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Btw I thank you again for wasting your time trying to help me. Really really appeciate it. My housemate, who is a computer engineering degree holder won't even bother to help me.

Haha, no problem. I'm always happy to try and help.

From reading a few different places, the most likely problems could be:
-Your motherboard is faulty
-You need to reduce your hyperthreading value
-You need to reflash your BIOS
Hopefully if you get someone to try and help they'll know what that means and how to do it/check if that's the problem.