Im building a pc but i need some help. All my parts are compatible but it says I may need a BIOS update to make the cpu and chipset compatible. It actually says, "Some Intel B85 chipset motherboards may need a BIOS update prior to using Haswell Refresh CPUs." I placed my order and asked the seller "asrock" if they could update it for me and theu said they couldnt and told me to do it. How exactly can i do it? Do i build the pc first and then once its all together worry about it?