Acer Altos G520 Altos G520 Service Guide - Page 76

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 0003 0004 0005 0008 0009 000A 000B 000C 000E 000F 0010 0012 0014 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A Error Message Timer Error CMOS Battery Low CMOS Settings Wrong CMOS Checksum Bad Unlock Keyboard PS2 Keyboard not found KBC BAT Test failed CMOS memory size different RAM R/W test failed A: Drive Error B: Drive Error Floppy Controller Failure CMOS time not set PS2 Mouse not found Refresh timer test failed Display memory test failed CMOS Display Type Wrong ~ Pressed DMA Controller Error DMA-1 Error DMA-2 Error Unknown BIOS error. Error code = 147 (this is really a PMM_MEM_ALLOC_ERR) Password check failed Unknown BIOS error. Error code = 149 (this is really SEGMENT_REG_ERR) Unknown BIOS error. Error code = 14A (this is really ADM_MODULE_ERR) 67 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