The Socket 1155 (also called LGA1155 or Socket H2 ) is a processor socket for the processor series Intel Core i3, Core i5 and Core i7 Sandy and Ivy Bridge generation. It was introduced in January 2011.
He is the successor of the base 1156th Required was this base, as the Sandy Bridge architecture replaced the Nehalem microarchitecture. Processors in the socket 1155, the memory controller and the PCI controller are still integrated into the processor - the base provides corresponding connections.
The biggest change compared to its predecessor is the 1155 socket, the separate connection of CPU, IGP and the integrated Northbridge to each their own energy supply. The chipset, which (formerly Southbridge ) consists of a chip is connected via DMI. Compatible chipset series for this socket, the Intel 6 Series and Intel 7- series.
Sandy Bridge chipsets
Information about compatible chipsets can be seen from the table below. Intel has decided to integrate no connection option for USB 3.0 ports in their chipsets.
Ivy Bridge chipsets
With the Ivy Bridge series update connectivity for PCIe 3.0 and USB 3.0 were added. The series -7 chipsets are backwards compatible with Sandy Bridge CPUs, but the PCIe 3.0 slots then run in PCIe 2.0 mode.