Heya... what video were you talking about? There are some crazy cooling solutions in vids, including some of WhiteFire's FPGA test videos... which I love by the way. But I've figured out the H20 cooling on the BCU-1525. Right now, the single-phase coolants (like BC-888) don't appear to be keeping the 1525's below 60C to 70C.... while with the H20 block... they'll run at sub-60C (depending on the algo). It was more planning out the material compatibility and pump requirements that I was bouncing around on.

Hi.... I stumbled across your post. I've just ordered my first BCU-1525 FPGA from SQRL Labs.. along with the TUL water-block. Now looking at pumps and radiators that can handle the FPGA.. as well as 1 or 2 more in the future. Was wondering if you've been able to gain any experience with cooling FPGA's that you'd be willing to share. Right now, I'm using the information at https://shop.fpga.guide/ and https://modmymods.com/dimastechr-xilinx-vcu-bcu-fpga-watercooling-kit-4-board-dtk-0004.html as guides for planning out the setup. Hope all has worked out for you and that some of the FPGA guys here were able to help. Best regards.