The Noctua NH-D15s is challenging to install on the CPU.
The Noctua NH-D15s is challenging to install on the CPU.
Hi, your Noctua NH-D15s assembly looks good overall, but the mounting issue seems unusual. The screws aren’t aligning properly when you try to place it on the CPU, and you’re having to apply extra force from another side. You ended up repasting because the thermal paste shifted due to movement. This isn’t uncommon with older models—some users have reported similar problems with earlier Noctua 14 or 15 units. When you removed it, you noticed a loud pop from the spring, which suggests some stress or misalignment. It’s definitely frustrating to deal with when you need to press hard for a secure fit.
Which socket are you employing? Are the brackets positioned and secured correctly? Is the orientation accurate? There should be just a minimal layer of thermal paste between the cooler and the CPU. If squeezing from the side reveals it’s intact, you have sufficient paste to fill any tiny gaps between the cold plate and the IHS.
A bit of pressure is typical, but it seems you forced one side completely before moving the other. Begin by aligning both sides just enough to reach the threads, then alternate between them with only a few rotations each time. This approach ensures even descent and improves surface contact, making the process smoother and more efficient. If you push one side fully initially, it becomes nearly impossible to start the second side and achieving uniform pressure will be difficult.
Thanks for the update. I'm experiencing issues with the connection on the opposite side. It seems I need to apply some pressure to move it, and the springs make it feel like something is resisting. I used a scythe model B previously, and the screws felt easy to install. I'm worried about damaging the motherboard—maybe the force from one screw caused it to shift. When I lifted it while shaking, I realized the issue might be with the brackets instead of the CPU. I'm concerned I might have accidentally removed the socket, but I thought the thermal paste was holding it in place.