Hi I hope somebody may be able to help me. I am trying to upgrade my pc and am having abit of trouble to find out if the graphics card that I want to get is compatible with my computer. My system is a Dell Precision 690 Workstation. 0MY171 mobo. It currently has 1 Intel Xeon 5060 processor 3.20Ghz, 4GB of RAM and a Geforce 8800GTX 512Mb GPU and a 1Kw PSU. I am upgrading it to have a second Intel Xeon 5060 processor 3.20Ghz, an additional 16GB of Ram bringing it up to 20GB and want to change my GPU to a Geforce GTX 660. Will the GTX 660 be compatible with my system?