PC cooling is the difference between a system that holds boost clocks under sustained load and one that thermal-throttles three minutes into a game. This category covers the full cooling stack: air coolers, AIO liquid coolers, custom open loops, case fans, thermal paste, fan curves, and the airflow patterns that tie everything together. The goal isn’t lowest possible temperatures — it’s stable temperatures matched to your CPU, your GPU, your case, and the workload you actually run. A Ryzen 9 in a 240mm AIO is overkill for office work and underbuilt for sustained rendering. A high-end air cooler can match many AIOs at half the price with none of the failure modes. The articles here include thermal paste reviews with real conductivity numbers, custom loop guides that explain pump and reservoir choice without the cult-of-watercooling marketing, AIO comparisons, and airflow setups for cases that ship with bad fan configurations from the factory. For the parts you’re cooling, see our Hardware Guides when temperatures cross safe ranges, see Troubleshooting.
Thermal paste typically lasts 3–5 years on a desktop CPU, though high-quality compounds can last up to 8 years while cheap OEM pastes may degrade in as little as 1–2 years. Last updated: June 2026 Quick Answer: How Long Does Thermal Paste Last? For most desktop users running normal workloads, thermal paste lasts 3–5 years…
Thermal paste removal is the process of safely stripping degraded thermal interface material from a CPU heat spreader and cooler base using isopropyl alcohol (IPA) at 90% or higher concentration before reapplication. Last updated: June 2026 Quick Answer: How Do You Remove Thermal Paste from a CPU? Dampen a lint-free cloth with 90%+ isopropyl alcohol,…
Thermal paste is a thermally conductive compound applied between a CPU and its cooler to eliminate microscopic air gaps and maximize heat transfer efficiency. Last updated: June 2026 Quick Answer: What Is Thermal Paste for a CPU? Thermal paste, also called thermal compound, thermal grease, or TIM (thermal interface material), fills the microscopic surface imperfections…
Thermal paste is a thermally conductive compound applied between a CPU’s integrated heat spreader and a cooler’s cold plate to eliminate air gaps that impede heat transfer. Last updated: June 2026 Quick Answer: How Do You Apply Thermal Paste? Clean both the CPU IHS and cooler cold plate with 90%+ isopropyl alcohol, let them dry…
Use a pea-sized dot of thermal paste, about 3–4mm in diameter, centered on your CPU’s integrated heat spreader for optimal thermal transfer. Last updated: June 2026 Quick Answer: How Much Thermal Paste Should You Use on a CPU? A single dot roughly 3–4mm in diameter, centered on the CPU’s IHS (integrated heat spreader), is the…
An AIO cooler is a self-contained, pre-filled liquid cooling system that circulates coolant between a CPU pump block and a case-mounted radiator to reduce processor temperatures. Last updated: June 2026 Quick Answer: What Is an AIO Cooler? AIO stands for All-In-One. An AIO cooler combines a pump, coolant reservoir, tubing, radiator, and fans into a…
A DDC pump is a compact, high-head-pressure 12V centrifugal pump used in custom PC water cooling loops, available in standard and PWM-controlled variants. Last updated: June 2026 Quick Answer: What Is a DDC Pump? A DDC pump is the smaller, higher-pressure of the two dominant custom loop pump platforms (DDC and D5). Originally developed by…
A 140mm case fan is a PC cooling fan measuring 140×140mm that moves more air per revolution than a 120mm fan, making it ideal for airflow-focused builds and radiators. Last updated: June 2026 Quick Answer: What Are the Best 140mm Case Fans? The best overall 140mm fan in 2026 is the Noctua NF-A14x25 G2 PWM,…
Most mid-tower PC builds need 2–3 case fans at minimum, typically two intake fans at the front and one exhaust fan at the rear, with the exact number scaling based on case size, total system TDP, and cooling method. Last updated: May 2026 72°C on your CPU under load with two case fans. 89°C with…
A liquid cooled computer is a PC that uses circulating liquid to transfer heat away from components like the CPU and GPU more efficiently than air cooling alone. Last updated: May 2026 Most people think water cooling is just for overclockers and enthusiasts who want their rigs to look pretty. They’re wrong. A well-chosen liquid…
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