CPU Heat How Can Survive
The hottest component in your PC is the CPU. In most cases, the statement was true. But how hot can still be tolerated by your CPU?
The hottest component on the PC, for most cases is on the CPU (central processing unit) or also known as the processor. He also is a component that requires the most input power, compared to other components. Although recent technological developments, the power input required by the VGA card is also increasing.
Most power is released into heat, mostly released by the processor that performs the function of switching. Especially the millions of transistors in a processor unit, and the numbers have also increased dramatically. It is also a major consideration in the design of processor development.
Some types of processors deliberately designed in such a way that requires minimal power. For example, as in the mobile processor. As for desktop processors, most require more power than a mobile processor.
If you notice a tendency of the previous processor technology up to the latest processor, looks a trend decline in voltage (voltage) is lower than processor version of its predecessor. However, this gives the consequences of the use of current (amperes) is greater.
As for energy-saving features or similar functions with different terms, had been able to suppress the power needed when the processor is idle. But overall, the required power consumption of a desktop processor continues to grow.
Not that there was no increase in efficiency for the required power consumption of a processor. As an illustration is as follows: an Intel XScale processor which works at 600 MHz clock is able to provide roughly the same performance with an x86 processor, with power consumption of only 1 / 80 of the required power x86 processors.
Power Consumption
To determine the required power consumption of a processor is a bit confusing. Manufacturers of processors exist that inform two different figures for this power consumption.
Typical thermal power is the power needed in normal load conditions. While the maximum thermal power is measured at maximum load, in conditions of almost fairly extreme. For example, for a Pentium4 processor with a 68.4 Watt-520 for typical thermal power, and 84 Watt for maximum thermal power. Meanwhile, when the processor is idle, the processor will require less power than typical thermal power of 68.4 Watt them.
There are several reasons that cause the processor manufacturer to do this. The tendency of the development of processor technology, although not always the case, which continues to increase in speed. Indirectly, of course, lead to increased power demand. This is offset by power management processor manufacturer, or a better state power. This causes the CPU does not require power all the time in a fixed amount during operation. Depending on the trigger, in this case the CPU load.
The Fast and Thermal Processor
No one has any component level siensi 100% efficiently, and most often happens is some wasted energy into heat. This also happened on the processor.
That is why, most current processors also include a specification for this. The term is often known is the TDP. It's also handy for future reference cooling device manufacturers in designing products. At her to be a reference device where the cooling option.
TDP (Thermal Design Power or Thermal Design Point)
Manufacturers of processors usually include information on the TDP (Thermal Design Power or Thermal Design Point). TDP state power consumption or processor power is required when working, with a normal load. TDP can be a reference product cooling devices, to make sure can handle the heat generated processor. Noteworthy here is that number to calculate the normal load, the version manufacturers. This causes some processors may require greater power, than that contained in the TDP.
At least several test burning software, which is usually used in the benchmarking process, to do so. As BurnK7, CPU Stability test and similar applications. When running the application, the CPU can only work harder, and require more resources than most, and of course the consequence is the heat released is higher processor.
In such conditions, some recent processors have a feature that can prevent overburning. In essence, the processor slow processor, to keep the processor temperature is not increasing. With its Intel SpeedStep, and AMD with AMD with CoolNow. But a consequence, when the processor tries to keep the temperature does not increase, the CPU switching state. Among others with lower clock and / or lower the multiplier. Almost similar to the state when the processor is idle, but with different purposes. When idle, intended to minimize power consumption, and noise level of the cooling device. Meanwhile, when the CPU with a maximum work load, intended to minimize the risk of component damage.
The consequence is that processor performance is no longer maximal. This is important information TDP of a processor. Information of this TDP is not going to actually be useful for all end-users in general. TDP is more useful to note in particular by manufacturers of cooling devices, the PC case or the system integrator. TDP can be used as a reference for designing products in accordance with the development of the processor.
But not the least, especially manufacturers of CPU cooling devices, which include this information in terms of ability to cool the TDP. Of course, this eventually will allow the user as the end user, to adjust the CPU components it uses.
