I bought an HP Quadro FX 4500 and flashed it for use on the G5 per instructions on the macforums. The flash didn't work, it resulted in a black screen on the G5. I put in the old video card and heard a chime but no video. I tried to reset the board by pressing the switch same response . I removed the battery and reinstalled and same . I left it overnight with the plug off and connected it this morning and now I get no chime . I removed the video card and powered it up but the same issue. There are 2 red lights on. #2 and #7 . 2 I think means cpu overheat (not sure how since I didn’t touch anything there) and 7 is cpu halt. Just in case someone asks, yes the pcie cable which provides extra power to the video card was installed . I am not sure what happened. I can’t get my beloved G5 working again . Any ideas ?? I attached a photo of the red lights .