Jim Keller, a legendary chip architect and svp of silicon engineering at Intel, has resigned with immediate effect citing personal reasons.

Keller’s Departure comes after last month’s article in Fortune headlined: “Why Intel is betting its chips on microprocessor mastermind Jim Keller.”

“Today, Intel announced that Jim Keller has resigned effective June 11, 2020, due to personal reasons,” says the company announcement,

Keller previously worked at AMD, Tesla and Apple, joining Intel in 2018.

Intel’s Technology, Systems Architecture and Client Group (TSCG) under Murthy Renduchintala, will see the following appointments:

• Sundari Mitra, the former CEO and founder of NetSpeed Systems and the current leader of Intel’s Configurable Intellectual Property and Chassis Group, will lead a newly created IP Engineering Group focused on developing best-in-class IP.
• Gene Scuteri, an accomplished engineering leader in the semiconductor industry, will head the Xeon and Networking Engineering Group.
• Daaman Hejmadi will return to leading the Client Engineering Group focused on system-on-chip (SoC) execution and designing next-generation client, device and chipset products. Hejmadi has over two decades of experience leading teams delivering advanced SoCs both inside and outside of Intel.
• Navid Shahriari, an experienced Intel leader, will continue to lead the Manufacturing and Product Engineering Group, which is focused on delivering comprehensive pre-production test suites and component debug capabilities to enable high-quality, high-volume manufacturing.