Grounding in a ATX motherboard

I'm thinking of starting a particularly ambitious project, a computer mobile.
i.e. one that hangs from the celing, suspended with wire! Of the many problems i've thought of (h.d. vibration being the main one). How many of the screws securing the motherboard have to be grounded? Because i'd prefer to only have to do one, if thats at all possable.

you don't actually "need" to ground any of them....i've run systems completely out of a case, with all the components simply sitting on a wood board...works fine.

a friend of mine once built a puter in his desk drawer :p

Dave is here now..

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Originally posted by TAZTG
Dave is here now..

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lol :D