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Difficulty: EasyCPU Architecture Cooling and Sockets

A desktop technician is assembling a custom computer and preparing to mount an air cooling heatsink onto a newly installed central processing unit (CPU). To ensure optimal thermal conductivity and eliminate microscopic air gaps between the CPU's integrated heat spreader and the heatsink base, which of the following materials should be applied?

  1. Thermal pasteAnswer
  2. B
    Silicone dielectric grease for high-wattage power supplies
  3. C
    Adhesive thermal pads designed for M.2 storage drives
  4. D
    Non-conductive adhesive meant for RAM heat spreaders

Answer

Thermal paste should be applied between the processor and the heatsink base to fill microscopic surface gaps and promote heat transfer.
Applying thermal paste fills microscopic pits and air gaps on the surfaces of both the processor's heat spreader and the cooling block, ensuring maximum surface-to-surface heat dissipation.

Step-by-Step Solution

1
Identify the physical requirement for CPU cooling installation.
Recognize that metal surfaces on CPUs and heatsinks are not completely flat at a microscopic level, creating thermal insulating air pockets.
Air is a poor heat conductor, so a conductive interface material is required.
2
Evaluate the appropriate material engineered for CPU heat transfer.
Select thermal paste as the correct compound formulated to transfer heat from the processor integrated heat spreader to the cooling solution.
Thermal paste efficiently fills micro-gaps without bonding the components permanently.

Key Concept

Thermal Interface Material (TIM) application in CPU cooling
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Topics

CPU Architecture Cooling and Sockets

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