Bumped CPU cooler, now CPU is causing PC to restart when under medium load

WolfyWolfyWolf

Commendable
Nov 16, 2016
12
0
1,510
Hi. Earlier today I was checking if my GPU was in place and I hit the CPU cooler. When I turned my PC on it ran well until I started to play Euro Truck Simulator 2. There was a buzzing noise from my speakers and my computer restarted. I'm not too worried about this problem because I'm waiting for my Athlon x4 860k to arrive so I can upgrade with a new cooler but I just want to know what the potential problem could be.

Specs:
(Prebuilt PC: Asus M32BF)
AMD A8-5500 - with some cheap cooler that came with PC
4GB RAM
ASUS RX550-2G
EVGA 450B PSU

Thanks in advance.