LGA1156 vs FCLGA1156

Q. does LGA1156 motherboard supports FCLGA1156 processors ?

Yes.

FC stands for "Flip-Chip". All LGA 1156 CPUs are FC-LGA 1156.

They are the same thing. "FC-LGA 1156" is Intel's official name for the CPU package as it is a "Flip-Chip", "Land Grid Array" package with 1156 lands. All modern desktop CPUs (everything since the "Mendocino" PII-based Celeron) are "flip-chip" designs, so most people just call FC-LGA 1156 "LGA 1156." However, Intel makes a lot of other kinds of ICs that are traditional non-flip-chip designs and they feel they need to differentiate between what ICs are flip-chip and what ones are traditionally packaged.

The physical dimensions of Socket 1156 is about 1.57 square inches (40 square millimeters), made to accommodate the 1.48-square inch (37.5-square mm) compatible chips. A 0.94-by-0.63-inch (24-by-16-mm) section is cut off at the middle. The pin pitch size is 0.036 inches (0.9144 mm).

Socket 1156 supports the dual-core i3-5xx series of the Core i3, dual-core i5-6xx and quad-core i5-7xx series of the Core i5, and quad-core i7-8xx series of the Core i7. The LGA 1155-compatible Core i3 has a 2.93-to-3.2-gigahertz (GHz) processing speed range. The ranges of the i5-6xx and -7xx series are 3.2 to 3.6 GHz and 2.66 to 2.8 GHz, respectively; while that of the i7 is 2.8 to 2.93 GHz.

Regarding memory specifications, all Socket 1156-compatible Intel Core chips support two channels of third-generational double data rate synchronous dynamic random access memory (DDR3 SDRAM) architecture with a maximum 1,333-MHz speed.

The Intel Core is not the only CPU brand that Socket 1156 supports. There is also the dual-core G1xxx series of the low-end Celeron and G6xxx series of the mid-range Pentium, as well as the quad-core L34xx and X34xx series of the server- and workstation-oriented Xeon. The processing speeds are 2.26 GHz, 2.8 GHz, 1.86 GHz and 2.4 to 2.93 GHz, respectively. While the Socket 1156-compatible Xeon uses the same maximum 1,333-MHz DDR3 SDRAM standard of the Core chips, the Celeron and Pentium's peak memory speed is lower, at 1,066 MHz.

Source: Tomshardware, WiseGeek, IntelCorp