LGA 1155
Encyclopedia
LGA 1155, also called Socket H2, is an Intel microprocessor
compatible socket
which supports Intel Sandy Bridge
and the up-coming Ivy Bridge microprocessors.
LGA 1155 is designed as a replacement for the LGA 1156
(known as Socket H). LGA 1155 has 1155 protruding pins to make contact with the pads on the processor. Processors of LGA 1155 and LGA 1156 sockets are not compatible with each other since they have different socket notches. However, cooling solutions are backwards compatible between both LGA 1155 and LGA 1156 sockets, due to both having the same distance of 75 mm between each screw hole.
Integrated USB 3.0
is confirmed for the future Z77, Z75 and H77 chipsets intended for Ivy Bridge CPUs. Refer here for the complete list of Sandy Bridge socket 1155 chipsets.
1 Ivy Bridge CPUs are not supported by this chipset.
2 USB3.0 is not supported by any of these chipsets. Motherboard manufacturers use external solutions to add USB3.0 support.
Microprocessor
A microprocessor incorporates the functions of a computer's central processing unit on a single integrated circuit, or at most a few integrated circuits. It is a multipurpose, programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and...
compatible socket
CPU socket
A CPU socket or CPU slot is a mechanical component that provides mechanical and electrical connections between a microprocessor and a printed circuit board . This allows the CPU to be replaced without soldering....
which supports Intel Sandy Bridge
Sandy Bridge (microarchitecture)
Sandy Bridge is the codename for a microarchitecture developed by Intel beginning in 2005 for central processing units in computers to replace the Nehalem microarchitecture...
and the up-coming Ivy Bridge microprocessors.
LGA 1155 is designed as a replacement for the LGA 1156
LGA 1156
LGA 1156, also known as Socket H or H1, is an Intel desktop CPU socket. LGA stands for land grid array. Its incompatible successor is LGA 1155....
(known as Socket H). LGA 1155 has 1155 protruding pins to make contact with the pads on the processor. Processors of LGA 1155 and LGA 1156 sockets are not compatible with each other since they have different socket notches. However, cooling solutions are backwards compatible between both LGA 1155 and LGA 1156 sockets, due to both having the same distance of 75 mm between each screw hole.
Integrated USB 3.0
USB 3.0
USB 3.0 is the second major revision of the Universal Serial Bus standard for computer connectivity.USB 3.0 has transmission speeds of up to 5 Gbit/s, which is 10 times faster than USB 2.0 . USB 3.0 significantly reduces the time required for data transmission, reduces power consumption, and...
is confirmed for the future Z77, Z75 and H77 chipsets intended for Ivy Bridge CPUs. Refer here for the complete list of Sandy Bridge socket 1155 chipsets.
Original Sandy Bridge Chipsets
Sandy Bridge chipsets, except Q65, Q67 and B65, support both Sandy Bridge and Ivy Bridge CPUs though a BIOS upgrade is required. Sandy Bridge based processors officially support up to DDR3-1333 memory, however in practice speeds up to DDR3-2133 have been tested to work successfully but performance gain in most applications is negligible.| Name | B651 | H61 | Q67 | H67 | P67 | Z68 |
|---|---|---|---|---|---|---|
| Maximum DDR3 slots | 4 | 2 | 4 | 4 | 4 | 4 |
| Overclocking Overclocking Overclocking is the process of operating a computer component at a higher clock rate than it was designed for or was specified by the manufacturer, but some manufacturers purposely underclock their components to improve battery life. Many people just overclock or 'rightclock' their hardware to... |
GPU | GPU | GPU | GPU | CPU + RAM | CPU + GPU + RAM |
| Allows using built-in GPU Intel HD Graphics Intel HD Graphics is a series of Intel integrated graphics processors built into computer processors.-History:Previous to HD Graphics, Intel integrated graphics were built into the motherboard's northbridge. This included Intel Extreme Graphics and the Intel Graphics Media Accelerator... |
