Land grid array
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Land Grid Array (LGA) is a newish interface for microprocessors of the intelpentium 4 family. Unlike the Ping Grid Array (PGA) interface that is found in all AMD and most intel processor based systems, there are no pins on the chip, in place of the pins are 'pads' of bare copper in which pins on the motherboard contact. The new prescott core pentium 4 chip systems with the new modle number system are on this new grid array system. The new "socket" used by these new chips is dubbed socket 775 or socket t.