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July 10th, 2015 11:00
CMOS checksum error
Hello, i have inspiron N4010. when i start my laptop, it shows error massages like CMOS checksum error, system bios shadowed, video bios shadowed. every time it goes to manufacturing date. So please help me what to do?
ejn63
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July 10th, 2015 18:00
First thing to try is changing the reserve (CMOS coin cell) battery:
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If that doesn't solve the problem, the CMOS chip itself is bad and the mainboard will need to be replaced.