Acer Aspire M5811 Aspire M5811 Desktop Series Service Guide - Page 60

Message Displayed CMOS Settings Wrong CMOS Checksum Bad Description CMOS settings are invalid. This error can be resolved by using AMIBIOS Setup. CMOS contents failed the Checksum check. Indicates that the CMOS data has been changed by a program other than the BIOS or that the CMOS is not retaining its data due to malfunction. This error can typically be resolved by using AMIBIOS Setup. Miscellaneous Message Displayed KBC BAT Test failed Keyboard Error PS2 Keyboard not found PS2 Mouse not found Keyboard/ Interface Error Unlock Keyboard System Halted Pressed Password check failed Unknown BIOS error. Error code = 004Ah Unknown BIOS error. Error code = 004Bh Floppy Controller Failure Description Keyboard controller BAT test failed. This may indicate a problem with keyboard controller initialization. Keyboard is not present or the hardware is not responding when the keyboard controller is initialized. PS2 Keyboard support is enabled in the BIOS setup but the device is not detected. PS2 Mouse support is enabled in the BIOS setup but the device is not detected. Keyboard Controller failure. This may indicate a problem with system hardware. PS2 keyboard is locked. User needs to unlock the keyboard to continue the BIOS POST. The system has been halted. A reset or power cycle is required to reboot the machine. This message appears after a fatal error has been detected. Indicates that key is pressed during the BIOS POST. The POST will load and use default CMOS settings. The password entered does not match the password set in the setup. This condition may occur for both Supervisor and User password verification. This message is displayed when ADM module is not present in the AMIBIOS8 ROM. This message is displayed when language module is not present in the AMIBIOS8 ROM. Error in initializing legacy Floppy Controller. 53 Chapter 4