Okay, so my friend wants to upgrade his video card in his desktop computer. Well he picked out one that is supposedly compatible with his motherboard, and when asked I told him to hold off ordering it, because I wasn't sure if his power supply would handle it, and since I haven't bought any cards from the manufacturer, I wanted another opinion. The card is a DIAMOND 4890PE51GXOC Radeon HD 4890 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP ( http://www.newegg.com/Product/Product.aspx?Item=N82E16814103076 ). His power supply is a ENERMAX ELT500AWT, which IS 500 watts as stated is required for the card, but I'm not sure if it has 2 6-pin connectors, and if they are indeed 75 watts like the specifications for the card state. His motherboard, is a Gigabyte, model GA-965P-S3, and it does have a PCI x16 slot, and although only version 1.1 (as far as I know) should run the 2.0 card, unless I am mistaken, so no problems there.