electrical short

After I built a computer, I saw one of the power supply cables have slight problem (slight rubber was removed). I believe that was not my fault. 1. If you buy a new power supply, do you inspect its every individual cables? 2. I worry some imperfect cables exist because I can't trust the every...

So I made a stupid mistake of using a couple metal twist ties on my cable management close to the MOBO and I think I nearly shorted out my PC and damaged the components. Not sure which will be affected if not all, but if anyone has any ideas which I should replace first that would be helpful. I...