edit
we have checked the connector board/card, and the sdi hd contact was folded. We have straighten it up, and now it works… on the other hand, the sd sdi contact wasn’t folded, but no video signal pass through… 🙁
Apple G5 / OSX 10.4.10 / QT 7.2 / memory 8 GB / ATI Radeon X800 XT / M100 HDx board / software vs 12.03