Socket G1, also known as rPGA 988A (there are Socket G/rPGA 989 sockets that can take Socket G1/rPGA 988A or Socket G2/rPGA 988B packaged processors), is Intel's CPU socket for their line of mobile Core i7, the successor to the Core 2 line. It is based on Intel's Nehalem architecture which was first available for the 1366-pin "Socket B", which, like its predecessor, LGA775, uses the LGA socket configuration. Later followed the updated LGA-1156 socket, which moved the QPI and PCI-express controller off the Northbridge and onto the CPU. As a result of the lower pin count, LGA-1156 systems, and later, socket G1 systems, can only run in Dual-channel memory mode, as opposed to the Triple-channel mode which is unique to the LGA-1366 platform (and subsequent Xeon sockets). The Nehalem's mobile va