The computer heats up, is it better to remove the side cover, or put an additional fan on it?

Question

Iron

It so happens that 1 valve works for blowing in (front, bottom), and 2 for blowing out (PSU and under it), and an air bag appears in the area of ​​\u200b\u200bthe video card and the south bridge under load, which is better to remove the side cover, or put a fan on the opposite south mota and vidyuhi?

Answer 1

Installing a fan is more efficient, but energy consumption will increase.
First, remove the cover, check if this will be enough. Of course, only if no one lives nearby who is able to accidentally climb inside the system unit.