3 Different LGA 2011 pin outs: Haswell-EP Pictured Alongside Ivy Bridge-EX, Ivy Bridge-EP and Sandy Bridge-EP

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Posted February 19, 2014 by Patrick Kennedy in Servers
Three Different Intel Xeon LGA 2011 Sockets

Today we have a bit of news around the three different Intel LGA2011 sockets that will be offered by the end of 2014. The original Intel LGA2011 socket gave us Sandy Bridge-EP and Ivy Bridge-EP along with DDR3 support. This first socket has been on sale for years and is used in countless servers around the world. Today we have spy pics of the newer processors: Haswell-EP and the soon launched Ivy Bridge-EX.

Haswell-EP features a slightly different PCB shape with different cutouts. The current processors also have extra metal securing the thermal transfer plate to the PCB.

Intel Xeon E5 v3 Haswell-EP Top and Bottom

Intel Xeon E5 v3 Haswell-EP Top and Bottom

As Intel is launching this week we also have the Ivy Bridge-EX. Here we again see a LGA2011 socket. This time also a different PCB shape and notches for the socket.

Intel Xeon E7 v2 Ivy Bridge-EX Top and Bottom

Intel Xeon E7 v2 Ivy Bridge-EX Top and Bottom

Clearly the new Intel Ivy Bridge-EX CPUs and the upcoming Haswell-EP processors have different pin outs than today’s Sandy Bridge-EP and Ivy Bridge-EP sockets.

To prove this point we placed all four processors next to one another to see the differences in sockets. The general dimensions are about the same, as are the configurations with components surrounding each set of LGA2011 contact pads.

Three Different Intel Xeon LGA 2011 Sockets

Three Different Intel Xeon LGA 2011 Sockets

One will notice that the placement of those contact pads, the PCB surrounding them as well as the notches are different for the two new LGA2011 sockets Intel will offer for sale this year. Of course, this may end up being a bit confusing in the second hand market for motherboards because simply LGA2011 will have at least three different meanings by the time we end 2014. One would have hoped Intel could have made a different naming convention for each socket than simply appending -2 or -3 at the end (e.g. LGA2011-3) since that seems like an after thought.


About the Author

Patrick Kennedy

Patrick has been running ServeTheHome since 2009 and covers a wide variety of home and small business IT topics. For his day job, Patrick is a management consultant focused in the technology industry and has worked with numerous large hardware and storage vendors in the Silicon Valley. The goal of STH is simply to help users find some information about basic server building blocks. If you have any helpful information please feel free to post on the forums.

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