trackball grounding.

[masterosok]

I have a PSU mounted in my control panel to power my LEDS and trackball. I am curious what the best option for me would be to ground my trackball since my computer case will not be anywhere near my control panel.  Would grouding it to a screw on the back of the PSU be safe?

[BobA]

The PSU should be grounded via its 3 prong plug.   If this is intact then grounding to the case of the PSU is a safe bet.

[masterosok]

Thanks!

[Vicious Burger]

I have a similar question,

I have a Happ trackball in my CP connected to the Opti-Wiz with an adapter cable from GGG. There are a pair of green wires that come off the trackball and join together at a connector,which I assume is a ground wire,(isn't ground usually black?) but where should i ground it? The PC is inside the cabinet,should i run a wire to the PC case to ground it? All my other controls (joys & buttons) work fine,they have all the ground wires on them,and are all connected through the Ipac4. Spinner is USB.

I checked with my multimeter that power is coming from the optiwiz,and it is getting 5v through the adapter cable.