Hi,
I have Dell XPS 15z DAO FCG14 laptop. The specification is :2nd Generation Intel® Core™ i7-2640M processor (2.80 GHz with Turbo Boost 2.0 up to 3.50 GHz), NVIDIA® GeForce® GT 525M 1GB graphics with Optimus, 15.6" 300-nit FHD (1080P) WLED Display with Webcam, 8GB Dual Channel DDR3 1333MHz...