Dorado is correct. Better to sell the existing card and purchase a more powerful one card solution, less heat, less power draw, less stress on the power supply and a more reliable solution. My wife has a Newegg.com - GIGABYTE GV-N450OC-1GI GeForce GTS 450 (Fermi) 1GB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
with a http://www.newegg.com/Product/Produc...82E16817194078
Liberty power supply. She is not a gamer, except Scrabble, Bejeweled Blitz, Luxor etc. I remember calculating it all up (3 7200 rpm hard drives, DVD burner, video card, Athlon 4 core 630 cpu, 3 cooling fans) and decided on 720W for the PSU. After all it is the lady of the house!