Last updated: October 2, 2026 · ToneCooling Engineering Team
An LGA4189 server CPU cooler is a heat sink or active air cooler that mounts on Intel Xeon processors in the LGA4189 socket and fits a 1U or 2U server height; ToneCooling offers LGA4189 air coolers rated from 205 W to 400 W CPU TDP, plus 500 W liquid coolers for higher loads. Pick the model by server height and processor TDP, or ask for a custom design.
Which LGA4189 Air Cooler Fits Your Server?
| Model | Server height | Type | Rated CPU TDP |
|---|---|---|---|
| LGA4189-2B01 | 1U | Heat sink | 205 W |
| LGA4189-2B07 | 1U | Heat sink | 230 W |
| LGA4189-2Z04 | 2U | Active air cooler | 270 W |
| LGA4189-2B02 | 2U | Heat sink | 300 W |
| LGA4189-2Z03 | 2U | Active air cooler | 300 W |
| LGA4189-2Z12 | 2U | Active air cooler | 400 W |
Rated TDP as listed on each product page. Actual cooling depends on server airflow, inlet air temperature and TIM; confirm with your system conditions.
How Do You Choose an LGA4189 Server CPU Cooler?
- Server height first: 1U leaves room only for a low heat sink that relies on system fans; 2U allows taller fin stacks or an active cooler with its own fan.
- Then processor TDP: choose a model rated at or above your CPU’s TDP, with margin for the inlet air temperature in your rack.
- Check airflow direction and fan control: heat sinks depend on the chassis fans; active coolers add their own fan and PWM control.
- When air is not enough: if the TDP, rack density or noise limit exceeds what air can handle, move to an LGA4189 liquid cooler.
Can ToneCooling Build a Custom LGA4189 Cooler?
Yes. Fin height, base material, heat pipe or vapor chamber base and fan can be adapted to your chassis. Send the server height, CPU TDP, airflow and inlet temperature, mounting and quantity; an engineer reviews every RFQ and replies by email with next steps.
Need an LGA4189 Server Cooler Quote?
Send your server height, CPU TDP and airflow. An engineer reviews every RFQ and replies by email with next steps.
LGA4189 Server CPU Cooler FAQ
What is the difference between a 1U and a 2U LGA4189 cooler?
A 1U cooler is a low-profile heat sink that relies on the chassis fans; a 2U cooler can use a taller fin stack or an active fan, which supports a higher CPU TDP.
Which LGA4189 cooler handles the highest TDP?
Among ToneCooling air coolers, the 2U LGA4189-2Z12 is rated for 400 W. For higher loads, the LGA4189 liquid coolers are rated for 500 W.
Do heat sink models need their own fan?
No. The heat sink models rely on the server’s system fans; the active air cooler models include a fan.
Can I order a cooler for a different socket or height?
Yes. Coolers for other sockets and server heights are built as custom designs to your drawing and thermal requirements.
Intel and Xeon are trademarks of Intel Corporation; no affiliation or endorsement is implied.
