7710 Eletricity sting along its metal frame of the chassis !

Guys, Do I have to be worried ?!?!

I noticed this thing immediately last friday when it arrived but I believed it was the presence of my sweater.

But tonight, with my arms naked, while I was writing (and I'm writing now), it's normal to place the back side of my forearm part on the palmrest part along the grey metal frame that enclose all the perimeter of the chassis. And it is exactly where I feel the little sting of the eletrical current.

To be sure I tried to brush against the metal frame with my fingetips and I feel the classical very light presence of electrical current.

Tried to unplug to power supply and, as I expected, I don't feel anymore that electrical current.

To avoid any doubts of my electrical system, I plugin the power supply to my UPS and nothing changes, I mean that with power supply I feel the sting of electrical current.

I don't know if it is linked or not (but I really don't believe): in the BIOS I changed the "recharging type" to "mainly plugged to electrical system".

So, do I have to be worried about it? What do you think? Is it normal there is some electrical dispersion?

Any other experience with other people have 7710 and 7510 ?

Thanks,
Ciao

 

1. Do you use a 3 pin plug in a suitable socket with a ground pin or an ungrounded 2-pin plug?

2. Have you checked each contact in the socket with a mains testing screwdriver? Only one contact should have voltage on it. However, bad wiring, bad grounding or bad other connected equipment can cause the neutral or ground contacts to have significant voltage.

That said, I have also encountered computers where, although connected to good electricity supplies, have some voltage on exposed metal parts. Sometimes this voltage comes from the ground connection of equipment connected to the computer. The fix is to wear some rubber or plastic soled footwear and sit on a non-conductive chair.

John

 

When u test with ups, is the ups disconnected from the main power supply? If the ups is isolated and no circuit short feeling, then confirm is the earthing problem at the wall socket. If still got sting feeling, the dell power adapter could be the culprit.

You may try few other sockets away from the existing socket group. Usually the earthing issue is only at a few sockets not the whole house.

 

Just got a 7710 and received a sting from electricity within the first few minutes.