Sometimes I wonder what the thought process behind the gaming aesthetic was. RGB (*if tunable) itself is fine and adds a nice opportunity for personalization, but are those tacky fonts, crystal-facet enclosures, and overall showiness just tasteless or do any gamers actually prefer that look?
I drilled a 100mm diameter hole through to the outside of the house and have a 120mm pc fan blowing air directly out from the cupboard through that. Possibly not an option for everyone, but as a householder with power tools, it seemed like a good idea.
The PC itself is just a motherboard screwed to a flat shelf, with a bracket to hold the graphics card steady.
Works well most of the time, although in recent 30’c ambient temperature, it got up to around 37c in there when I was playing a modern game. My CPU is only 65w but I’ve got a new graphics card and that creates a lot more heat when it’s working hard.
You can add another 120mm inlet fan into the cupboard when your temps get too high. Air is same as water, just cause you put a turbo jet super hyper pump to drain your sink does not mean its operating at max effeciency if your tap is barely open. Air needs unrestricted flow in and out.
There’s a passive vent low down to let room-ambient air in (around the corner to avoid direct noise).
Heat rises, use physics where you can - one regret I have is not putting the outlet higher in the cupboard so it could be fully passive cooled.