The Lynnfield Preview: Rumblings of Revengeby Anand Lal Shimpi on May 29, 2009 1:00 PM EST
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The LGA-1156 Socket and New Heatsinks
The LGA-1156 socket, as its abbreviated name implies, is designed to interface with Land Grid Array packaged CPUs. The pins are located in the socket itself. To install you set the CPU in the socket, lower a clamp and then fasten the clamp in place with a lever.
The LGA-1156 Socket
I wish I could provide a more detailed motherboard pic but a quick Google search should yield good results. The entire plate that holds the CPU in place actually lifts up and to the right in the picture above. The notch at the left of the plate slides under the screw you see on the left side and the lever at the bottom secures it in place. It works pretty well in person.
The new socket requires a new cooler. The four mounting holes are closer together on the LGA-1156 socket than they are on LGA-1366 boards, but further apart than LGA-775. It’s just different enough to require a brand new cooler, or at least a new mounting bracket.
Thermaltake's SpinQ: Our first LGA-1156 cooler
Thermaltake sent over its SpinQ which will ship with an adjustable LGA-1366 bracket that can be used on both LGA-1156 and LGA-1366 motherboards. Each peg can slide back and forth to get the right positioning before locking it down, allowing the cooler to work on both platforms.
Oooh, adjustable mounting pegs
The cooler performed just fine in our tests and looks painful so try not to sit on it.
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Jabbernyx - Monday, June 1, 2009 - linkYou're forgetting the $10 off promo code and 5% Live cashback ;)
Randomblame - Friday, May 29, 2009 - linkAnyone else irritated that when this launches intel will have 5 sockets going?
Shall we count em?
lga 775 core 2
lga 1366 i7
lga 1160 lynfield
lga 771 xeon penryn
lga 611 itanium
Did I miss any?
Anonymous Freak - Sunday, May 31, 2009 - linkIf you're going to include Itanium; you might as well include the mobile sockets as well.
Last October, Intel had one desktop, three server, and two mobile sockets:
LGA775 on the desktop was it.
LGA771 for dual Xeon, PGA-604 for quad-plus Xeon. (And LGA775 for single-socket servers, where the processors were just Core 2 series processors slapped with a "Xeon" name on them, so I'm keeping that with 'desktop'.) PAC-611 is Itanium.
Socket M is the slightly older mobile socket, Socket P is the newer. One could say that Socket M was already dead in October.
Early next year, we will have three desktop, two server, and two mobile sockets.
LGA 775 will be the low-end Core 2 socket, LGA 1366 for i7, and LGA 1156 for Lynnfield. Lynnfield should overtake Core 2 very quickly, especially after the integrated-graphics chips come out, and drop to two desktop sockets, though.
LGA 1366 doubles as the single and dual server socket; and the new "Nehalem EX" will in all likelihood have a new socket shared with the new Itanium (from reasonable guesses, anyway.)
Mobile will have just Socket P until the mobile Nehalems launch, when a new mobile Nehalem socket will be out.
Sorry, but LGA 771 is already dead. Its processors are completely obsolete at this point, by Nehalem-EP. And PGA-604 (which you missed,) as well as PAC-611, will be obsoleted by the Nehalem-EX socket. (Again, just guessing. The entire point of QPI was to make Xeon and Itanium share resources, so I would imagine they would use the same socket. Especially with Xeons now at higher power draw than even the highest draw Itanium; there is no reason for Itanium's goofy socket-with-power-pod arrangement any more.
Drazick - Friday, May 29, 2009 - linkThough the system looks good.
I really liked the one chip Idea (Chipset).
I hope Intel eventually let nVidia develop chipsets for this platform.
Why don't you think the regular PCIE X16 lane in this system is enough for GPGPU? It might not be the best but for Encoding some movies and Accelerating Matlab it should be enough, no?
Anand Lal Shimpi - Saturday, May 30, 2009 - linkI didn't mean to imply that 16 PCIe 2.0 lanes aren't enough for GPGPU. But if you're doing a *lot* of compute over the PCIe bus, perhaps over multiple very high end GPUs, then you'll probably want QPI. This is more of a HPC or head-in-the-clouds-desktop scenario though.
It should be more than enough for GPU based video encode or math.
ssj4Gogeta - Friday, May 29, 2009 - linkEven if Intel allows Nvidia, they can't make integrated graphics for i5 because the chip is connected to the chipset via 2 GB/s DMI, which will bottleneck it.
Doormat - Friday, May 29, 2009 - linkUntil the price of 4GB DDR3 sticks come down (and I could put 16GB of RAM on the board), I think the i7 is where its at. At least with i7, I can go with 12GB now and then upgrade to 24GB later (12GB I need, 24GB I don't know...).
A5 - Friday, May 29, 2009 - linkIf you NEED 12GB, then Lynnfield isn't going to be for you. Intel would much rather you use Xeons for that kind of workload anyway :P
ltcommanderdata - Friday, May 29, 2009 - linkSo with mainstream Nehalems not having any QPI links and high-end Nehalems with QPI not needing them, are third-party IGPs dead? It seems that even if nVidia can win their legal issues with Intel, the technical challenges of being limited to DMI seem to make the Intel chipset business unprofitable. Higher priced chipsets with IGPs would be bandwidth limited over DMI and just making southbridges doesn't seem very glamourous or profitable.
Anand Lal Shimpi - Saturday, May 30, 2009 - linkNVIDIA claims to have DMI based IGPs in development for LGA-1156 platforms. We'll see how good they are and if they do end up coming to market despite the legal issues.
In the long run I don't expect the 3rd party chipset business to survive on either platform (AMD or Intel). Unless either company is horribly deficient at some basic platform need I'd expect desktop and mobile AMD CPUs to use AMD chipsets and for desktop and mobile Intel CPUs to use Intel chipsets. It may take a couple of years to get there but I think the end result is inevitable.
I believe that's why we're seeing such a strong push from NVIDIA lately with things like Ion. Attempting to stay put when we know what the tide is about to do is a difficult task.