Concept Input on 3070 Waterblock flow design

Lucas

Caliper Novice
Original poster
Oct 19, 2020
33
9
Hi, I'm building a sub 4L case for my 3070, and for that I need a custom waterblock. I've been doing some simulations and I wonder what you think about this setup.
During simulation I have output 270W in the core and 30W from rest of components. I have set a flow to 1 GPM. This is although my first time designing a waterblock and therefore I would like to hear any insights from you.

Some things I've though about is if the coverage is good enough. It will be a copperblock, that will be 7mm tall, starting 2mm from the PCB. Therefore all other heatcritical components will have thermalpads, such as the VRM between the two capacitors in the top middle. The simulation shows pretty good results at red = 49C, Green 33C and cyan = 26. If I measured correctly the pressure drop is 0.5PSI

This image show the flow through the block. I didn't want to separate the flows but I don't think using just the left one will suffice.


This image is the PCB with temperature map overlaid.
 
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