Replace the suspect CPU with a known good CPU of the same make and model.ExplanationReplacing the suspect CPU with a known good CPU of the same make and model is the best way to deternine if the CPU is the problem. There is only one variable in this test. If the system stops crashing after the CPU was replaced, it is safe to assume that the suspect CPU was not functioning properly.Any other course of action introduces more variables to the environment. If intermittent problems continue to occur, you are no closer to finding the cause.
  • To improve system performance you have configured a motherboard to run with a higher multiplier than what the CPU is specified to use. Since doing this the system has become unstable and crashes frequently.What should you do to restore system stability?
  • Your system crashes at various times, sometimes on startup, sometimes when running a software application, sometime when a certain group of applications is running. You suspect a malfunctioning CPU but none of the common issues seem to be present. You have not configured overclocking. There is no overheating. The CPU is seated correctly and locked into its socket.What can you do to definitively determine if the CPU is causing the system crashes?
  • You have just upgraded the CPU on your computer. You consulted the motherboard documentation to make sure the CPU is compatible with the motherboard. You turned the system on and it locks up shortly after startup. Which steps should you take first?
  • To improve system performance you have configured a motherboard to run with a higher multiplier than what the CPU is specified to use.What is this practice called?
Electrostatic discharge (ESD)ExplanationElectrostatic discharge is the only factor from among the possible choices that cause a CPU to fail prematurely. Be careful while working on your CPU to avoid ESD by working on a static format grounded with a wrist strap.
  • You have just finished upgrading the CPU in your desktop system. After running the system for about 15 minutes, the system spontaneously shuts down. What should you do first to troubleshoot the problem?
  • Lately your computer is spontaneously shutting down after only a few minutes of use. What is the most likely cause?
  • You have just upgraded the CPU on your computer. You consulted the motherboard documentation to make sure the CPU is compatible with the motherboard. You turned the system on and it locks up shortly after startup. Which steps should you take first?
  • Since it has no moving parts, a CPU will usually work properly for several years. Which of the following is a common factor that might cause a CPU to fail prematurely?
Overheated CPU.ExplanationAn overheated CPU will cause a spontaneous reboot or intermittent system crashes. A spontaneous reboot can also be caused by a bad power supply or device driver. A clicking noise when reading or writing data from the hard disk is an early sign of a failing drive. A failed UPS (or failed battery in the UPS) would result in a complete loss of power to the computer if the outlet (or wall) power was lost. A system notification would indicate whether there is a failed drive as it would be not allow reading or writing.
  • What are two major disadvantages to overclocking the CPU?
  • Lately your computer is spontaneously shutting down after only a few minutes of use. What is the most likely cause?
  • Lately your computer is spontaneously rebooting and freezing. What is the most likely cause?
  • You have just finished upgrading the CPU in your desktop system. After running the system for about 15 minutes, the system spontaneously shuts down. What should you do first to troubleshoot the problem?
An accumulation of dust has gradually built up.ExplanationOver time an accumulation of dust can gradually build up and cause significant overheating by constricting airflow through the system case. Vents holes and heatsink fans can become clogged with dust, which prevent the dissipation of heat. Remove the dust with compressed air or an anti-static vacuum.The BIOS should be flashed when firmware updates are available but failing to do this will not lead to system overheating. Switching the power supply to the wrong voltage can damage system components, but this would not lead to the system locking up more frequently over time the damage would happen immediately. A malfunctioning heat monitor could cause the system to lock up, but the frequency is likely to be intermittent, not consistently increasing in frequency.
  • You have just upgraded the CPU on your computer. You consulted the motherboard documentation to make sure the CPU is compatible with the motherboard. You turned the system on and it locks up shortly after startup. Which steps should you take first?
  • You have just finished upgrading the CPU in your desktop system. After running the system for about 15 minutes, the system spontaneously shuts down. What should you do first to troubleshoot the problem?
  • After working without problems for a couple years, your computer has begun to lock up. You suspect that it is a thermal issue but you can't find any component that is not functioning correctly. You have not replaced the CPU or installed any new devices. The CPU cooling fan and the power supply fan are working properly. The lock-ups are happening with increasing frequency.Which of the following is a common condition that might explain these symptoms?
  • Lately your computer is spontaneously shutting down after only a few minutes of use. What is the most likely cause?
