Hello Gary, thanks for contacting us through the Intel Communities.
Since Intel is ramping down the motherboard business there is no plans of adding support for newer processors to the current line of boards. For new processors compatibility we recommend customers to try looking for third party manufacturers such as ASUS, MSI, Giga-Byte or the one of you prefer.
In your case since you already have the motherboards, I could ask if there is a way to sell you the i7-4770 processor.
Let me check on this and if it is possible I will send you a private message requesting your basic information.
Regards.