I have bought 2 different graphics card to try to soup up my old Dell Optiplex 990 but I got just plug and play cards without any connection to the power supply and as it turns out, my motherboard cant supply enough power to the cards to get them to work, so I need a graphics card under $150, single fan, and one that has an external power connector directly to the power supply and preferably something in the GTX 900s or above. If you know of any cards that fit this list I'd appreciate a link or the name of them. Thanks.