Power Supplies and Cooling (3.1)

These flashcards cover essential terms and concepts related to power supplies and cooling systems in computer setups.

Power Supply Unit (PSU)

Delivers low-voltage direct current (DC) power to PC components.

Rectifier

Converts alternating current (AC) to direct current (DC) in a PSU.

Wattage Rating

The output capability of a PSU, measured in watts (W), indicating power supplied to PC components.

Modular Power Supply

A PSU with detachable cables to reduce clutter and improve airflow within the chassis.

Heat Sink

A device that dissipates heat from components such as CPUs, using increased surface area for convection.

Thermal Paste

A substance used to improve heat transfer between a component and its heat sink.

AC Voltage Supply

The alternating current voltage provided by electrical outlets, which varies by country.

80 PLUS Certification

An efficiency rating indicating how efficiently a PSU converts AC power to DC for computer components.

Active Heat Sink

A heat sink that uses a fan to improve cooling for components generating significant heat.

Redundant Power Supply

A PSU setup where one unit serves as a backup to maintain system uptime and prevent data loss in critical environments.

Liquid Cooling System

A cooling solution that utilizes liquid to transfer heat away from components, offering effective cooling and reduced noise.

Energy Efficiency

The ratio of useful output of services to the input of resources, indicating how efficiently a system uses power.

Power Distribution

The management of power supplied across different voltage rails within a PSU.

Fan Cooling Systems

Systems that use fans to improve airflow in a PC and help dissipate heat generated by components.

Open-Loop Liquid Cooling System

A cooling system that circulates coolant through a loop to absorb and dissipate heat from PC components.

Passive Heat Sink

A heat dissipation device that relies on natural convection and conduction without active cooling components like fans or pumps.

Voltages Provided by ATX PSU

A set of standardized voltage outputs including +3.3V, +5V, and +12V, essential for powering various PC components.

U.S. Voltage

Standard voltage levels used in the United States, typically including 120V for general electrical outlets and 240V for high-power appliances.

European Voltage

Standard voltage levels used in Europe, mainly including 230V for general electrical outlets.