Hi guys, ok I'm rather alarmed by this, was just plugging in my external USB HDD and I got a little zap when I touch the Earth metallic part of the USB plug. Tapping the USB plug to the metallic ports on the back of the computer causes little visible blue sparks.
I seem to recall that things that are not properly grounded and running a current through the air can slowly ruin the components of your PC in a deteriorative way over time.
What's really concerning is that my previous PC was acting strangely and now I am upgrading and just about to plug that drive in, and just had the thought, what if that external USB drive has been slowly killing my PC? I don't want my new upgrade to suffer the same fate.
FYI; I set my multimeter to test DC voltage and put the red probe on the USB earth and the black probe on the earth back of the PC and I got a steady -10 mV
I seem to recall that things that are not properly grounded and running a current through the air can slowly ruin the components of your PC in a deteriorative way over time.
What's really concerning is that my previous PC was acting strangely and now I am upgrading and just about to plug that drive in, and just had the thought, what if that external USB drive has been slowly killing my PC? I don't want my new upgrade to suffer the same fate.
FYI; I set my multimeter to test DC voltage and put the red probe on the USB earth and the black probe on the earth back of the PC and I got a steady -10 mV