hi guys - i just got a e6440 and fancy upgrading it a little to bring it back to the type of spec im used to i was running a 3.6ghz 6 core system with 32gb ram - obviously i wont get to that level but i dont have the space for a desktop type system anymore ive seen this i7 on ebay - is this one compatible? and im assuming i'll need to upgrade the cpu fan? Intel i7-4700QM Quad Core CPU 6M Cache max 3.4 GHz SR15H 4th gen | eBay im going to order some extra ram today too and that shhould do me for a little while. thanks in advance Dan