Computer processors are designed to run at high temperatures and it's completely normal for a CPU to heat up and to actually get very warm. In fact, temperatures of over 200 degrees Fahrenheit are frequently acceptable. A computer's CPU works by either enabling electric signals to pass through its microscopic transistors or by blocking them. As electricity passes through the CPU or gets blocked inside, it gets turned into heat energy. While a processor in a high-performance workstation may run hot due to heavy use, a processor in a regular computer that overheats is almost always a sign of a malfunctioning system.
Heavy Loads
A CPU's temperature is directly proportional to the amount of electricity that passes through it. In a computer doing typical spreadsheet, word processing and email tasks, the CPU is usually idle most of the time and will frequently run very cool. If you, however, you use the computer to run complicated financial models or to generate 3-D renderings and walk-throughs from architectural plans drawn in computer aided design software, those tasks are much more computationally intensive and will cause the CPU to be more active and to heat up. A properly functioning CPU running at factory-recommended settings with a properly functioning cooling system shouldn't overheat, though, even under heavy loads. If you overclock your CPU, though, it will usually generate more heat.
Airflow Issues
To move the heat from your CPU to the outside of your computer's case, multiple cooling components work together. Regardless of how your computer's cooling system is configured, if air can't flow, it won't work. If you have an overheating CPU, use some compressed air to blow out the case and its inlets and exhaust ports. This should remove the dust that has clogged the airflow passages.
CPU Cooler Failure
Most CPUs are covered by a large cooling assembly that consists of three components -- a fan, a heatsink and a thin layer of thermal conductant that helps to transfer heat from the CPU to the heatsink and fan. If your CPU is heating up and the case isn't dusty, look to see if its cooling fan is spinning and replace the fan if it isn't. Another option is to reattach, or have a professional reattach, the CPU cooler and reapply the thermal tape or grease so that you have a fresh coating.
System Cooling Failure
Your computer's case should also have at least two fans -- a case fan and a fan in the power supply. If either of these two fans aren't functioning, your CPU cooler may be removing your CPU's heat, but your CPU's exhausted hot air ends up sitting in the case where it bakes the CPU and the other components. Replacing any defective case fans should solve the problem.
Heavy Loads
A CPU's temperature is directly proportional to the amount of electricity that passes through it. In a computer doing typical spreadsheet, word processing and email tasks, the CPU is usually idle most of the time and will frequently run very cool. If you, however, you use the computer to run complicated financial models or to generate 3-D renderings and walk-throughs from architectural plans drawn in computer aided design software, those tasks are much more computationally intensive and will cause the CPU to be more active and to heat up. A properly functioning CPU running at factory-recommended settings with a properly functioning cooling system shouldn't overheat, though, even under heavy loads. If you overclock your CPU, though, it will usually generate more heat.
Airflow Issues
To move the heat from your CPU to the outside of your computer's case, multiple cooling components work together. Regardless of how your computer's cooling system is configured, if air can't flow, it won't work. If you have an overheating CPU, use some compressed air to blow out the case and its inlets and exhaust ports. This should remove the dust that has clogged the airflow passages.
CPU Cooler Failure
Most CPUs are covered by a large cooling assembly that consists of three components -- a fan, a heatsink and a thin layer of thermal conductant that helps to transfer heat from the CPU to the heatsink and fan. If your CPU is heating up and the case isn't dusty, look to see if its cooling fan is spinning and replace the fan if it isn't. Another option is to reattach, or have a professional reattach, the CPU cooler and reapply the thermal tape or grease so that you have a fresh coating.
System Cooling Failure
Your computer's case should also have at least two fans -- a case fan and a fan in the power supply. If either of these two fans aren't functioning, your CPU cooler may be removing your CPU's heat, but your CPU's exhausted hot air ends up sitting in the case where it bakes the CPU and the other components. Replacing any defective case fans should solve the problem.
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