Socket G1

The base G1, also known as rPGA 988a, is a CPU socket by Intel for Core i - series of notebooks the first generation. The cores based on the Nehalem that was initially used for the 1366 -pin "Socket B". Later, the updated LGA 1156 socket followed. Due to the lower pin count, the processors can run with the G1 sockets only in Dual Channel mode. The mobile version was presented on 23 September 2009 in the form of the i7- 720QM, 820QM, 920XM models. The models i7 740QM, 840QM and 940XM followed on 21 June 2010. CPUs with the Clarksfield core, which were prepared by the same 45nm process as the desktop -based processors. The current CPUs that are using this this socket, the Core i7- 6x0M series, the Core i5- 4x0M series, the Core i5- 5x0M series, the Core i3- 3x0M series, and finally the Pentium and Celeron series P6x00 and P4x00 series, which were published on 28 March 2010. However, not all of them are compatible with the base C1, as some of them are in a BGA package.

Technical specifications

• ( Grid array) pins arranged in a 36 × 35 grid array
• 18 × 15 grid size from the center
• Use of a cam-actuated retention mechanism
• The r in rPGA ( PGA Pin Grid Array, German: pin - grid, "Reduced pitch", or reduced distance in pitch ( electronics) ) with a 1mm × 1mm base design.