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Air cooler Thermalright Peerless Assassin 120 12 cm 1550 RPM White
The Thermalright Peerless Assassin 120 12 cm 1550 RPM White is a compact air cooler designed for efficient CPU heat dissipation in desktop systems. It features a 120 mm fan with a maximum rotational speed of 1550 RPM and a fluid dynamic bearing for extended operational life. The cooler provides up to 66.17 CFM airflow while maintaining a measured noise level of 25.6 dB, and its white finish and modest dimensions (135 × 125 × 157 mm) allow it to fit in a variety of mid-tower and small-form-factor enclosures.
The Peerless Assassin 120 combines a balanced fan speed with a low noise profile to deliver consistent cooling without excessive acoustic impact. The fluid dynamic bearing improves long-term reliability and reduces maintenance needs. Its compact footprint and 120 mm fan size make installation straightforward in many standard PC cases, while the white styling offers a neutral aesthetic that integrates with a range of builds.
Prepare the motherboard and CPU area by removing the existing cooler and cleaning thermal paste residues. Apply a thin, even layer of thermal paste to the CPU heatspreader. Position the Peerless Assassin 120 on the mounting bracket corresponding to your CPU socket and secure it according to the included mounting instructions, ensuring even pressure across the cooler base. Connect the fan cable to the CPU fan header on the motherboard and verify that the fan spins and adjusts speed through the BIOS or fan control software. Monitor CPU temperatures during initial operation to confirm proper contact and thermal performance.
For optimal performance, ensure adequate case airflow by maintaining unobstructed intake and exhaust paths and periodically cleaning dust from the fan and heatsink fins. Use motherboard fan curves or dedicated fan controllers to balance noise and cooling based on workload. Check clearance around tall memory modules and VRM heatsinks before installation to avoid interference.
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