By adjusting the cooling is used, in accordance with the TDP processors used, this can ensure that the CPU remains in the normal working temperature, and prevent throtling that can reduce processor performance. In the table, we include the type of processor and heat estimates that may be generated (thermal design power), and maximum temperatures (maximum cover / case temperature). If the processor you use is not available in the table. For more details, you can see in the URL in the box further. For the record, the maximum cover temperature is the maximum temperature on the surface of the processor.
Processor TDP
TDP term has different definitions, depending on the manufacturer of each processor. What is the difference its definition?
AMD
Thermal Design Power (TDP) was measured in conditions TCASE Max, IDD Max, and VDD = VID_VDD, including the additional heat released from the other components are embedded on the processor on-die from VDD, VDDIO, VLDT, VTT, and VDDA.
That is, the definition of AMD's TDP is the TDP is measured from the maximum flow that may be used by the processor, the default voltage (not ter-over/downclock), while worst-case temperature conditions. This is the maximum power in the form of heat, which may be released by the processor.
Intel
The definition of TDP from the datasheet Intel Northwood are as follows:
"TDP is a recommendation for design reference point, rather than not an indication of the maximum power in the form of heat, which may be released by the processor in the worst conditions."
While the datasheet of Prescott:
"Thermal Design Power (TDP) is intended as a design target for designing a thermal solution for the processor. TDP is not the maximum power, in the form of heat that may be released by the processor. "
Both datasheet states this sentence:
"It is very rare in real world applications that can cause the processor will need, and generate maximum power in the form of heat that may be released by the processor, in a unit time period. Intel recommends to design the processor thermal solution of the TDP, rather than referring to the maximum power consumption. Thermal Monitor feature is available on the processor is expected to help secure processor, the processor generates heat exceeds the possibility of TDP recommendation. "
This means that Intel defines a lower TDP than the maximum power, in the form of heat that may be released by the processor.
Need to Look For
Both processor manufacturers do have a different outlook for the TDP. However, it is not the main subject of discussion this time. During normal use, the Intel version of the TDP is still sufficient to ensure the processor can work with minimal risk of damage.
Meanwhile, to ensure optimum cooling processors already, and in accordance with maximum power in the form of heat that may be released by the processor, which need to be considered is the maximum case / cover temperature. Try to always be below this threshold, to ensure the components of your CPU is working normally.
(Source: PC Media)
The hottest component on the PC, for most cases is on the CPU (central processing unit) or also known as the processor. He also is a component that requires the most input power, compared to other components. Although recent technological developments, the power input required by the VGA card is also increasing.
Most power is released into heat, mostly released by the processor that performs the function of switching. Especially the millions of transistors in a processor unit, and the numbers have also increased dramatically. It is also a major consideration in the design of processor development.
Some types of processors deliberately designed in such a way that requires minimal power. For example, as in the mobile processor. As for desktop processors, most require more power than a mobile processor.
If you notice a tendency of the previous processor technology up to the latest processor, looks a trend decline in voltage (voltage) is lower than processor version of its predecessor. However, this gives the consequences of the use of current (amperes) is greater.
As for energy-saving features or similar functions with different terms, had been able to suppress the power needed when the processor is idle. But overall, the required power consumption of a desktop processor continues to grow.
Not that there was no increase in efficiency for the required power consumption of a processor. As an illustration is as follows: an Intel XScale processor which works at 600 MHz clock is able to provide roughly the same performance with an x86 processor, with power consumption of only 1 / 80 of the required power x86 processors.
Power Consumption
To determine the required power consumption of a processor is a bit confusing. Manufacturers of processors exist that inform two different figures for this power consumption.
Typical thermal power is the power needed in normal load conditions. While the maximum thermal power is measured at maximum load, in conditions of almost fairly extreme. For example, for a Pentium4 processor with a 68.4 Watt-520 for typical thermal power, and 84 Watt for maximum thermal power. Meanwhile, when the processor is idle, the processor will require less power than typical thermal power of 68.4 Watt them.
There are several reasons that cause the processor manufacturer to do this. The tendency of the development of processor technology, although not always the case, which continues to increase in speed. Indirectly, of course, lead to increased power demand. This is offset by power management processor manufacturer, or a better state power. This causes the CPU does not require power all the time in a fixed amount during operation. Depending on the trigger, in this case the CPU load.
The Fast and Thermal Processor
No one has any component level siensi 100% efficiently, and most often happens is some wasted energy into heat. This also happened on the processor.
