I have an Asus X550LA with 4GB of built in ram, a dual-core i-5 with hyper-threading and an Intel HD 4400 graphics card. My problem is this, I got a free corsair vengeance 8GB DIMM 204-pin memory card and installed it in my laptop. It supposedly supports up to 12GB ram, but is not detecting the new memory so I can't use it. I am running a 64-bit vesion of windows. Please Help!!!!!!!!!!!!!!!!!!