Do i need a new HDD for my build or anything?

Zekayn2

Honorable
Apr 19, 2013
19
0
10,510
Hi

soon im gonna upgrade my PC with a Z77 Pro3 motherboard
i5-3570k
cpu cooler
8gb ram ddr3 corsair vengeance
+Corsair carbide 500r case
and a new Operating system because i heard u need to change it if u replace the motherboard.

I bought my PC from a shop its an Acer Aspire M3400 and i upgraded my graphics card from a 5570 to a 6870 radeon.

My question is do i need to buy a new HDD to get it all work if i upgrade my PC or anything?