Windows 10: PC crash after boot up, is my hardware faulty? Crash, monitor no signal loud buzzing noise.

Hi guys,I want to express my concerns: I have built my PC about 4 or 5 years ago, while not perfect, everything worked up until now without any issues I am suprised it worked that well. It started about 2 weeks ago where my PC would suddenly slow down, to the point that the cursor was lagging and the applications, such as Discord would take 10-20 Seconds to switch a tab. It did not crash my pc right away, but it started to do exactly that, slows down to the point where my monitors lose signal and a loud buzzing noise appears, when I watch a video for example.I think I only had those problems

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PC crashing with buzzing noise

my pc randomly crashes when im playing games with a buzzing noise that lasts for about 5-10 seconds then my pc shuts off. I looked in windows reliability monitor and i got 0x0000007e (0xffffffffc0000005, 0xfffff800208345f3, 0xffffa10819e75ad8, 0xffffa10819e75310
how do i fix this?

 

Computer randomly freezing with loud buzzing noise

Thank you for your help. I ran the tests you told me to. Could you help me read what these numbers mean and what the root cause could be?

 

Loud Buzzing Noise during Videos

I have a Lenovo Yoga 720

I recently purchased it a few months ago.

I have windows 10.

Lately I have discovered there is a very loud buzzing noise, sounds like an electrical current or laser that is ringing when I am in a video call.

I cannot hear this noise during the video call, but when I am on video calls I am told the buzzing is so loud the other person cannot hear what I am saying.

I have tried to record a video of myself speaking on my computer and replaying it and I am able to hear the noise once I replay it.

I have tried to change my headsets and I have tried with and without a headset and the noise is still there regardless.

What to do ?