motherboards accommodate 32nm Intel socket LGA2011 'Sandy Bridge-E' Core i7
3xxx-series processors which currently come in 4-core and 6-core variants. Now,
while the heatsink mounting standard for LGA2011 'Sandy Bridge-E' processors is
dimensionally identical to previous LGA1366 'Nehalem' processors, the
through-PCB method of mounting a CPU heatsink used in the past has been retired
for a sturdier means; four M4x0.7 threaded metal studs.
In other words, a LGA1366 heatsink won't install onto a
socket for 32nm Sandy Bridge-E Processors.
The Gigabyte GA-X79-UD5 motherboard is outfitted with
three 4-pin PWM fan headers by the processor socket and two 3-pin fan headers by
the expansion slots.
Socket LGA2011 for Intel Sandy Bridge-E processors
with the exposed 'golden fingers'.
Intel 2nd Generation Sandy Bridge-E Core i7
3820 processor, FPGA package.
Since Intel has rolled out no fewer than five different
CPU sockets in recent years - LGA775, 1156, 1155, 1366, 2011 - choosing an
aftermarket heatsink for a new computer system has gotten rather confusing.
Whichever heatsink you pick, it must be capable of cooling a 130W Thermal Design
Here's what we're dealing with for Intel LGA2011
processors are physically much larger than the previous generation CPUs (the IHS
is now 38x38mm), so Intel engineered threaded metal studs into the LGA2011
mechanical CPU socket for the heatsinks to attach to. The idea is that this will
reduce stress on the motherboard and ensure sturdier mounting. In place of the
four PCB mounting holes (which ironically, still exist) all Intel LGA2011
heatsinks utilize four M4x0.7 threaded studs, spaced 80mm apart.
Socket LGA2011 rear support
The components of the new LGA2011 Intel Independent
Loading Mechanism (ILM) are pictured below.
Independent Loading Mechanism (ILM)
According to Intel's detailed Thermal/Mechanical Design
Guide, the LGA2011 processor package can take a maximum static compressive load
of 160lbf and can be inserted into and removed from the LGA2011 socket up to 15 times. Damage to the gold pads on the
bottom of the processor may occur after too many insertions/removals.
Like previous Intel FPGA processor packages, the
integrated heatspreader continues to be fabricated from nickel plated copper.
Maximum heatsink weight is spec'd at 600 grams.
The new heatsink mounting approach puts less flexing
stress on the motherboard PCB, standardizes (and I'd say greatly simplifies) how
aftermarket heatsinks mount onto LGA2011 processors and creates one new problem.
Stripped machine threads.
If the screws from the LGA2011 heatsink mound don't line
up correctly with the M4x0.7 threaded studs, it's easy to mash socket's screw
threads. Be carefull installing your heatsink onto the Gigabyte GA-X79-UD5
motherboard and if you encounter unexpected resistance, stop and check the
heatsink mounting hardware is going in straight!
One of the four M4x0.7 threaded metal studs for
affixing the processor heatsink.
Overclocking results for the Gigabyte
GA-X79-UD5 motherboard and a look around the 3D UEFI BIOS are coming right