As for the Southbridge chip failure, a technician would need a BGA rework station and a great deal of BGA chip soldering skills, since the SB chip needs to be removed and replaced. Micro-cracks in solder balls connecting the Southbridge chip to the motherboard as a result of a mechanical shockĮach of the first three faults can easily be diagnosed and repaired with the help from this guide.A webcam cable was disconnected from one of two connectors 1 2.A damaged cable connecting the webcam to the motherboard.There are four possible scenarios in cases like this, written from the most likely to less: Webcam’s absence in the device manager points to a hardware failure. In the Device manager there should be a HP webcam-101 device under the imaging devices or at least an unknown device with an exclamation mark beside it (a possible driver issue). During a testing process, I noticed the webcam isn’t working in Skype there was no video and the webcam’s control light wasn’t lit. After the Northbridge chip replacement the laptop started working. As it later turned out, it had numerous problems, one of them being a faulty webcam. When I asked a seller about the laptop’s history, his reply was “It just stopped working”. I bought this notebook for a repair and resale.
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