temperature issue

[Nissehult]

i have fixed my custom water cooling and when i got everything again cpu showing 40-65c and gpu is 40-46, when i got everything for the first time my cpu was at 25-35. i dont know if its the loop or its the block or thermal paste.
Loop: pump > gpu > cpu > radiator > radiator > pump

[c-attack]

Is the Commander Pro temp your coolant sensor? The CPU is definitely way above that, but make sure you are viewing that in relation to load. It's hard to find a quiet moment with no activity these days. Also, my GPU diode temp will sit pretty much at the coolant temp when the voltage is at the baseline. Your's is also probably above that by 12C. It is possible there are two contact issues.

However, before you start pulling things apart, make sure you have proper fluid flow. Stagnant flow could cause both of those item to show more heat. Set the pump to 100% for a few minutes and see if anything changes. If you see a quick drop in temps (seconds), then there likely is a flow issue vs contact.

[Nissehult]

Ye The commander pro is The sensor. When i only had cpu custom cooling it was on 25-35c all The time but now its away to high temp. I tryied on 3000 rpm and The temp on cpu was 40-45c

[c-attack]

You are going to have to be very precise in your observations. The CPU can change temperature in milliseconds and for legitimate reasons. Make sure your CPU load is low and something is not running in the background at an elevated rate.

Did the CPU, GPU, or coolant temperatures suddenly drop when you increased the pump speed?

[Nissehult]

I had fans on 100% and pump on 3000rpm, i had nothing going on The pc, The temperature was sinking fast after i did made settings.

[Corsair GregX]

Please correct me if i happen to misunderstand.
At first, you had a custom cooling only for the CPU. Then later on you added a GPU to the loop?

Can you list your whole custom cooling system or attach an image?

[Nissehult]

ye first i noly had cpu water cooling, then i added gpu
pump > 280radiator > cpu > 360radiator > pump
pump > 360radiator > cpu > 280radiator > gpu > pump
https://imgur.com/a/tFzCoXU

[Corsair GregX]

When upgrading the loop with GPU water block, was the CPU water block removed?

We should focus on CPU load temperatures as it's the only relevant data to check for proper fitment of the CPU water block.
Can you run a CPU stress test and report the CPU temperature and coolant temperature.

[Nissehult]

no the cpu block was still on but i had to take it off cause my motherboard i had then was got broken for some weird reason, that was a asus rog maximus code XI and now i have asus rog Strix Z390-f gaming.
https://imgur.com/a/oBf8duu

[tiborrr]

71°C peak load with ~ 31°C water is as expected for a 9900K (40°C dT).

These are great temps!

[Nissehult]

But when i only had cpu it was 30-35C idle load now its 50-70C i have been changing The loop, thermal paste, shortet The Flow way. The only thing has a good temp is my gpu around 35C idle load and 41 when playing games

[tiborrr]

Sorry, it is impossible to have 35°C in load with 9900K, the dT is usually around 42-43K, meaning you would need to run chilled liquid of -10°C (compressor chilled water) to attain such temperatures under load.

This is a case of wrong observation. Trust me, ~71°C under load is fantastic. There's still around 40°C until thermal limit.