Acer Aspire X3300 Service Guide
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...the user intentionally discharges the CMOS battery. This error can typically be resolved by using AMIBIOS Setup. Password check failed The password entered does not match the password set in the AMIBIOS8 Error code = 004Ah ROM. This condition may indicate a problem with keyboard controller... Displayed Description KBC BAT Test failed Keyboard controller BAT test failed. Unknown BIOS error. CMOS Battery is required to malfunction. A reset or power cycle is low. This message appears after a fatal error has been detected. PS2 Mouse not found PS2 Keyboard support...
...the user intentionally discharges the CMOS battery. This error can typically be resolved by using AMIBIOS Setup. Password check failed The password entered does not match the password set in the AMIBIOS8 Error code = 004Ah ROM. This condition may indicate a problem with keyboard controller... Displayed Description KBC BAT Test failed Keyboard controller BAT test failed. Unknown BIOS error. CMOS Battery is required to malfunction. A reset or power cycle is low. This message appears after a fatal error has been detected. PS2 Mouse not found PS2 Keyboard support...