LGA 1151,[1] also known as Socket H4, is a type of zero insertion force flip-chip land grid array (LGA) socket for Intel desktop processors which comes in two distinct versions: the first revision which supports both Intel's Skylake[2] and Kaby Lake CPUs, and the second revision which supports Coffee Lake CPUs exclusively.
LGA 1151 is designed as a replacement for the LGA 1150 (known as Socket H3). LGA 1151 has 1151 protruding pins to make contact with the pads on the processor. The Fully Integrated Voltage Regulator, i.e. a voltage regulator which integrated on the CPU's die, introduced with Haswell and Broadwell, has again been moved to the motherboard.
Most motherboards for the first revision of the socket support solely DDR4 memory,[1] a lesser number support DDR3(L) memory,[3] and the least number have slots for both DDR4 or DDR3(L) but only one memory type can be installed.[4] Some have UniDIMM support, enabling either type of memory to be placed in the same DIMM, rather than having separate DDR3 and DDR4 DIMMs.[5] The second revision socket motherboards support only DDR4 memory.
Skylake, Kaby Lake, and Coffee Lake chipsets support VT-d, Intel Rapid Storage Technology, Intel Clear Video Technology, and Intel Wireless Display Technology (an appropriate CPU is required). Most motherboards with the LGA 1151 socket support varying video outputs (DVI, HDMI 1.4 or DisplayPort 1.2 – depending on the model). VGA output is optional since Intel dropped support for this video interface starting with Skylake.[6] HDMI 2.0 (4K@60 Hz) is only supported on motherboards equipped with Intel's Alpine Ridge Thunderbolt controller.[7]
Skylake, Kaby Lake, and Coffee Lake chipsets do not support the legacy conventional PCI interface; however, motherboard vendors may implement it using external chips.
^ abCutress, Ian (August 5, 2015). "Intel Skylake Z170 Motherboards: A Quick Look at 55+ New Products". AnandTech. Retrieved August 5, 2015.
^"MSI Z170A GAMING M7 (Intel LGA-1151) Review". TechpowerUp. August 5, 2015. Retrieved August 5, 2015.
LGA1151, also known as Socket H4, is a type of zero insertion force flip-chip land grid array (LGA) socket for Intel desktop processors which comes in...
which was released in April 2020. LGA 1200 is designed as a replacement for the LGA1151 (known as Socket H4). LGA 1200 is a land grid array mount with...
of pins its name would suggest: 1200. Under the hood, LGA 1200 is a modified version of LGA1151, its predecessor. It features 49 additional protruding...
with a lateral length of 75 mm for Intel's sockets LGA 1156, LGA 1155, LGA 1150, LGA1151 and LGA 1200. Cooling solutions should therefore be interchangeable...
motherboards. Although desktop Coffee Lake processors use the same physical LGA1151 socket as Skylake and Kaby Lake, the pinout is electrically incompatible...
sockets that have a distance of 75 mm, such as LGA 1156, LGA 1155, LGA 1150, LGA1151 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, LGA 1155, LGA 1150, LGA1151 and LGA 1200 it is 75 mm × 75 mm For LGA 1700, it is 78 mm ×...
the later, LGA 1155, LGA 1150, LGA1151, and LGA 1200 sockets meaning that cooling solutions should generally be interchangeable. All LGA 1156 processors...
square with a lateral length of 75mm for Intel's sockets LGA 1156, LGA 1155, LGA 1150, LGA1151 and LGA 1200. Cooling solutions should therefore be interchangeable...
an unlocked multiplier and can be overclocked. Common features: Socket: LGA1151. All the CPUs support dual-channel DDR4-2133 or DDR3L-1600 RAM. All CPU...
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first Xeon series based on the Skylake microarchitecture. It uses new LGA1151 socket, which was introduced with the desktop Core i5/i7 Skylake processors...
Precision T5820 2017 LGA 2066 Xeon W Family (Skylake-W) N/A Intel C422 DDR4 ECC 2x PCIe x16 Gen 3, up to 600W Precision T3620 2016 LGA1151 7th gen Core i7...
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