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Difficulty: MediumMotherboard, RAM, CPU, and Power Issues

An IT technician receives a report regarding a desktop workstation that powers on and boots normally into the operating system during basic web browsing. However, within minutes of launching a heavy video rendering application, the CPU temperature spikes rapidly and the system suddenly powers off completely without displaying a blue screen error. The system will not power back on until several minutes have passed. Which of the following is the most likely cause of this issue?

  1. The CPU heat sink thermal paste has degraded or the cooling fan has failed, triggering internal thermal shutdown protection.Answer
  2. B
    The operating system boot drive has developed severe bad sectors causing an unrecoverable system kernel crash.
  3. C
    The installed system RAM requires SO-DIMM adapter modules to support multi-channel operation under high load.
  4. D
    The power supply unit 24-pin main motherboard connector has reversed polarity pinouts.

Answer

The CPU heat sink thermal paste has degraded or the cooling fan has failed, triggering internal thermal shutdown protection.
When a computer powers off abruptly without a blue screen only during high-load processing and refuses to power back on until time passes, it indicates that thermal limits were breached. Modern CPUs include thermal protection circuits that immediately cut power when temperatures exceed critical thresholds (TjMax), blocking restart until thermal sensors measure a safe temperature.

Step-by-Step Solution

1
Analyze the symptoms presented in the scenario
The system boots normally under light load but abruptly powers off under high computational processing without a software BSOD, requiring a cooling period before it can turn on again.
This behavioral pattern specifically indicates hardware protection mechanisms reacting to physical thermal limits rather than logical operating system errors.
2
Evaluate the power thermal dynamics
Heavy rendering workloads cause rapid heat generation by the CPU. If the thermal solution (thermal paste/fan/heatsink) cannot dissipate heat effectively, internal sensors trigger automatic thermal shutdown.
Processors are engineered with thermal throttling and thermal shutdown limits (TjMax) to prevent thermal degradation and permanent hardware destruction.
3
Confirm the root cause
The mandatory delay before the system will allow a power-on attempt confirms that internal thermals must decline below a safety threshold before motherboard power-good signals permit startup.
Faulty power delivery or disk corruption does not require a temporal cooling period to re-enable basic power cycling.

Key Concept

CPU Overheating and Thermal Safety Shutdown Mechanisms
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Topics

Motherboard, RAM, CPU, and Power Issues

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