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No signal means no signal

You’re upgrading a laptop’s internal wireless card by replacing an 802.11g adapter with an 802.11n adapter. After installing the new adapter card, the drivers install properly but you’re not getting any signal. You ultimately replace the original card, but now it’s not seeing any wireless signal. Other devices on the wireless network are working perfectly. Which of these is the most likely cause of this issue?

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Don’t stop believ

Your computer is beginning to experience a new issue where it abruptly shuts down after less than an hour of heavy utilization. You also notice that something is loose and bouncing around inside of the PC’s desktop case when it’s moved. What is the most likely cause of this shutdown problem?

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