This is the side fan that is attached to the side cover.
2) Directly opposite to the big fan. This one is located next to what I assume to be the motherboard and RAM stuff. Has the label INTEL on it so I'm not sure if its like a processor or something > . <
Don't know if its working or not since I was worried about having the cover off with PC turned on.
It's working because your computer will auto-shutdown without it and SpeedFan is reporting on it.
This is the CPU fan, it is the only fan that you have that is being monitored.
Under this fan is an aluminum, finned device called a heat sink. This heat sink can get clogged with dust and this can drastically degrade its function.
It's hard to get it really clean without removing the CPU fan.
Under the heatsink is thermal grease and under that is your CPU. Sometimes the thermal grease needs renewing.
The problem I found seems to be the intake fan but if you guys think its necessary, I will have another look.
The intake fan is not an absolute necessity, but they do help push cool air into the case.
3) A small fan located at the back and top of the cabinet. Has its own little area with what I assume to be the power supply. This fan is working.
Yep, this is the PSU fan. Its primary function is to cool the power supply but it can help evacuate hot air from the case interior.
4) Directly underneath number 3, a small fan which I now know is called the exhaust fan. It is working.
To get a good airflow through the case, this fan is very important.
5)At the very front and bottom of the cabinet, which i think should be the intake fan. This one is not working as the blades are not spinning
If it has failed, I would replace it with a quality fan that features an rpm signal and plug it into a motherboard fan header.
This alone will not fix your issue.
Your CPU is running hot....see the above comments.
Your GPU is running hot...sometimes graphics cards have their own little fan, sometimes just a heatsink.
To prove whether or not it is a case airflow issue do this:
First do your cleaning.
With the side cover off the case, direct a common desk fan at the interior of the open case. Now start the computer and observe the temps.
If you're lucky temps will stay normal under this experiment....you will just need to upgrade your exhaust/intake situation to achieve good air exchange.
If it doesn't improve with the desk fan test, you have other issues like thermal paste problems.