The only way to make this MBP work again is to deactivate the AMD graphic chip and run only with the Intel graphics. Then you'll get the same performance than the 13" MBP 2011. I bought the Tiresias module from CMIzapper (www.CMIzapper.com) and installed it on my MBP 17" 2011 with success. This small module is soldered onto the MBP rom chip and bypass the AMD chip. Check the procedure on their web site: http://www.cmizapper.com/products/tiresias-gpukiller.html