Question Pc freezes and all my usb stops working

Oct 18, 2020
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Hi guys,
I have just changed my deffective cpu water cooling for a cpu fan because my cpu was overheating. To switch it up, I had to deplug almost everything in my pc and replug it afterwards. My CPU don't overheat anymore but I have a new issue. After 1-2 minutes after oppening a game, my PC freezes and all my USB hardware stop working (mic, headphones, mouse and keyboard), my monitor is still open with the frozen screen. After that, I try to restart my PC and it open for 5 seconds and close down immediatly. It does this constantly until I turn down the power. Then I try to start my pc manualy and my monitor + USB devices don't work but the PC is running. Sometimes, everything works at oppening but I get a 'failed to overclock' error.

Do you guys have any idea what could be the issue?

Thank you!

ASUS Z87-A
Intel i5 4670k
NVIDIA GeForce GTX 960
 
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