Base G1

The Socket G1 also known as rPGA 988a, is a CPU - Socket of Intel for the Core i-series of notebooks the first generation. The cores are based on the Nehalem architecture , which was initially used for the 1366-pin "Socket B". The updated LGA-1156 socket followed later. Due to the lower number of pins, the processors with the G1 sockets can only run in dual-channel mode. The mobile version was presented on September 23, 2009 in the form of the i7-720QM, 820QM, 920XM models. The models i7-740QM, 840QM and 940XM followed on June 21, 2010. The CPUs with the Clarksfield core, which were manufactured using the same 45 nm process as the desktop-based processors. The current CPUs that use this socket are 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 released on March 28, 2010. However, not all of them are compatible with the G1 socket, as some of them are only in a BGA housing.

Technical specifications

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

Web links

• http://www.molex.com/molex/products/family?key=rpga_989988_notebook_pc_cpu_sockets&channel=products&chanName=family&pageTitle=Introduction
• http://www.designworldonline.com/articles/5444/154/Molex-Sockets-Earn-Intel--Validation.aspx
• http://ark.intel.com/MySearch.aspx?Sockets=PGA988

Individual evidence

1. ↑ Intel Core i7 Dual-Core : i7-620M, i7-640M http://ark.intel.com/MySearch.aspx?s=t&FamilyText=Intel%C2%AE%20Core%E2%84%A2%20i7%20Mobile % 20Processor & CodeNameText = Arrandale & Sockets = PGA988
2. ↑ http://www.molex.com/molex/products/datasheet.jsp?part=active/0479890132_PROCESSOR_SOCKETS.xml&channel=Products&Lang=en-US