0040 Refresh timer test failed
0041 Display memory test failed
0042 CMOS Display Type Wrong
0043 ~<INS> Pressed
0044 DMA Controller Error
0045 DMA-1 Error
0046 DMA-2 Error
0047 Unknown BIOS error. Error code = 147 (this is really a
PMM_MEM_ALLOC_ERR)
0048 Password check failed
0049 Unknown BIOS error. Error code = 149 (this is really
SEGMENT_REG_ERR)
004A Unknown BIOS error. Error code = 14A (this is really
ADM_MODULE_ERR)
67
Error Message Response
Pause
Pause
Pause
Pause
Halt
Not an error
Halt
Pause
Pause
Pause
Pause
Pause
Pause
Not an error
Halt
Pause
Pause
Pause
Halt
Halt
Halt
Halt
Halt
Halt
Pause
Altos G520