I am in need of replacing my CPU. This morning when I powered on my computer I got a Bio CPU Fan Error. I right away I pulled the side panel of my computer case and the fan was running, so to test it. I powered down, and restarted the computer and the fan was sticking before starting. After a good cleaning with the compressed can air I think I might have fixed the problem ( It is no longer stick, the fan moves freely now, and after testing it 10 times it seems to work ) But I am going to replace the CPU because it is better safe then sorry.
So here is where my problem starts. While I am not a moron when it comes to computers. I even built my own, and studying the subject. ( Mostly networking ) I do like to get a second opinion because with my luck I will screw on my own machine. ( and my luck has been horrible lately )
Not sure what you mean by air tunnel...... you mean those silly things dell put on some systems with the huge heatsink and a plastic tunnel leading to the front of the case and a big 120mm fan? If you do you will likely want to rip that plastic tunnel out before installing that new one.