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Difficulty: EasyCPU Architecture Cooling and Sockets

Match each CPU packaging architecture or cooling component on the left with its correct defining characteristic on the right.

  • Land Grid Array (LGA)Socket architecture where contact pins are located on the motherboard socket rather than on the processor package.
  • Pin Grid Array (PGA)Processor package architecture featuring pins on the underside of the CPU that insert into motherboard socket holes.
  • Thermal PasteThermal interface material applied between the CPU integrated heat spreader and heatsink to fill microscopic air gaps.
  • All-in-One (AIO) Liquid CoolingSealed cooling loop system utilizing a liquid block, pump, tubing, and radiator to transfer thermal energy away from the CPU.

Answer

Land Grid Array matches socket pins on the motherboard; Pin Grid Array matches pins on the processor package; Thermal Paste matches thermal interface material filling microscopic air gaps; All-in-One Liquid Cooling matches sealed liquid loop system with pump and radiator.
Each item accurately pairs with its physical construction or functional purpose: Land Grid Array has motherboard-side pins, Pin Grid Array has CPU-side pins, Thermal Paste fills microscopic surface air gaps, and AIO Liquid Cooling transfers heat using liquid circulation in a closed loop.

Step-by-Step Solution

1
Identify socket pin locations for LGA versus PGA packaging styles.
LGA places contact pins in the motherboard socket, whereas PGA has pins directly attached to the CPU package.
Differentiating pin placement is fundamental to selecting compatible CPU sockets and handling components safely.
2
Identify the primary role of thermal paste in CPU thermal management.
Thermal paste fills microscopic imperfections on metallic surfaces to facilitate heat transfer to the heatsink.
Air is a poor heat conductor, so filling tiny air pockets ensures efficient conduction.
3
Distinguish liquid cooling mechanics from air cooling or interface materials.
AIO liquid cooling relies on fluid circulation through a pump, tube, and radiator assembly.
Sealed liquid cooling loops handle higher heat loads by moving coolant between the water block and radiator fans.

Key Concept

CPU socket pin placement (LGA vs PGA) and thermal dissipation mechanisms (thermal paste and liquid cooling).
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Topics

CPU Architecture Cooling and Sockets

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