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Missing wireless connections (No wireless networks detected by the laptop and the wireless adapter is absent from Device Manager). Video card or graphics chipset failures (No video from either the LCD display or on the external monitor). [3] Sound system, optical drive and/or hard drive problems.
Windows cannot access this hardware because its service key information in the registry is missing or corrupted. 41: Windows successfully loaded the device driver for this hardware but cannot find the hardware device. 42: Windows cannot run the driver for this device because there is a duplicate device already running in the system. 43
Symptoms of an overheating system include missing Wi-Fi, to the failure of the graphics card chipsets and booting problems. HP acknowledges this as a "hardware issue with certain HP Pavilion dv2000/dv6000/dv9000" notebooks, which is eligible for free repair. [15]
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There are a number of other companies (AMD, Microchip, Altera, etc.) making specialized chipsets as part of other ICs, and they are not often found in PC hardware (laptop, desktop or server). There are also a number of now defunct companies (like 3com, DEC, SGI) that produced network related chipsets for us in general computers.
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Troubleshooting is a form of problem solving, often applied to repair failed products or processes on a machine or a system. It is a logical, systematic search for the source of a problem in order to solve it, and make the product or process operational again. Troubleshooting is needed to identify the symptoms.
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