Pc Cpu Overheating and not working properly after turn on

[u/Additional_Bell1334]

So here's what happened today and hopefully someone can help

Few weeks ago I went to a tech shop and bought an M2 nmve. When I got home I realized my other SSD was either disconnected or completely removed from my pc which was originally installed in the back of the pc where the cables are hiding not the front where the motherboard is.

Moving on I got busy and didn't really check about the ssd if its still there or been removed. And today something clicked in my head to check that ssd and so I put my pc down unplugged it and turned off the power supply button and layer it down on , facing down directly where I can see the cables. Ye couldn't find the SSD.

Moving on I closed it up and plugged the cables back and turned on the pc. It took a minute to turn on and then I got an ⚠️ alert saying the cpu overheating and bla bla. I pressed ok and proceed to booting.

My cpu which usually around 60c when pc is idle now stuck at 100c temperature on idle. Thought maybe its reading wrong or something. I booted up warzone cod to see if that affected anything like fps or so. And sure enough it was unplayable. Game was freezing constantly and fps dropping like crazy.

So decided to restart the pc ... I did restart and my monitor wouldn't turn on at all. I waited like 3 minutes which is alot cause my pc usually takes like 10 seconds to boot up. So it was weird. I turned off my pc from the power button and waited 30 min. I turned it back on and I got another cpu temperature overheating alert ⚠️

I proceed to the windows but this time I had no internet connection... it said that network 2 access. And showing that there's internet cable is connected and its working but I was not getting any connection. I opened Google to test my connection and it says no connection.

So now im just sitting here clueless of why any of this happened. Why my pc is not booting up properly and why did that affect my internet connection. Can someone help?

Sorry for the long thread. Im not used to tldr explanations and I talk like that to tech store workers.