- your chassis have very limited space;
- cold plate can be installed directly on chip;
- you need to cool something really hot.
Why you need this
To decrease the GPU temperatures radically and — consequently — to get higher operating frequencies and less noisy set-up. Obviously, it makes sense to perform such procedures only if your GPU really heats a lot and costs higher than average, because a ready-to-use closed cooling system solution with an adapter plate (to be installed on the GPU) plus everything else (more about this coming later) will cost you around 250 USD. Therefore it makes sense to install such system only if you have something like 2080/2080ti.
Overview of the procedure
You remove the standard cooling system from your GPU (additionally, in 90% of cases you also remove the back plate), you install the cold plate and the pump unit, then you install the GPU inside the case, and then you install the heat exchange unit together with the radiator fan inside the case as well.
Below is the description of how to install a liquid cooling system successfully (from the first try!) on your 2080 ti. In this example we will take the Kraken X42 + Kraken G12, because this set-up seems to be optimal for the cooling efficiency vs. noise factor.
Full article: http://boizoff.com/?p=112&lang=en