clintonsnow
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Vostro 420, CMOS Checksum error

Hello, everyone I need your advise.

Every Time I unplug my computer Dell Vostro 420 I got CMOS checksum error this happen after I clean up the computer using clean air from air compressor.

I've replaced the battery by a new one but still the same issue.

I bought another battery package and I've replace the battery 3 times but still the same issue.


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