How can I tell if my fan is working properly? I can hear it running but I think the computer is running hot.

Download speedfan to see what your temps are like. Tell us what the temperatures are and we'll let you know if it's reasonable.

I usually stick something soft like a zip tie end into the fan slowly until I hear it hit the zip tie. If it hits, I know the fan is working. If it doesn't - it's broke :-D

commented: Beautiful in it's simplicity. +2

If it doesn't - it's broke :-D

lol

Well, there's certainly no "false negatives" with sgambles approach but it doesn't leave a lot of room for fans that are spinning but not cooling properly.

i think if i could stick a zip tie in the fan i could see if it was running