H150i (icue) coolant temp sensor location

[dritter]

Does anyone know where the Temp sensor for the coolant is located?  In the pump block or in the radiator? 

In my case, the coolant temps never exceed 40c while  the cpu temps are pushing 95c on the r7 7700x during ada64 stress testing.  

 

[c-attack]

It's in the CPU block area, although the difference in temperature for the liquid between post heat pick up and post radiator heat release is only about 1C difference.  That's about as much heat as it can take out of the water in a single pass.

 

1 hour ago, dritter said:

the coolant temps never exceed 40c while  the cpu temps are pushing 95c on the r7 7700x

This is normal.  Your CPU and coolant temp are only the same when your CPU Voltage is zero.  No voltage and heat from the underlying pins and the CPU, block, and liquid can all be the same temp.  As soon as you start applying voltage to the underside of the CPU it will heat up.  The CPU is cooled conductively, not by the liquid.  All CPU cooling methods are conductive.  It's how they get rid of their waste heat that varies a little.  The liquid serves as a transport from the CPU block (heat pick up) to the radiator (heat drop off), where you try to blow it somewhere else.  Ideally, your liquid temp never goes up at all and it dumps all added heat in a single pass.  That isn't possible on any normal consumer market water cooling system.  The liquid temp is the baseline or lowest possible CPU temp, so for each +-1C of coolant temp, you change your CPU temp by the same +-1C.  With a AMD 7700x, you may see high CPU temperature (voltage + material limits), but you probably don't make a ton of watts at the CPU and thus the AIO doesn't have that much to get rid of.  10-20 min of CPU-Z might only raise your coolant temp 4C depending on fan speed.  Keep that in mind when setting up fan curves.  You don't need to be super aggressive.  Fans dissipate heat from the water.  They won't cool the underside of the CPU.