Increase Computer Speed

Hi all, I just bought 2x8gb Adata DDR4 sticks for my A320m-h motherboard. Currently my 2x4gb sticks run at 2666mhz. When I install the new sticks and remove the old and enter my bios will it automatically read the new MHz at 3000 or will I need to do something to increase this...? Obviously if...

I have an older Dell Poweredge tower with built in raid support but it could only see up to 750GB of my new 3TB drives. I purchased a PCI RAID controller masscool xwt-rc061 to accomplish this, but I do not get any options at bootup to boot to this addon controller. I started creating a software...