LegionOfHell

Hello everyone, I have an E6440 with i7-4712MQ...my fan has coil whine and want to replace it...should I replace the heatsink or should I replace only the fan ? If i should replace the fan, which fan is recommended ?

I am considering to buy a dock for my E6440, do docks need an additional power adapter ? or is the power adapter that came with the laptop is enough ?

I bought one from ebay, the cosmetics are great, however the screen has 3 dead pixels, decided not to return it since it is in a very good condition... My screen has a resolution of 1366x768, Later on, I want to replace my screen with another 1366x768 panel.... what is the part number for this screen ? should i look at 40-pin or 30-pin ?