The E5470 heatsinks, fans, and bases are different for Dual Core and Quad Core motherboards so you need to stay with the same CPU type or you will have to switch out other components.

Includes:

on-board Intel Core i7-6600U @ 2.6GHz Dual Core CPU

Compatible With

for Dell Latitude E5470

DP/N:	NR58R 0NR58R
CPU:	Intel i7-6600U
Memory Type:	DDR4
Rev:	1.0(A00)
Hard Drive Interface:	SATA
Functional Test:	100% Pass

Intel I7-6600U 2.6GHz NR58R 0NR58R Laptop System Board For Dell Latitude E5470 LA - C632P

Laptop Spare Parts

Laptop Screen Cable

Laptop Bottom Case

Laptop Heatsink Replacement

Laptop Internal Fan

Laptop LCD Screen

Laptop Screen Hinge

Laptop Internal Speakers

Laptop Internal Keyboard

Laptop LCD Back Cover

Laptop LCD Bezel

Laptop Top Cover

Intel I7-6600U 2.6GHz NR58R 0NR58R Laptop System Board For Dell Latitude E5470 LA - C632P

Motherboard Intel i7-6600U 2.6GHz For Dell Latitude E5470

intel desktop board lga775

intel desktop board dh55pj

motherboard lga1155