Socket 604

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Socket 604 is a motherboard socket for Intel's Xeon processor.

Socket 604 was designed by Intel as a Zero Insertion Force socket intended for workstations and server platforms. It contains 604 contacts arrayed about the center of the socket, each contact has a 1.27mm pitch with regular pin array, to mate with a 604-pin processor package.[http://download.intel.com/design/Xeon/guides/25423902.

Socket 604 processors utilize a bus speed of either 400, 533, 667, or 800 MHz and were manufactured in either a 130 nm process, or 90 nm process. Socket 604 processors cannot be inserted into Socket 603 designed motherboards due to one additional pin being present, but Socket 603 processors can be inserted into Socket 604 designed motherboards. Currently, Socket 604 processors range from 2 GHz, to 3.80 GHz.