I have been thinking about adding a 2nd case fan for almost a year to the front of my computer as an intake fan. Thinking could it hurt to move more air in and keep all components happy and working well for many years.
Want to use an OEM 4 wire case fan (FOXCONN PV902512PSPF 0J) pulled from a decommissioned Lenovo H430.
If I did, I see a AUX1 (the mobo has 2 AUX fan headers) fan header on the motherboard. I got this info the IdeaCentre 710 Maintenance Manual. AUX1 Fan socket is number eleven below.
Is it as simple as just plugging the fan in and pushing the rubber dampeners into the metal chassis... would I need to change anything within the BIOS?
 
If I did install it but later wanted to take the fan out would the BIOS be okay with the than missing AUX1 fan or would I need to change something to get back to where I am today with no fan installed on AUX1 fan.
 
I found looking at another 710-25ISH on Newegg that has a photo of just what I want to do.

The BIOS is the fear of it, not knowing if it will accept a another case fan not installed at conception in the factory. That and it will sorta create a hard to clean spot collecting dust but I think it would be beneficial to push cool air to the 1050 Ti.
 
Thank you for your reply MSim.

Front intake fans are a must. It significantly impacts cooling like 10+ cooler temps. Make sure you have an opening so it can breath though. Plug any non LED fan into the mobo and you'll be fine. The fans with lights require a bit more power and thus might not work with some fan inputs on certain mobos.