I know that people have been having success unlocking the 550 into a quad, but has anyone tried the 545? Has anyone tried to overclock? Right now it's about $20 cheaper than the 550, which I could put somewhere else...
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103694
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103694