Does a mobo need a ground to earth,

[Totalchaos]

Hi guys

I'm busy with my next mod (mini-itx board on the back of a 15" lcd, pictures coming soon)
I'm going to mount the mainboard on a piece of plexi
so there are no standoffs, just some ertalon washers to raise the board a bit
do I need to ground the board extra with a wire from a mounting screw to the steel backplate of the lcd monitor?
I've googled this and opinions vary, some say hell no, it grounds itself through the atx power plug, others say you need the ground via the standoff to the case to prevend trouble

any thoughts?

 

[TheGeekFreek]

Its gets its ground from the power supply connection.. It gets additional grounding from the chassis of the case.. Ive build PCs to wooden mounts before without problem.. But I would recommend proper grounding.. You could even get around this by maybe running small wires from the standoff points and connect them to the PSU chassis.. but no, not really that necessary..