Why not make a video of the issue at home and then show it at the repair shop.my psu is under warranty so I can get it replaced/fixed if I am sure its the psu which is causing problem. But the thing is I am not able to replicate the issue when I take my pc to repair shop which makes me look like a fool.
I mean what exactly can repairwalla do if he can't replicate the problem at his endWhy not make a video of the issue at home and then show it at the repair shop.