Case cooling is about airflow layout, and the count of fans matters far less than where each one sits and how it is tuned.
Quick Answer
To compare options for recording lectures without chasing hype, line up the few specs that change your day-to-day and ignore the marketing numbers. A balanced setup of three 120mm intake and one or two exhaust fans at 1,200 to 1,600 RPM keeps temps in check without roaring. Quality 120mm case fans in SA run about R150 to R400 each, and a full set of five plus a controller lands near R1,200; PWM static-pressure models sit at the higher end.
Noise Tuning For Quiet Builds
Set a fan curve that idles at 600 to 800 RPM and only ramps toward 1,200 to 1,600 RPM under load, and the build stays near-silent for study or recording. Rubber mounts cut vibration noise. One well-placed quality fan beats three cheap loud ones for both temperature and ear comfort.
Static Pressure Versus Airflow Fans
Fans behind a radiator or a dense filter need static-pressure designs; open intakes do better with high-airflow blades. PWM control lets the motherboard ramp fans up only under load, so the build stays quiet during light work. Quality 120mm PWM fans run R150 to R400 each and last far longer than bundled basics.
Buying It Right In South Africa
Airflow tuning beats fan count; one well-placed quality fan beats three cheap loud ones, and a good 120mm fan draws only about 2W so a fuller set costs little to run. Evetech ships nationwide, so even buyers in smaller centres get the same warranty cover as Sandton or Stellenbosch shoppers — keep the order reference for support.
FAQ
How many case fans do I actually need?
Three 120mm intakes plus one or two exhausts move air efficiently through most mid-towers. Slightly positive pressure with filters keeps dust out. Tuning the layout beats simply adding more fans.
Static pressure or airflow fans?
Use static-pressure fans behind radiators and dense filters, and high-airflow fans on open intakes. PWM control ramps them only under load to stay quiet. Quality 120mm PWM fans run R150 to R400 each and outlast bundled basics.
How do I make my fans quieter?
Set a curve that idles at 600 to 800 RPM and ramps toward 1,200 to 1,600 RPM only under load. Rubber mounts cut vibration noise. One good quality fan beats three cheap loud ones.
Browse 120mm PWM case fans at Evetech and tune the airflow layout before adding more fans.