Look up the Lian Li 205 Mesh from the manufacturer's website. Go to their specifications for it and read the GPU size restrictions.
https://lian-li.com/product/lancool-205/Now go look up the GTX 1070 Ti from the manufacturer's website. I don't know if you have the NVidia/FE version or if you have an AIB version (Gigabyte, Asus, MSI, etc.). Once you find it, look up the GPU size.
Lastly, I don't know what kind of cooling you're using (fans or radiator+fans). Based on the questions you've asked so far, I doubt you're using a pump+reservoir. But look up the thickness of your fans or radiator+fans to see if it will reduce the space in the case.
This post was edited by Xet on Aug 12 2021 06:22pm