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Difficulty: MediumCPU Architecture Cooling and Sockets

A desktop workstation utilized for high-load rendering tasks undergoes unexpected shut downs after running under heavy processing loads for several minutes. A technician inspects the system hardware and notes that while the heatsink is properly mounted, the CPU automatically reduces its operating frequency and core voltage when temperatures reach maximum thermal limits, yet power consumption remains too high to keep temperatures stable. Which protection mechanism is the CPU actively employing in an attempt to prevent permanent thermal damage?

  1. Thermal throttlingAnswer
  2. B
    Power supply wattage reserve limiting
  3. C
    POST beep code interrupt signal
  4. D
    Display driver artifact compensation

Answer

The correct answer is thermal throttling, which automatically lowers CPU clock speed and core voltage when thermal safety limits are exceeded.
Thermal throttling is a hardware-level safety mechanism built into modern CPUs. When internal thermal sensors detect that the processor has reached its maximum safe temperature limit (TjMax), the CPU automatically reduces its clock speed (frequency) and core voltage to diminish thermal output and protect the silicon from permanent hardware failure.

Step-by-Step Solution

1
Analyze the reported hardware symptom.
The CPU experiences extreme heat under load and responds by lowering frequency and core voltage.
Processors feature internal thermal sensors and hardware safeguards designed to prevent catastrophic heat degradation.
2
Identify the specific processor safety feature described.
The automatic scaling down of clock speeds and voltage under thermal stress is known as thermal throttling.
Thermal throttling slows execution performance to bring operating temperatures back within safe physical thresholds.

Key Concept

CPU Thermal Throttling
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Topics

CPU Architecture Cooling and Sockets

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