I have an Antec 650W Psu which is 4yrs old now. I touched my cpu case accidently and felt a shock. I decided to check the psu and i found out that there's current running through my Psu's case. I don't have those voltmeters or whatever you guys call it but I have this small screwdriver that glows and tells if there's some current running. Is this normal?I am assuming there's a short in my psu as I have tested it with and without connecting it to my motherboard. Btw,I dont have proper grounding anywhere in my area. I have uploaded the images to help you understand better.