Question

Difficulty: MediumCPU Architecture Cooling and Sockets

A technician is evaluating various processor socket designs, thermal management technologies, and CPU architectural features during a hardware audit. Match each CPU concept or component on the left with its corresponding technical characteristic or operational function on the right.

  • Land Grid Array (LGA)Positions the delicate contact pins on the motherboard socket rather than on the processor package itself.
  • Vapor Chamber CoolingUtilizes a flat, hollow sealed copper enclosure filled with fluid that evaporates and condenses to spread heat across high-TDP surfaces.
  • Thermal Paste (TIM)Fills microscopic surface imperfections between the processor heat spreader and the heatsink base to ensure optimal heat conduction.
  • Simultaneous Multithreading (SMT)Allows a single physical CPU core to execute two concurrent threads of execution by sharing execution units.

Answer

Land Grid Array (LGA) matches the characteristic of having contact pins on the motherboard socket. Vapor Chamber Cooling matches utilizing a flat, hollow sealed copper enclosure filled with fluid that evaporates and condenses. Thermal Paste (TIM) matches filling microscopic surface imperfections between the processor heat spreader and heatsink base. Simultaneous Multithreading (SMT) matches allowing a single physical CPU core to execute two concurrent threads.
Each CPU component or architectural concept correctly aligns with its unique physical or operational property: LGA features motherboard-side socket pins; Vapor Chamber technology uses planar liquid-vapor phase change; Thermal Paste fills microscopic air gaps between heat-generating and heat-dissipating surfaces; and SMT enables two threads per physical core.

Step-by-Step Solution

1
Identify socket pin location for Land Grid Array (LGA).
In LGA sockets, pins are located on the motherboard socket, while the processor package features flat contact pads.
Differentiating LGA from PGA (Pin Grid Array) where pins are located directly on the CPU package.
2
Analyze phase-change cooling mechanisms for Vapor Chamber Cooling.
Vapor chambers operate via liquid evaporation and condensation within a sealed flat enclosure.
Distinguishing vapor chambers from standard heat pipes or liquid AIO loops based on their flat, planar enclosure design.
3
Determine the functional purpose of Thermal Interface Material (TIM).
Thermal paste fills microscopic gaps to remove trapped air between metal surfaces.
Air has low thermal conductivity, so eliminating gaps improves thermal transfer to the cooling unit.
4
Evaluate the architectural operation of Simultaneous Multithreading (SMT).
SMT splits a single physical core into two logical processors for parallel thread handling.
Increases instruction throughput without requiring extra physical CPU cores.

Key Concept

CPU Sockets, Cooling Solutions, and Multithreading Architectures
Rate this question