You chose the i7 4770 CPU, which does not support overclocking, so you don't need to use the Z87 motherboard, just use the B85 or H87 motherboard. In addition, since you do not overclock, you can replace the CPU with the E3 1230 V3. The performance is the same as that of the i7, and the price is basically the same as that of the i5. It is cost-effective. After a look, your computer is not equipped with a graphics card,It can be used with GTX 770 series graphics cards in the future.