Make sure the CPU is seated and oriented properly, and locked into the socket.Look for something that could be causing the new CPU to overheat.ExplanationThe most common issues that occur when a new CPU has been installed areThe system locks up because it gets too hot. You should check for the following:The heatsink and fan are not placed correctly or are in poor condition.Thermal paste or the thermal pad have not been used between the processor and the heatsink.The heatsink is not firmly attached to the processor.The system locks because the CPU is not properly seated or is oriented incorrectly.
  • You have just finished upgrading the CPU in your desktop system. After running the system for about 15 minutes, the system spontaneously shuts down. What should you do first to troubleshoot the problem?
  • You have just upgraded the CPU on your computer. You consulted the motherboard documentation to make sure the CPU is compatible with the motherboard. You turned the system on and it locks up shortly after startup. Which steps should you take first?
  • Since it has no moving parts, a CPU will usually work properly for several years. Which of the following is a common factor that might cause a CPU to fail prematurely?
  • After working without problems for a couple years, your computer has begun to lock up. You suspect that it is a thermal issue but you can't find any component that is not functioning correctly. You have not replaced the CPU or installed any new devices. The CPU cooling fan and the power supply fan are working properly. The lock-ups are happening with increasing frequency.Which of the following is a common condition that might explain these symptoms?
Overheated CPUExplanation An overheated CPU will cause a spontaneous reboot or intermittent system crashes. A spontaneous reboot can also be caused by a bad power supply or device driver. A clicking noise when reading or writing data from the hard disk is an early sign of a failing drive. A failed UPS (or failed battery in the UPS) would result in a complete loss of power to the computer if the outlet (or wall) power was lost. A system notification would indicate whether there is a failed drive, as it would not allow reading or writing.
  • What are two major disadvantages to overclocking the CPU?
  • Lately your computer is spontaneously rebooting and freezing. What is the most likely cause?
  • You have just finished upgrading the CPU in your desktop system. After running the system for about 15 minutes, the system spontaneously shuts down. What should you do first to troubleshoot the problem?
  • Lately your computer is spontaneously shutting down after only a few minutes of use. What is the most likely cause?
Back off on the overclocking settings until the system runs in a stable manner.ExplanationConfiguring a motherboard to run with a higher multiplier than what the CPU is specified to use is called overclocking. If the system becomes unstable and crashes frequently the multiplier may be set higher than the CPU can handle. To resolve this lower the multiplier until the system becomes stable again.The real-time clock on the motherboard is not a factor in this scenario and has no role in overclocking. If the power supply is set to the wrong voltage system components can be damaged but not cause the behaviour described in the scenario. BIOS firmware is not factor in overclocking issues.
  • To improve system performance you have configured a motherboard to run with a higher multiplier than what the CPU is specified to use. Since doing this the system has become unstable and crashes frequently.What should you do to restore system stability?
  • You have just upgraded the CPU on your computer. You consulted the motherboard documentation to make sure the CPU is compatible with the motherboard. You turned the system on and it locks up shortly after startup. Which steps should you take first?
  • Your system crashes at various times, sometimes on startup, sometimes when running a software application, sometime when a certain group of applications is running. You suspect a malfunctioning CPU but none of the common issues seem to be present. You have not configured overclocking. There is no overheating. The CPU is seated correctly and locked into its socket.What can you do to definitively determine if the CPU is causing the system crashes?
  • To improve system performance you have configured a motherboard to run with a higher multiplier than what the CPU is specified to use.What is this practice called?
OverclockingExplanationConfiguring a motherboard to run with a higher multiplier than what the CPU is specified to use is called overclocking.
  • Since it has no moving parts, a CPU will usually work properly for several years. Which of the following is a common factor that might cause a CPU to fail prematurely?
  • Your system crashes at various times, sometimes on startup, sometimes when running a software application, sometime when a certain group of applications is running. You suspect a malfunctioning CPU but none of the common issues seem to be present. You have not configured overclocking. There is no overheating. The CPU is seated correctly and locked into its socket.What can you do to definitively determine if the CPU is causing the system crashes?
  • To improve system performance you have configured a motherboard to run with a higher multiplier than what the CPU is specified to use. Since doing this the system has become unstable and crashes frequently.What should you do to restore system stability?
  • To improve system performance you have configured a motherboard to run with a higher multiplier than what the CPU is specified to use.What is this practice called?
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