Socket 603 is a type of CPU socket used in computer motherboards. It was primarily designed for Intel Xeon processors based on the NetBurst microarchitecture. This socket was introduced around the early 2000s and was used in workstations and some server-class motherboards. Socket 603 features 603 pins and a ZIF (Zero Insertion Force) design, which allows for easy installation and removal of the CPU.

Socket 603 has largely been replaced by newer CPU socket designs as processor technology has evolved. More recent Xeon processors and other server-grade CPUs use different sockets like LGA 2011 or LGA 3647. Therefore, systems using Socket 603 are considered outdated in terms of performance and features compared to modern hardwar