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DVI cable Copper based issue
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peppe
Site Admin
Joined: Sun Aug 03, 2008 9:59 pm Posts: 447
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DVI cable Copper based issue
After a card that has been "burnt", we have get a information that, in some situations the DVI cable can send electric power thru the copper line if the ends having different grounding / Earth. They seems to NEED SAME GROUND / EARTH to not set the cards in risk.
Good to know, thank you Niklas at Massteknik that have the knowledge of wierds things like this!!!!!
_________________ Peppe Tannemyr SSR Beacon DigiGobos® Sweden retailer of Hippo systems
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Wed Nov 12, 2008 4:43 pm |
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johan west
Joined: Wed Aug 06, 2008 8:01 am Posts: 34
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Re: DVI cable Copper based issue
jeah.... taught that I could write down a bit about things with signal transaction as a whole approx :D
I get lot`s of phonecalls from people having all kinds of weird distortions and stuff when playing around with projectors. Almost every single time the problem has been sorted by making sure that the power to servers and projectors are taken from the same distro. People usually thinks that I am crazy when I go out and do my jobs, I refuse to do a projectionjob where someone else has built the electrical/signal distribution system, (except for RGB Oy) I always carry my own extenders, cables and distros, then I know exactly that the stuff works and that I dont have a lighting thingie messing around in the video power lines.
This with extenders, only extenders where you don`t need to have same ground is fiber transmitters that are made out of pure fiber, this means that for an example those Gefen DVI cables with readymade DVI connectors that carry copper needs to have the same ground as your source. If you do not have same ground, you might en up having a ground differance on up to 10 volts, that will definitely damage or maybe completely destroy your graphicscard.
Johan
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Mon Oct 19, 2009 7:13 pm |
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