ARCTIC Alpine 23 CO AMD AM5 AM4 CPU Cooler 90mm PWM Fan with MX-4 Thermal Paste

The ARCTIC Alpine 23 CO CPU Cooler is a compact and reliable air cooler designed for AMD AM5 and AM4 processors, with a focus on long-term and continuous operation. Its low-profile radial design makes it particularly suitable for compact PCs, home and office systems, workstations and machines that may operate for extended periods.

The Alpine 23 CO uses a compact aluminium heatsink featuring 50 Y-shaped cooling fins. This design increases the available surface area while keeping the cooler compact, helping provide effective heat dissipation without taking up unnecessary space around the CPU socket.

A 90mm PWM-controlled fan operates across a wide 200–2700 RPM speed range, allowing the motherboard to automatically balance cooling performance and noise according to CPU temperature. With a rated noise level of just 0.3 Sone, the cooler is designed to remain quiet during lighter workloads while increasing airflow when additional cooling is required.

The CO (Continuous Operation) version uses a premium dual ball bearing, making it particularly suitable for systems designed to operate 24/7. The bearing is more resistant to high temperatures and dust than conventional sleeve-bearing designs, while ARCTIC's efficient motor technology helps reduce vibration and improve long-term reliability.

Installation is straightforward using the existing AMD retention system, and ARCTIC MX-4 thermal paste comes pre-applied, eliminating the need to purchase or manually apply thermal compound during initial installation.

Backed by a 6-year ARCTIC manufacturer's warranty, the Alpine 23 CO is an excellent choice for builders looking for a compact, dependable AMD CPU cooler with AM5 and AM4 compatibility.