The "Intel Rapid Start" technology uses an SSD as a cache and for hibernating to get faster response times during wakeup.
This technology is mentioned to be supported e.g. by the the very similar DZ77BH-55K, but it is not mentioned in the features of the DH77KC. Is this really not supported or just not mentioned ?
It is optional for both chipset.(based on the chipset diagrams) It depends upon motherboard manufacturer to implement it.
According to product brief DH77KC it does not support Intel Rapid Start. Only Intel® Rapid Storage Technology and Intel® Smart Response Technology.