NH-L9i TDP Guidelines

The NH-L9i is a low-profile quiet cooler designed for use in small form factor cases and HTPC environments. While it provides first rate performance in its class, it is not suitable for overclocking and should be used with care on CPUs with more than 65W TDP (Thermal Design Power). Please see the following table for our detailed recommendations and also read the explanations below:

Intel Sandy Bridge
65W or less OK
95W OK
Recommended with good case ventilation only.
Intel Ivy Bridge
65W or less OK
77W OK
Recommended with good case ventilation and Intel Turbo Mode disabled only.
Intel Haswell
65W or less OK
84W* NOK
Recommended with good case ventilation, Intel Turbo Mode disabled and typical workloads only (not recommended for continuous 100% load on all CPU cores).
Intel Broadwell
65W OK
Intel Skylake
65W or less OK
95W* OK
Recommended with good case ventilation only.

*Caution: Under certain conditions Intel's unlocked -K series CPUs may dissipate more heat than indicated by the TDP value. Please see this FAQ for details. Our recommendation includes -K series CPUs, but only if the heat dissipation is limited to the indicated TDP by choosing appropriate BIOS settings.

CPU temperatures depend on various different factors, so please take note of the explanations below and keep in mind that our recommendations can only serve as general guidelines for typical setups.

1) Our recommendations are based on an ambient temperature of 25°C or less. If your ambient temperature is significantly higher (30°C or more), we don’t recommend running the NH-L9i on 95W Skylake, 84/88W Haswell, 77W Ivy Bridge or 95W Sandy Bridge CPUs. For all other setups, please ensure good case ventilation when ambient temperature is 30°C or more.

2) Our recommendations assume that the cooler is installed in a typically equipped, properly ventilated HTPC system. If you are using particularly hot components inside your system, it may be necessary to use stronger case ventilation to ensure sufficient CPU cooling performance.

3) Our recommendations assume that the fan is used with PWM control (configured so that it can speed up to 100% when necessary) but without the supplied Low-Noise Adaptor. If you would like to use the NH-L9 with the supplied Low-Noise Adaptors, we recommend choosing CPUs with less than 65W TDP.