Noctua has announced three new heatsinks for AMD’s new high-end CPU platforms, Threadripper and EPYC. If you’ve been following the company, or Morry’s motherboard reviews, then you know that these coolers are huge (and effective).
Apparently the main difference is the contact surface, 70mm x 56mm, to accommodate for the processor’s large package. AMD connects multiple dies together with their Infinity Fabric, which means a huge total surface area. The cooler comes in three sizes, corresponding to the fan that’s intended to be used with it: 140mm (NH-U14S TR4-SP3), 120mm (NH-U12S TR4-SP3), and 92mm (NH-U9S TR4-SP3).
The two “smallest” sizes, NH-U12S and NH-U9S, are both expected to retail for $69.90 USD, so I guess choose whichever makes the most sense for your system. The largest one, the NH-U14S, is $10 more expensive at $79.90 USD. They should be available by the end of the month.
Do the liquid coolers
Do the liquid coolers generally have a large enough contact surface on the water block, or are we going to need new versions of them also?
From what I have seen posted
From what I have seen posted (GamersNexus) , no not good IMO, they cover like 60-75% of area and the very center of threadripper IHS is nothing as there a X space.
I am sure it will be noted onces test results are able to be posted.
My “guess” is you probably gain 5-10c maybe with proper area with fully loaded cores (Prime95 load).
GamersNexus does a great job
GamersNexus does a great job with its hardware tear-downs and their thermal testing of the contact serface between the cooler’s coldplate and a processor’s IHS. The water cooling coldplate designs are going to have to be large enough to cover the entire surface of the Threadripper IHS. So that’s also going to have to include the wet side of the cooler’s coldplate block/fins that create more thermal exchange contact area between the coolent and the thicker part of the internal metal block/fins. I’d rather pay more and have that thick block with its fins large enough to cover the entire Threadripper IHS because Threadripper will be overclocked.
I rather that the cooler/coldplate be over-engineered as opposed to under-engineered and causing uneven thermal trasfer loads that may induce uneven mechnical stresses on the dies. Cover the entire Threadripper IHS with a large block of metal coldplate of the same exact dimentions so heat can not migrate to the corners and soak back into to the MCM or cause uneven thermal-mechanical stresses on the MCM/Dies.
Right, but so you don’t have
Right, but so you don’t have the water cooler fins bigger than a die, I guess they will need to make normal and big head units. that way they cover both small and large IHS sizes but still have efficient cooling per dies size.
They could make the
They could make the watercooler’s coldplate wet side of the internal block/fins only as big as the area taken up by the 4 dies(the area inbetween the 4 dies included) under the IHS, but go look at Der8auer’s delidding photos over at Videocardz.
That Threadripper IHS/lid is large and thick around the edges/lip and includes a thick matal ridge/spine running down the large axis of the inside of the IHS. It looks to be several MM wide and extends down(Z direction) as far as the IHS’s outer edges/lip extends and that ridge runs along the IHS’s long axis between the dies to about a little ways past the ends of the die’s long axis in both directions, and that metal ridge is also connected to the MCM with epoxy as is the lid’s edges/lip, all the way around, secured with epoxy.
I’d gladly pay more for a water cooler that has an internal block/fins(Wet side) that would cover the entire IHS on Threadripper for the best thermal conductance possible and to keep heat from pooling into the larger/thicker edges of TR’s IHS. That IHS is pretty hefty on Threadripper so the more contact area the better. It’s Threadripper’s overclocking usage that would benifit more from a little over-enginnering as the Epyc SKUs are run at much lower clock rates relatively compared to Threadripper.
BAD, Scott, BAD scott. No
BAD, Scott, BAD scott. No more jokes for you!
At first I thought the
At first I thought the headline read that they were announcing 3 new colors and got all excited, but nope, same shit brown.