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Socket G2, also known as rPGA 988B is Intel's CPU socket used with their line of mobile Core i7, the successor to the Core 2 line, and also with several mobile Core i5 and Core i3 processors. It is based on Intel's Sandy Bridge architecture. Like its predecessor, socket G1 systems, it can only run in dual-channel memory mode, but with data rates up to 1600 MHz (as opposed to the triple-channel mode which is unique to the LGA-1366 platform and subsequent Xeon sockets). Socket G2 CPUs are also known as FCPGA988 socket processors, which should be pin compatible with PPGA988.[2]

Socket G2
aka FCPGA988
Acer TravelMate P253-M-32344G50Maks - motherboard Q5WV1 LA-7912P - Foxconn rPGA 989-0226.jpg
FSB protocolDMI
FSB frequency2.5 GT/s, 4.8 GT/s[1]
Voltage rangeMax. 5 V with max. of 500 mA per pin
Intel "Sandy Bridge" (32 nm)
Core i7 Quad-Core
i7-2960XM, i7-2920XM,
i7-2860QM, i7-2820QM,
i7-2760QM, i7-2720QM,
i7-2710QE, i7-2670QM,
Core i7 Dual-Core
i7-2620M, i7-2640M
Core i5 Dual-Core
i5-2540M, i5-2520M,
i5-2450M, i5-2435M,
i5-2430M, i5-2415M,
Core i3 Dual-Core
i3-2370M, i3-2350M,
i3-2332M, i3-2330M,
i3-2330E, i3-2328M,
i3-2312M, i3-2310M,
i3-2310E, i3-2308M
B980, B970, B960, B950, B940
B840, B830, B820, B810, B805, B800, B730, B720, B720
Intel "Ivy Bridge" (22 nm)
Core i7 Quad-Core
i7-3940XM, i7-3920XM,
i7-3820QM, i7-3840QM,
i7-3720QM, i7-3740QM,
i7-3632QM, i7-3630QM,
i7-3612QM, i7-3612QE,
Core i7 Dual-Core
i7-3520M, i7-3540M
Core i5 Dual-Core
i5-3380M, i5-3360M,
i5-3340M, i5-3330M, i5-3230M,
Core i3 Dual-Core
i3-3130M, i3-3120M,
i3-3120ME, i3-3110M
2030M, 2020M, A1018
1020M, 1020E, 1005M, 1000M
PredecessorrPGA 988A (Socket G1)
SuccessorrPGA 946B/947 (Socket G3)

This article is part of the CPU socket series

Although nearly all motherboards using this socket are intended for mobile products like laptops, a few desktop boards using this do exist. Supermicro, for example, produced a number of mini ITX motherboards using the QM77 chipset.[3]

Technical specificationsEdit

  • Pins arranged in a 35 × 36 grid array (it is incompatible with G1 socket due to different placing of one pin)
  • 18 × 15 size grid removed from the center
  • Utilization of cam-actuated retention mechanism
  • The r in rPGA refers to reduced pitch which is 1 mm × 1 mm in this socket design.[4]

There are rPGA 989 sockets (as shown on the left) that can take Socket Socket G1 (rPGA988A) or Socket socket G2 (rPGA988B).

Supported memory:

  • DDR3 SoDIMM (1066-1333 MHz, Sandy Bridge); DDR3\DDR3L 1600 may works without DDR3L power optimisations and with 1333 MHz clock speed.
  • DDR3\DDR3L SoDIMM (1066-1600 MHz, Ivy Bridge).

See also

External linksEdit


  1. ^ Quoted from Intel's website and is reflected in the other reference links.
  2. ^ "What is the difference between socket PPGA988 and FCPGA988?". Intel. Retrieved December 14, 2015.
  3. ^ "3rd Generation Core™ Processor Based Motherboards". Supermicro. Retrieved January 6, 2015.
  4. ^ "Molex Connector Part Number - 47989-0132". Retrieved 2019-01-23.