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| RAID RAID RAID is a storage technology that combines multiple disk drive components into a logical unit... |
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| Maximum USB 2.0 ports2 | 12 | 10 | 14 | 14 | 14 | 14 |
| Maximum SATA Sata Sata is a traditional dish from the Malaysian state of Terengganu, consisting of spiced fish meat wrapped in banana leaves and cooked on a grill.It is a type of Malaysian fish cake, or otak-otak... 2.0/3.0 ports |
5 / 1 | 4 / 0 | 6 / 2 | 6 / 2 | 6 / 2 | 6 / 2 |
| Main PCIe Configuration | 1 × PCIe 2.0 ×16 | 1 × PCIe 2.0 ×16 | 1 x PCIe 2.0 x16 | 1 × PCIe 2.0 ×16 | 1 × PCIe 2.0 ×16 or 2 × PCIe 2.0 ×8 |
1 × PCIe 2.0 ×16 or 2 × PCIe 2.0 ×8 |
| Secondary PCIe | 8 × PCIe 2.0 | 6 × PCIe 2.0 | 8 x PCIe 2.0 | 8 × PCIe 2.0 | 8 × PCIe 2.0 | 8 × PCIe 2.0 |
| Intel Rapid Storage Technology | ||||||
| Intel Active Management Technology | ||||||
| Intel Trusted Execution Technology | ||||||
| Smart Response Technology Smart Response Technology In computing, Smart Response Technology is a proprietary caching mechanism introduced in 2011 by Intel for their Z68 chipset , which allows a SATA solid-state drive to function as cache for a hard disk drive.SRT is implemented in the device driver and firmware... |
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| Release Date | February 2011 | February 2011 | January 2011 | January 2011 | May 2011 | |
| Max TDP | 6.1 W | |||||
| Lithography | 65nm | |||||
1 Ivy Bridge CPUs are not supported by this chipset.
2 USB3.0 is not supported by any of these chipsets. Motherboard manufacturers use external solutions to add USB3.0 support.
Ivy Bridge Chipsets
All Ivy Bridge chipsets and motherboards support both Sandy Bridge and Ivy Bridge CPUs. Ivy Bridge based processors will officially support up to DDR3-1600, up from DDR3-1333 of Sandy Bridge. All Ivy Bridge chipsets will also allow overclocking of K-series processors.| Name | B75 | Q75 | Q77 | H77 | Z75 | Z77 |
|---|---|---|---|---|---|---|
| Maximum DDR3 slots | ? | ? | ? | 4 | 4 | 4 |
| Overclocking Overclocking Overclocking is the process of operating a computer component at a higher clock rate than it was designed for or was specified by the manufacturer, but some manufacturers purposely underclock their components to improve battery life. Many people just overclock or 'rightclock' their hardware to... |
? | ? | ? | GPU | CPU + GPU + RAM | CPU + GPU + RAM |
| Allows using built-in GPU Intel HD Graphics Intel HD Graphics is a series of Intel integrated graphics processors built into computer processors.-History:Previous to HD Graphics, Intel integrated graphics were built into the motherboard's northbridge. This included Intel Extreme Graphics and the Intel Graphics Media Accelerator... |
? | ? | ? | |||
| RAID RAID RAID is a storage technology that combines multiple disk drive components into a logical unit... |
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| Maximum USB 2.0/3.0 ports | 12 / 4 | 14 / 4 | 14 / 4 | 14 / 4 | 14 / 4 | 14 / 4 |
| Maximum SATA Sata Sata is a traditional dish from the Malaysian state of Terengganu, consisting of spiced fish meat wrapped in banana leaves and cooked on a grill.It is a type of Malaysian fish cake, or otak-otak... 2.0/3.0 ports |
6 / 1 | 6 / 1 | 6 / 2 | 6 / 2 | 6 / 2 | 6 / 2 |
| Main PCIe Configuration | ? | ? | ? | 1 × PCIe 3.0 ×16 | 1 × PCIe 3.0 ×16 or 2 × PCIe 3.0 ×8 |
1 × PCIe 3.0 ×16 or 2 × PCIe 3.0 ×8 or 1 × PCIe 3.0 ×8 + 2 × PCIe 3.0 ×4 |
| Secondary PCIe | 8 × PCIe 2.0 | 8 × PCIe 2.0 | 8 × PCIe 2.0 | 8 × PCIe 2.0 | 8 × PCIe 2.0 | 8 × PCIe 2.0 |
| PCI | ||||||
| Intel Rapid Storage Technology | ||||||
| Smart Response Technology Smart Response Technology In computing, Smart Response Technology is a proprietary caching mechanism introduced in 2011 by Intel for their Z68 chipset , which allows a SATA solid-state drive to function as cache for a hard disk drive.SRT is implemented in the device driver and firmware... |
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| Release Date | 2012 | 2012 | 2012 | 2012 | 2012 | 2012 |