Custom water cooling overclocking issue

[Éponge à daronnes]

Okay, i've made few custom watercooling builds and in all of my builds there is the same trouble totally illogical. If I overclock my processor "Ex : i9 7980XE : 4200mhz to 4300mhz", why the temperature pass during the OCCT test from 79º to 100º??!!! The watercooling is supposed to let us overclock the cpu more that only 100mhz and the custom water cooling loop is normally supposed to be the best cooler option (I say that because in the description of the overclock of the cpu it's written that overclocking will certainly need an efficiency cooler system) and after few test, i've made the conclusion that all-in-one watercooling are more efficients than custom loop (without test and with the same frequency : all-in-one 51º and custom 65º wtf?). It could be because the liquid comes first in the graphics card and then he comes to the cpu but i put a second radiator and it changed nothing (and i also inverted the loop : the liquid comes first in the cpu and then in the graphics cards but nothing changed). I don't know, a lot of people in real life have managed to overclock their cpu (linus tech tips with the i9 7980XE) to more than 5GHz and we're blocked at 4,3GHz (and not working that much). And if you put more radiadors (like one at the beginning of the loop just before the pump and one between the graphics card and the cpu), the temperature is not supposed to be more stable and cooler? Like, if the liquid that comes directly from the graphics card was at 61º (exemple) and then I put a radiador, the liquid is supposed to fall at 45º (also and exemple) so the cpu could be cooled better no ?. So I'm saying that the processor overclocking fonctionality is for the moment useless because we can't really overclock it (or just 100mhz, it will not change nothing in your performance). I know that you're doing an amazing job but could you please fix that issue ?

Thank you in advance

[Stocky]

I have sent them an official request / very detailed proposal to have this issue rectified. Because even the core voltage doesn't do anything but help stability, thats what should be dictating our temperatures not our core clocks.

The saddest part is, there is an air cooler in the game that gives 173cfm of cooling opposed to 150cfm in a custom loop, you can leave the CPU out of the loop and use the really kick ass liquid cooled GPU's and achieve 10-15 degrees lower temps, its ugly as ♥♥♥♥ though.

[Éponge à daronnes]

Thank you a lot

[DOSC]

It doesn't matter where in the loop you put the radiator. It only matters how large the radiator is and how many of them you have (here is a video about the topic: https://www.youtube.com/watch?v=RnPB_q51iVk )

But anyways, custom loops should be more potent in the game

[meokater]

I just tested a Custom-Water-Version of my OC-System against my OC with all settings beside RAM to Default. The CPU was nearly 20°C warmer with 2 Rads and the Water GPUs did over 1k less Points in 3dmark while being 8°C warmer...something is here not balanced correctly