Question High CPU Usage / Can't enter the BIOS ?

Mar 9, 2025
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Hello guys i have a very big problem that i didnt used to have before, i got this pc like 3 months ago and it was alright everything was playing without lags or over usage of anything, it was even barely using gpu/cpu cause i havent done any optimisations on anything cause i got it new as i said. Now for the past maybe 2 weeks I've started to notice some lags/spikes/dropped frames. I though it was only on the TF2 game because from getting constantly 150-300 fps with gpu usage of 30% and cpu of 20-50% on full required settings as it shows for my system, to now dropping from 300fps to 70fps and cpu usage even going over 100%.
I even saw cpu usage climb to 117% in relatively small fights

Then i downloaded PUBG to see if it was the same and unfortunately its the same and the graphics are like flickering, like breaking for that particular second when the cpu usage is going over 100%.
The thing that is worrying me is that i wanted to enable xmp on the ram but there is one big problem, I can't access the BIOS, it's literally giving me a total black screen, no sign of any blue as it should.
I've even tried forced bios enter with cmd and its still nothing happening only black screen can someone help me please?