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EFZ-92HA3 review
The 92mm fan on the SilenX EFZ-92HA3 heatsink rotates at up to 2200RPM which creates just 41.6 dBA noise. At its reduced fan speed of 800RPM, the EFZ-92HA3 heatsink hums along at 33.0dBA noise, which is a pretty quiet. At full fan speed the EFZ-92HA3 heatsink maintained a CPU die temperature of 17.1°C at stock fan speed and 29.0°C at reduced fan speed. Where the EFZ-92HA3 heatsink falls into its own is on sub-85W TDP processors where CPU heat output is much better matched to its diminutive size and 92mm cooling fan.
Overall I was quite surprised with both of these SilenX fans. Expecting them to be focused solely on the audible sound levels, I did not foresee them to produce much airflow. However the design of these fans is well worth a look at. The silicone mounting is by no means a novel concept or even an addition, but just the change in installing a fan made it interesting and fun. I can really see how this would help reduce noise with either loose screws or simply stripped fan holes. After moving fans from case to case and build to build the threads tend to take a beating and have less of a firm grip, these mounts simply work!