Since less than one month I have a card PL 1.2 Ghz. I had to remove it yesterday bus because the Cube more and more frequently froze. Most of the time blocking without information in panic.log. Impossible after sleep of screen to see Mac usable. Yesterday, installation of RC5-72, freezing in less than ten minutes for each test. Cuda mother board, Pram reset, installation of a new system, always the same thing. To note, the components of card DC-DC are very hot. Since I gave the processor of origin, nothing to announce. RC5-72 OK, screen sleep OK Bad Powerlogix card, problem with card DC-DC? I send a mall to my salesman. (traduction automatique fournie par SYSTRAN) -- JPN