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can anyone tell me anything about a small button in sappire r9 270x toxic ,it has the companies logo inscribed over it,and glows blue,i recently got it ,i did'nt got a instruction manual with it,and i'm not able to understand what's written in other sites,some UEFI THING,so something in simpler...

Hi, my system is the following a intel core 2 duo e7500(dual of 2.93ghz) 4gb ddr3 ram, 320gb 7200rpm hdd, 1gb overclocked 8400gs and a 235watt psu with 1 12v rail and my question is will this card work in my system http://www.newegg.ca/Product/Product.aspx?Item=N82E16814202075 i know it requires...