Computer Repair and PC Support across the UK
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Member since 22 Sep 2010
Many times this is simply a result of the charging circuitry on the motherboard, nobody is sure what causes it. Contacts to the battery are usually always okay, though to make sure check there aren't any bends in the contacts which are attached to the motherboard. If the problem persists, you do not have any crackling from the DC input on the laptop when moved and have a brand new battery, the only resolution is to replace the motherboard.
It completely depends on the type of motherboard. In the past I have successfully removed CMOS passwords by short-circuiting a track on the motherboard. Obviously this isn't recommended, and can only be done on certain models.
I have always been interested in computers and technology from a young age. My passion and curiosity for electronics resulted in my extensive knowledge of desktop pc's, laptops and mobile devices.
I worked for 4 years repairing computers for insurance companies, on-site callout to businesses and home users.
Due to my extensive experience and competence, I started my own business, from which I have gained great praise.
I offer free callout, advice and free estimates to all customers regarding anything with a plug.