I want to know if it is safe running a Radeon 5570 1GB on a 305W Dell PSU? Do I have enough amps too? Here is a picture of the sticker on the PSU. http://i.imgur.com/ArbrqmP.jpg . The rest of the system is Dell Optiplex 780MT - Core2Duo e8400 3.0ghz, 4GB DDR3 (3 Sticks), 250GB Sata2 HDD, 2 DVD Drives.