I have an early 2005 G5 2.3Ghz that was working and I unplugged everything to get it ready to move to another room eventually. When I plugged everything back in the screen on the monitor says "No Signal". I checked the connections and the same problem continued. I hooked up another monitor and it advises the same "no signal". I pulled the video card out and brushed it off carefully and reinserted it. Plugged everything back in and I am still getting the same issue. Also the fans seem to run constantly and it is not as quiet as when I first had it plugged in in another room. Both monitors state also "cables not connected".
PowerMac, 2.3 ghz 1.5 g ram mod A1047 EMC2061