That is why, most current processors also include a specification for this. The term is often known is the TDP. It's also handy for future reference cooling device manufacturers in designing products. At her to be a reference device where the cooling option.
TDP (Thermal Design Power or Thermal Design Point)
Manufacturers of processors usually include information on the TDP (Thermal Design Power or Thermal Design Point). TDP state power consumption or processor power is required when working, with a normal load. TDP can be a reference product cooling devices, to make sure can handle the heat generated processor. Noteworthy here is that number to calculate the normal load, the version manufacturers. This causes some processors may require greater power, than that contained in the TDP.
At least several test burning software, which is usually used in the benchmarking process, to do so. As BurnK7, CPU Stability test and similar applications. When running the application, the CPU can only work harder, and require more resources than most, and of course the consequence is the heat released is higher processor.
In such conditions, some recent processors have a feature that can prevent overburning. In essence, the processor slow processor, to keep the processor temperature is not increasing. With its Intel SpeedStep, and AMD with AMD with CoolNow. But a consequence, when the processor tries to keep the temperature does not increase, the CPU switching state. Among others with lower clock and / or lower the multiplier. Almost similar to the state when the processor is idle, but with different purposes. When idle, intended to minimize power consumption, and noise level of the cooling device. Meanwhile, when the CPU with a maximum work load, intended to minimize the risk of component damage.
The consequence is that processor performance is no longer maximal. This is important information TDP of a processor. Information of this TDP is not going to actually be useful for all end-users in general. TDP is more useful to note in particular by manufacturers of cooling devices, the PC case or the system integrator. TDP can be used as a reference for designing products in accordance with the development of the processor.
But not the least, especially manufacturers of CPU cooling devices, which include this information in terms of ability to cool the TDP. Of course, this eventually will allow the user as the end user, to adjust the CPU components it uses.
By adjusting the cooling is used, in accordance with the TDP processors used, this can ensure that the CPU remains in the normal working temperature, and prevent throtling that can reduce processor performance. In the table, we include the type of processor and heat estimates that may be generated (thermal design power), and maximum temperatures (maximum cover / case temperature). If the processor you use is not available in the table. For more details, you can see in the URL in the box further. For the record, the maximum cover temperature is the maximum temperature on the surface of the processor.
Processor TDP
TDP term has different definitions, depending on the manufacturer of each processor. What is the difference its definition?
AMD
Thermal Design Power (TDP) was measured in conditions TCASE Max, IDD Max, and VDD = VID_VDD, including the additional heat released from the other components are embedded on the processor on-die from VDD, VDDIO, VLDT, VTT, and VDDA.
That is, the definition of AMD's TDP is the TDP is measured from the maximum flow that may be used by the processor, the default voltage (not ter-over/downclock), while worst-case temperature conditions. This is the maximum power in the form of heat, which may be released by the processor.
Intel
The definition of TDP from the datasheet Intel Northwood are as follows:
"TDP is a recommendation for design reference point, rather than not an indication of the maximum power in the form of heat, which may be released by the processor in the worst conditions."
While the datasheet of Prescott:
"Thermal Design Power (TDP) is intended as a design target for designing a thermal solution for the processor. TDP is not the maximum power, in the form of heat that may be released by the processor. "
Both datasheet states this sentence:
"It is very rare in real world applications that can cause the processor will need, and generate maximum power in the form of heat that may be released by the processor, in a unit time period. Intel recommends to design the processor thermal solution of the TDP, rather than referring to the maximum power consumption. Thermal Monitor feature is available on the processor is expected to help secure processor, the processor generates heat exceeds the possibility of TDP recommendation. "
This means that Intel defines a lower TDP than the maximum power, in the form of heat that may be released by the processor.
Need to Look For
Both processor manufacturers do have a different outlook for the TDP. However, it is not the main subject of discussion this time. During normal use, the Intel version of the TDP is still sufficient to ensure the processor can work with minimal risk of damage.
Meanwhile, to ensure optimum cooling processors already, and in accordance with maximum power in the form of heat that may be released by the processor, which need to be considered is the maximum case / cover temperature. Try to always be below this threshold, to ensure the components of your CPU is working normally.
(Source: PC Media)
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