NH-L9a-AM4: TDP guidelines

NH-L9a : guide TDP


Le NH-L9a est un ventirad silencieux de taille réduite destiné aux boîtiers SFF (Small Form Factor) et aux environnements HTPC. S’il offre une performance de premier ordre dans sa catégorie, il n’est néanmoins pas indiqué pour l’overclocking et exige une certaine prudence avec les CPU dépassant une TDP (Thermal Design Power) de 65W. Veuillez vous référer au tableau ci-après pour consulter nos recommandations ainsi que les explications qui suivent :

Socket Codename TDP rating SKU Compatibility & remarks
AM4 Summit Ridge 65W ou moins tous compatible
95W tous compatible
Recommended with good case ventilation only.
Bristol Ridge 65W ou moins tous compatible
Pinnacle Ridge 65W ou moins tous compatible
95W Ryzen 5 2600X compatible
Recommended with good case ventilation only.
105W Ryzen 7 2700X compatible
Recommended with good case ventilation only, might drop below base clock speeds with continuous 100% load.
Raven Ridge 65W ou moins tous compatible


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 only recommend the cooler for configurations where we specify full compatibility without any additional remarks or restrictions. Please also 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 cooler with the supplied Low-Noise Adaptors, we recommend choosing CPUs with less than 65W TDP.


4) All our TDP recommendations are based on thorough testing with the default values specified by AMD using popular applications such as Asus Realbench and prime95. Please note, however, that prime95 creates a particularly high load that goes beyond typical application scenarios and this leads to elevated temperatures. We thus recommend using other programs such as Realbench for checking the stability and temperatures of the CPU in realistic scenarios.