AMD made a terrible flaw with this design...
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- Опубликовано: 1 окт 2022
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A little clarification on the hooks remark at
I wish they hadn't worried about cooler compatability and just made the thermal transfer as good as possible.
if it was Intell it would be called a gimmick and not a flaw
Hey Jay. NH-D15 (and any Noctua Cooler) works perfectly with AM5, as long as it has the AM4 bracket. I've done all my Ryzen 7000 testing with NH-D15 with cero issues. You just happened to have an older NH-D15. Noctua provides AM4 bracket for free, btw.
Like they say adopting bleeding edge technology comes with all the blood of all the issues that come with it being fresh technology.
On the bright side, this means you can make 2mm worth of mistakes when lapping.
The NH-D15 qualifies for a free mounting kit if you have a version that came out before the AM4 socket war released. The AM4 mounting kit uses the stock rear plate, thus it will work on AM5 as well.
Little update for Jay and other viewers. I just bought a Noctua NH-D15 for my 5800x 3d in august. The latest versions come with a diagonally slotted bracket for AM3 or AM4. If you buy new you're good to go. If you buy used, beware because the old ones clearly didn't have the slot on the bracket.
Noctua always just sends new brackets for old coolers (for free). Got them for 3 AM4 builds
"CPUs are outlasting, even with degradation, they're expected life cycles in terms of when people upgrade. " turns around to daughters PC with a FX8320... Jay sir, you are so right.
There was definitely an engineer that thought "hey, why don't we make 2 brackets: a small, inner one for LGA socket mounting and a separate outer bracket for cooler mounting? That way we can offset the cooler mounting bracket to have lower z-height, keeping our IHS thinner and allowing universal AM4 cooler compatibility?" Probably the same dude who knew the challenger would blow up.
GN is planning to do a regular IHS - lapped IHS - direct die cooling comparison once the der8auer delidding tool arrives. Probably taking off a couple of millimeters from the IHS. According to Igor's Lab (and der8auer) it seems to be 3.42mm thick.
I believe Noctua has an AM5 bracket available now that should make all their stuff compatible. Good news for my next build plan
Is it possible that the extra thickness could also allow for more headroom for vertical stacked dies in the future without having to update the platform?
WHY MUST you make me remember, using the flat head method to put CPU coolers, I will NEVER forget, cracking a motherboard when the flat head slipped off that retention device. Way back in high school when I built my first Athlon 1.4ghz (computer with money earned bagging groceries).
I find it interesting that despite the 2mm too thick IHS, that CPU can run that much load and clock at these thermals. I originally wanted to get a Ryzen R7 7700X, but now I'm rather considering a Ryzen 7 7800X3D or something like that early next year because honestly, I intend to game on the system and if that thing is anything like the R7 5800X3D but with the thinned IHS (since 3d cache will make the die thicker anyways), thus compensating slightly for the temperatures, it could be an absolute beast.
Optimum Tech put out a fantastic video over undervolting these AMD 7000 series CPUs. I'd love to see that kind of undervolting paired with the delided CPU
I'm curious if the 3D cache is taller and the extra 2mm was actually chosen to accommodate the x3D chips
FAQ: Which Noctua CPU coolers are compatible with AMD AM5?
It's going to be really interesting to see all the top enthusiasts tackle this issue. If the thermals we're seeing really are because of the thick IHS, i'd have to imagine AMD will have to rethink it if they see similar to better performance with the lower temps.