There isnt any intake fan but the case is very efficient of cooling itself, so should i swap the exhaust fan for the liquid cooler to cool my cpu, i dont think removing the exhaust fan will have an impact on my computer. Also is it possible if you can find the exact fan size when i used a basic school ruler i got 102mm but im not sure, i tried looking online and even in the instruction manual which is also online (http://www.dell.com/support/home/us/en/19/product-support/product/inspiron-5675-gaming-desktop/manuals) also the cpu cooler isnt the orginal ryzen stock cooler its just blank, I think its a basic dell one. So please can someone find the exact fan size.