PC freezes

[benparker]

My PC build working fine and I noticed it completely freezed when I remove the front panel lid and put it back on again (Thermaltake Core V1). I did a refresh of win 10 to be on safe side. But happened again so I gave a light slap on the right side of the case and it froze again. Its the side with the HDD so I unplugged and replugged again but it still froze. Noticed it happen today.

What is the cause?

 

[theforce]

Make sure that everything is connected firmly(cables, RAM modules, PCI and/or PCI-E cards. Is the motherboard installed with all it's standoffs?

 

[benparker]

Yes everything is on firmly afaik incl standoffs