Assuming you mean the Dell M6400 laptop (you didn't specify...), then the answer is no. There is no Core i5/i7 which can fit into a motherboard using the Q43 chipset.
Yes I was talking about the dell precision m6400. Thanks for the feedback, it is much appreciated. As far as laptops go it isnt generally possible to upgrade the motherboard as far as I know so i guess il look into getting a new laptop.