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BIOS clearing on hp notebook

By Dav reality ·
How can i clear the bios of a HP mini laptop.I have been using it for the last one and a half years and recently it got such a problem and tried to work on it and am still getting the same problem. It says "Unknown BIOS error code =9D20. Any help

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This could be your Cmos battery failing...

You need to know where in your laptop the Cmos battery is situated it will look something like this:
http://pcremix.com/wp-content/uploads/2009/09/remove-battery.jpg

It should have a number such as: "2032", without the quotation marks. Get a new one of similar size and number value, then replace.
Hope all goes well.

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