My mum accidentally removed power cable while New Area 51 R2 was still on..

So my Mum was cleaning my room and she accidentally removed the power cable from my Area 51 R2. I realised this until I came back from work.

Will anything have damaged my Area 51 R2? It's working but the sounds of the fans seem different to me and I can hear a whirring sound if I listen to it closely. My PCI fan usually runs at 768rpm and now they're running at 800 rpm.

Can any damage happen to the motherboard or any other components for that matter?

Because this is a very expensive...

My mum accidentally removed power cable while New Area 51 R2 was still on..

My mum accidentally removed power cable while New Area 51 R2 was still on..