''The computer does not respond at all to powering up sequence.''
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=== Faulty Battery ===
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If the power adapter is plugged in both to the wall and the computer, and the indicator light on the power supply block is on. The computer starts when the adapter is plugged in however does not start up when just the battery is present then the battery is faulty. Replace the battery using this guide.
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== Computer Will Not Boot ==
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''The Operating System does not load and displays an error message screen.''
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=== Faulty RAM ===
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If your computer runs slowly or frequently crashes during normal operation, fails during memory intensive tasks, or issues audible beeps during boot up sequence, this means either the amount or RAM is insufficient or a stick(s) of RAM went bad. Install additional RAM or replace defective RAM using this guide.
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=== Hard Drive Error/Failure ===
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== Computer Will Not Connect to the Internet ==
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''The icon in the system tray displays greyed out wireless bars with a red x in the corner''
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=== Faulty Wifi Card ===
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== Computer Overheats ==
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''While the computer is running, your computer shuts down without any notification.''
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=== Faulty CPU Thermal Paste ===
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Your computer may not have solid contact between the CPU and the heat sink fan assembly. The cause of this is usually by a lack of thermal paste due to age and temperature exposure or by air between components. Replace the existing thermal paste with this guide.