Could use some help. My Dell R710 just started to electrocute me if I touch it anywhere. It's not a big or painful shocking just very little but noticeable one. Didn't start noticing it until today. Everything is runny normal seems. Does anyone have any advice on what it could be? For the outlet tested multiple ones and never had this problem with anything else plug into the outlets. Bad power supply?

Edit:

It's more so of a tingling sensation than a shock could say. I should have clarified that sooner. By the sounds of it, sounds like a ground wiring problem in the house, outlet or someplace.

Getting the wiring in the house look at just to be sure if that's it or not and being on the safe side.

Thanks to all the people that help!

Not sure why this is getting downvoted (I don't care that it is or the karma just more so curious on why or if it's because am new around this subreddit) if this is the wrong subreddit to post this question point me in the right subreddit.