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#3 readme updates
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Jack Davis committed Jan 17, 2020
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Expand Up @@ -60,18 +60,18 @@ To be published (liquidtux).

The default configuration works well on a PC with a water-cooled CPU and an air-cooled GPU:

- Uses a supply water temperature and case temperature sensor
- Controls supply water temperature to 2-3°C above case temperature
- Uses a supply water temperature sensor and a case temperature sensor
- Controls supply water temperature to 2-3°C above case temperature (initial setpoint is 28°C)
- Fan output percent is generally between 45%-60%, unless CPU is loaded
- If case temperature is within 2°C of supply water temperature, the setpoint will increase in 0.25°C increments when fans are spinning faster than 60% for 20 seconds
- If case temperature is within 2°C of supply water temperature, and fan output percent is greater than 60% for 20 seconds, the setpoint increases by 0.25°C


For example, the fans are controlled to keep supply water temperature at setpoint:

![Example 1.1](doc/images/ex1.1.jpg?raw=true 'Example 1.1')


In the same dataset as ![Example 1.1], and only plotting fan RPMs and DeltaT (return temp - supply temp), observe the fan speeds closely tracking DeltaT (which represents CPU load in the following example):
In the same dataset as *Example 1.1*, and only plotting fan RPMs and DeltaT (return temp - supply temp), observe the fan speeds trailing DeltaT (which represents CPU load in the following example):

![Example 1.2](doc/images/ex1.2.jpg?raw=true 'Example 1.2')

Expand All @@ -96,7 +96,7 @@ When only the CPU is loaded, the setpoint temperature does not change, and the f
A case temperature sensor should be used if using *setpoint adjustment* with PID supply water temperature control:

- When under load and without a case temperature sensor, the setpoint will increase to the maximum before allowing fan speedup
- Without a case temperature sensor, setpoint adjustment may achieve the same result as using a supply water *temperature to fan %-table*
- Without a case temperature sensor, *setpoint adjustment* may achieve the same result as using a supply water *temperature to fan %-table*


## Configuration
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