Where is the description of the mini fan ?
914136
My guess is that they are nothing more than an injection molded fan (Thermoelastomer blades with a rigid plastic overmold) pressed on to the end of a small DC motor.  If it is coming from China, don't expect great quality.  Chances are it is only designed to work a few times.  The switch contacts are probably bits of brass that touch eachother when you push the button.
742139
An energy-efficient, carbon-composite, centrifugal fan designed to direct a high flow rate of air from above to the radially outward direction driven by an electric motor.\n\nWhy do you ask?  Do you have any good referrals?
572664
Its not the fan on your hard drive (it doesnt actually have one!).  It is possibly a dirty fan, and you may want to open the case up and clean the fans.  Just use a paintbrush (the big house painting kind) and you can easily wipe of all o the dust on the fans and heatsinks in the computer.  If it sounds like a loud BUZZing noise, then it is likely the bearings on the fan went out and it will need to be replaced.  If it has always been this loud, consider buying a more expensive "quiet" fan to replace it.
627049
I have bought a lot of cases and have never seen one with an owners manual except for the Coolermaster Stacker which is pretty complicated. Most at best come with a flimsy piece of paper with some poorly translated non-information. If it is a side usb case, the only info you might need is the pin order of the USB plug to the header on the motherboard, otherwise what else is there? The motherboard manual should tell you everything else.
48605
If it's a steady whine, with no fits and starts, it's going to be a fan.  The possibilities are power supply fan, cpu fan, video card fan, and system cooling fan. All of them with the exception of the video card fan, are easily replaceable by a layperson with nothing more than a screwdriver.  Luckily, the video card fans are small and less likely to produce much of a noise, so it's probably one of the other three.
1093016
Did you check the fan? It may be getting overheated for some reason.
440343
There are several fans inside for cooling.  There is one on your processor (the actual computer chip inside), power supply and probably your video card.  If you are just beginning to notice it, there may be a cable or something that is brushing against the fan.  You might consider opening the case and just making sure nothing is rubbing.
244796
do you need a fan? cuz you're HOTT!\nhad it used on me. was the stupidest ever!
118916
the air at the path of the rotating blade of the fan is forced to flow. pressure is directly proportional to the speed of the fan blade
868552
It is usually located right in the front, it is a little blackish redish rectangle.\n\nGoto your device manager and it will have an infrared device listed if your computer has one.
620015
Check your power-supply fan.
277678
well. it looks tiny to all of us, but infact it has millions of transistors arranged in particular circuitry within itself doing the job. \n\nthis link will help you in detail\nhttp://computer.howstuffworks.com/microprocessor.htm
476209
I think everyone is right about the fan.\nI have a fan that is making noises.\nIt doesn't do it all the time.\nI leave my pc on all the time (another debate)\nbut sometimes it growls at me and sometimes it is quiet.\nIt think eventually I will have to replace it because I don't know if you can oil it.\n\nThe first link I give you below shows how to replace your computer fan yourself very cheap.\nThen I add some links to help see what to buy later.\nGood Luck\nSteffy
341927
Hi....well i was joking with mini in that question...u r one of my fav answerers.....please don't stop answering my questions....\nbye
153833
Be careful.  Get fans around it.  Your going to need a new fan, it could be tomorrow or in a couple of months, but it is about to quit.  Until you can get a new fan, get a portable fan down there to cool your system down or you could end up with "melt down".  Good luck.
287753
change the fan, get a new one.
882147
How about a small fan with a bowl of water in front of it to increase air humidity.  It may be worth trying...;