Here are the specs for your motherboard: EMX-A70FM2+iCafe – www.emaxxtech.com/
This is the list of supported Processors from your Motherboard's Support site from the link above:
BUT FIRST MAKE SURE YOU HAVE THE LATEST BIOS INSTALLED OTHERWISE THE CARRIZO PROCESSOR WON"T BOOT UP. You can download the latest bios for your motherboard from here: EMX-A70FM2+iCafe - Google Drive
Also make sure you have the latest Motherboard Chipset drivers installed from here: EMX-A70FM2+ICAFE - Google Drive
If you don't have a separate GPU Card installed then you are forced to choose a APU (Processor with Integrated Graphics)
But if you do have a separate GPU card installed than choose one of the Athlon II X 4 processors.