Adjusting the speed of my water cooling pump is useful.
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Furtipoum
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Furtipoum Posted messages 26 Status Membre -
Furtipoum Posted messages 26 Status Membre -
Hello*
Will increasing the speed of the pump in my water cooling system lower the temperature of my CPU?
Thank you in advance*
(*) Basic elements of politeness added by CCM moderation!.............................
Will increasing the speed of the pump in my water cooling system lower the temperature of my CPU?
Thank you in advance*
(*) Basic elements of politeness added by CCM moderation!.............................
1 réponse
Hello
Theoretically, the amount of liquid will pass more times each hour through the CPU and the ventilated radiator, which would be beneficial.
But we also know that the efficiency of the ventilated radiator is best for "a certain difference" in temperature between the liquid and the air that cools it, which can be 15°, for example.
Therefore, we cannot assume that cooling will be directly proportional to the pump speed.
We also have to consider that the CPU heats up more or less over time depending on usage, except when conducting a stress test, for instance, during which the CPU consistently produces maximum heat.
For example, there are games that heat the CPU more than others.
There is also the regulation of fan speed, which varies according to settings and may depend on a temperature sensor for the CPU and one for the liquid; they don’t always run at full speed.
Additionally, there is the noise from the fans and sometimes the pump. One does not always choose to have the CPU as cold as possible; it can function for a long time at temperatures we wouldn’t prefer for ourselves.
In practice, all conditions are never the same from one PC to another and depend on the temperature or humidity of the air in the room and within the PC.
There are therefore so many parameters and sometimes personal choices that there is plenty of room to conduct tests and find one or more “profiles” of personal settings for each PC and each usage.
More pump or more watercooling and/or case fans or a more favorable liquid temperature, even if it is a few degrees higher, could ultimately cool the CPU more for a given usage, which is not entirely impossible in practice.
Theoretically, the amount of liquid will pass more times each hour through the CPU and the ventilated radiator, which would be beneficial.
But we also know that the efficiency of the ventilated radiator is best for "a certain difference" in temperature between the liquid and the air that cools it, which can be 15°, for example.
Therefore, we cannot assume that cooling will be directly proportional to the pump speed.
We also have to consider that the CPU heats up more or less over time depending on usage, except when conducting a stress test, for instance, during which the CPU consistently produces maximum heat.
For example, there are games that heat the CPU more than others.
There is also the regulation of fan speed, which varies according to settings and may depend on a temperature sensor for the CPU and one for the liquid; they don’t always run at full speed.
Additionally, there is the noise from the fans and sometimes the pump. One does not always choose to have the CPU as cold as possible; it can function for a long time at temperatures we wouldn’t prefer for ourselves.
In practice, all conditions are never the same from one PC to another and depend on the temperature or humidity of the air in the room and within the PC.
There are therefore so many parameters and sometimes personal choices that there is plenty of room to conduct tests and find one or more “profiles” of personal settings for each PC and each usage.
More pump or more watercooling and/or case fans or a more favorable liquid temperature, even if it is a few degrees higher, could ultimately cool the CPU more for a given usage, which is not entirely impossible in practice.
I have a program running on my CPU and it always uses 100% of the CPU. The CPU will reach the maximum frequency allowed by its temperature because it has an automatic temperature limitation by frequency regulation on each core.
If one day I manage to extract a bit more heat from the CPU at every moment thanks to a more favorable setting of the water cooling, the frequency at every moment on each core will be able to rise a bit more, but the maximum temperature will remain the same, that of the automatic temperature limitation by regulation on each core. After 24 hours, the CPU temperature will not have changed compared to the day before, but the program will have worked a bit faster in those 24 hours and will have done a bit more work than the day before. It will complete the same amount of work in slightly fewer days or hours.
The more favorable setting of the water cooling may not have been achieved by a faster pump speed but perhaps by letting the temperature of the liquid rise slightly to reach the optimal performance of the radiator, meaning the difference between the temperature of the air and the liquid which allows the maximum amount of heat to be expelled from the PC in the same time.
In the end, the liquid is a bit warmer, the CPU is at the same temperature, the pump may have run a bit slower, and the PC expels the largest amount of heat evacuated through work done faster. It’s this reduced working time that leads me to conclude that the water cooling adjustment is better. It’s small tests of slightly different adjustments that help find the best for this PC. Here I can measure the difference in temperature between the liquid and the air to announce that it is this difference that makes the performance of this cooled radiator better.
I did not use the water cooling adjustment to achieve a lower CPU temperature but to make it work faster.
I did not try to save the CPU; I trusted the temperature limits imposed by the manufacturer through frequency regulation.
Experience has shown me that this CPU lasts for many years; it is the fans that wear out first. They make a bit more mechanical noise, but the CPU still does not make any calculation errors and does not slow down. Before dying, the CPU became obsolete for this use due to the release of new CPUs that work faster while consuming less.