Silent server

Hi

i decided to rebuild my Supermicro build so i can actually have in the house.

the way forward is silent but also cool
these 2 things do not go hand in hand though :-(

I have 2 main questions

1: CPU cooler vertical or horizontal

2: push in air from the top or suck it out ?

i am going to install fans in the lid to either push in or suck our air or both.

i am thinking about cutting 2 holes center above the CPU coolers and then use a duct to get cool air to the CPU and then have...

Silent server