Hi guys I bought a Nvidia 8800gt from ebay flashed to work on my 1,1 mac pro. Well I took out my 7300gt and installed the new card. Upon boot the graphics card fan was running real fast,it didn't spin down, so I did a shutdown and tried it again. Same result. Third time the mac did the bong but kept repeating the bong held the power to get it to stop. It did it a few time like that. Next time it bonged, fans spun down and it booted normal. Mac reconized the card was a 8800gt and whatnot. So I figured I would reboot to make sure all was well but when I did it did the repeat bong thing again. Tried it one more time did a normal bong but no video. No during the repeat bongs they had no video as well. So I figured I would put the old card in to see if maybe I messed something up, we'll put in the old card everything boots fine even after me booting it 10 11 times so it has to be the card. What do u think it is?