Recently, we needed a heatsink for the Intel Xeon 658X. This is a 250W Intel Xeon W processor that you will see a review of on STH. While the CPU uses a LGA4710 mounting, it works with the Noctua NH-U14S DX4677, assuming you have the correct carrier frame, so we purchased one of those and thought we would do a quick look piece.
We purchased ours on Amazon. Here is an Amazon affiliate link to what we purchased.
Noctua NH-U14S DX4677 Overview
When the unit arrived, it came in a very Noctua packaging with a brown box.
The heatink and fans were already assembled in the box, and actually require disassembly, and then reassembly to install into the motherboard.
The naming on this one makes a lot of sense. This is effectively Noctua’s well-regarded NH-U14S heatsink and fan platform with a larger contact plate for the Intel Xeon Sapphire Rapids/ Emerald Rapids generation and the Intel Xeon 6 series of processors, specifically in the smaller sockets (e.g., not the Xeon 6900E+ or 6900P series)
Here is the other of the two Noctua NF-A15 140mm PWM fans that keep this unit running very quietly, albeit with a tall profile.
Here are the fan clips, heatsink, and heatpipes on the other side.
Here is what the top of the unit looks like.
Moving to the bottom is something very good. We noted in our Arctic Freezer 4U-SP5 Mini Review how we prefer pre-applied thermal interface material on the server and workstation units. Noctua did that here.
Noctua also provides a Y cable and a tool for installing the heatsink in the box. That is always handy, especially if you do not have a lab like at STH, where you are swapping out CPUs weekly.
Next, let us install the unit and get going.
