By Noel Randewich SAN JOSE, California (Reuters) – Facebook Incs executive in charge of revolutionizing data centers on Tuesday lauded low-energy server technology that is expected to compete against heavyweight Intel Corp. The social networking firms three-year push to help companies design better data center gear is gaining momentum and paying off with a range of cost-saving improvements, Open Compute Project head Frank Frankovsky told an industry conference here. He pointed to plans by some companies to launch server chips based on low-power technology licensed from ARM Holdings, whose technology is widely used in smartphones. Intel dominates the server market with its powerful Xeon processors and stands to lose if server chips based on a rival architecture catch on. It has launched its own low-power chips in anticipation of a move toward microservers by major Internet players like Facebook and Google.