LGA 1155, also called Socket H2, is a zero insertion force flip-chip land grid array (LGA) CPU socket designed by Intel for their CPUs based on the Sandy Bridge (second generation core) and Ivy Bridge (third generation) microarchitectures.
It is the successor of LGA 1156 (known as Socket H) and was itself succeeded by LGA 1150 in 2013. Along with selected variations of LGA 2011 socket, it was the last Intel socket to fully support Windows XP, Windows Server 2003, Windows Vista, and Windows Server 2008.
LGA 1155 has 1155 protruding pins to make contact with the pads on the processor. The pins are arranged in a 40×40 array with a 24×16 central void and additional 61 omitted pins (two adjoining the central void, six in each of the four corners, and 35 in groups around the perimeter), yielding the 1600 − 384 − 61 = 1155 pin count. Processors for LGA 1155 and LGA 1156 sockets are not compatible with each other since they have different socket notches.
LGA 1155 also marked the beginning of UEFI secure boot with support in some later boards.
^"Intel Core 2 gen CPUs and Socket 1155 Datasheet" (PDF). Intel. Archived from the original (PDF) on February 26, 2017. Retrieved September 26, 2012.
LGA1155, also called Socket H2, is a zero insertion force flip-chip land grid array (LGA) CPU socket designed by Intel for their CPUs based on the Sandy...
LGA 1156 (land grid array 1156), also known as Socket H or H1, is an Intel desktop CPU socket. Its incompatible successor is LGA1155. The last processors...
microarchitecture. It is the successor of LGA1155 and was itself succeeded by LGA 1151 in 2015. Most motherboards with the LGA 1150 socket support varying video...
replace its predecessor, LGA 1366 (Socket B) and LGA 1567. While LGA 1356 was designed for dual-processor or low-end servers, LGA 2011 was designed for high-end...
sockets that have a distance of 75 mm, such as LGA 1156, LGA1155, LGA 1150, LGA 1151 and LGA 1200. LGA 775 was the last Intel socket for desktops for...
mainstream platforms: For LGA 775, it is 72 mm × 72 mm For LGA 1156, LGA1155, LGA 1150, LGA 1151 and LGA 1200 it is 75 mm × 75 mm For LGA 1700, it is 78 mm ×...
with a lateral length of 75 mm for Intel's sockets LGA 1156, LGA1155, LGA 1150, LGA 1151 and LGA 1200. Cooling solutions should therefore be interchangeable...
supporting LGA1155 CPUs (Sandy Bridge and Ivy Bridge). The PCIe 2.0 lanes from the PCH ran at 5 GT/s in this series, unlike in the previous LGA 1156 chips...
with a lateral length of 75 mm for Intel's sockets LGA 1156, LGA1155, LGA 1150, LGA 1151 and LGA 1200. Cooling solutions should therefore be interchangeable...
cache per core Shared L3 cache which includes the processor graphics (LGA1155) 64-byte cache line size New µOP cache, up to 1536-entry Improved 3 integer...
first-generation Core i7 uses two different sockets; LGA 1366 designed for high-end desktops and servers, and LGA 1156 used in low- and mid-end desktops and servers...
(PGA) or Land Grid Array (LGA). These designs apply a compression force once either a handle (PGA type) or a surface plate (LGA type) is put into place...
It uses the new LGA 1150 socket, which was introduced with the desktop Core i5/i7 Haswell processors, incompatible with the LGA1155 that was used in...
other servers as h2 in TLS negotiation or h2c in the HTTP Upgrade header LGA1155 CPU socket, also known as Socket H2 Interstate H-2, a highway in Hawaii...
Sandy Bridge-based Celeron processors were released in 2011. They are LGA1155 processors (available in single- and dual-core versions) with integrated...