Most of PC users are having troubles with power leaking from their PC casing. There are may have lot of reasons. But most of the time the reason is improper power connection. If you use good power connection with proper 3 pin plug point, then most of the time the problems with power leaking are get solved. We are normally use low price multiplugs for supply power to Monitor, CPU, Speaker/Sub-woofer, Router,Printer, etc. These low price multiplugs have no earth connections for it’s 3 pin outputs. So it is not recommend to use low quality multiplugs for PCs. CPU and Monitor must plugged to 3 pin plug points.