The article explained how to take care of the vibration but it did not tell that you would still hear the hard drive if it was noisy when reading, writing or seeking. The easiest way to take care of vibrations without paying money at all is to use some foam rubber that is placed beneath the hard drive. I’m using this technique for years with great success. This does not take care of the normal noises of the hard drive though.

The only thing that is really helping here is to either buy hard drives that have very low running noises or silence the hard drive, meaning putting it into a noise reduction case or the complete PC tower. If you do that you need to take care of a problem that is arising: heat. If you put the hard drive in a case that is reducing noises you will notice that it will run at a higher temperature which can lead to data loss and errors over time.

This means that if you silence the hard drive or the PC tower you need to make sure that everything is staying cool inside. Here is what I did. I first bought a hard drive that was making a high pitching sound whenever it was running. This was not endurable at all and I decided to trade it in for a almost silent hard drive which was causing vibration in my PC case. I placed the hard drive on the rubber foam which got rid of that problem.

That’s one reason why I really like the Flash SSD drives. They don’t produce such noises. It will take some time before they become affordable enough but it will be a great relief for everyone who likes silent PCs.

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There are not actually that many different noise makers in your computer, the dominant ones are fans and mechanical devices. The article will conclude with three ways to reduce the noise level of your computer starting with free alternatives, fan replacement and noise reduction hardware.

Pc Noise Makers

• Power Supply Fan
• CPU Fan
• GPU Fan
• Case Fans
• Northbridge Fan
• Hard Drives
• CD / DVD Drives

Five of the noise makers in the list are fans while the last two are mechanical devices. It is easy to distinguish between fans and mechanical devices but it becomes a little bit harder to identify the loudest fan in your system.

Open your case and start your computer. Try to identify the loudest fan by simply listening to your computer. Is it possible to identify the noise maker ? If you have troubles spotting the loudest one try the following technique that helps you identify it.

Locate a fan and stop the rotation of that fan for a few seconds by pressing one of your fingers against it. Make sure you do not put your fingers inside the fan but the central area that connects all the rotating blades. If the noise level drops you identified the noise maker. The next action depends on the type of fan:

Free Methods to reduce the noise level:

There are several free methods that could reduce the noise level of your computer.

• Software driven

Software like Speedfan or RivaTuner can control the fan speed of certain devices that support this feature. You could reduce the rotation speed of your cpu, gpu and case fans this way. I’m not aware that a similar product exists for power supply fans and northbridge fans.

It is furthermore possible to reduce the reading speed of your CD and DVD drives to reduce their noise level. Software exists for Linux and Windows.

Use Technology like AMDs Cool’n'Quiet to reduce the heat output of your system which could result in a lower spinning fan.

• Firmware Updates

Updating the firmware of a device could result in additional functionality. I had to upgrade the firmware of my Nvidia 6600 GT card to be able to read its temperature which I needed to control the fan speed.

It might be worth checking out if there are updates for your motherboard, graphic card and CD / DVD drives.

• Temporary Solutions

I once had the problem that the high pitching noise that my hard drives made would drive me crazy. I had no means of purchasing dampening devices at that time and had to find a solution that would reduce the noise. I came up with a solution that I found in a forum on the internet.

I used the foam that the hard drive shipped with and placed it on the bottom of my computer. I then connected the hard drive as usual and placed it on that foam. The noise was not there anymore. This method worked great but would pose problems if you want to transport your computer.

• Remove Fans

I know of users who have three or more case fans running at the same time thinking of the more the better. This is not always the case. If your system is cool enough you could try and remove some of the fans to reduce the overall noise level.

You should only remove them if you hear them. Does not make sense to remove something that does not make that much noises.

Low Cost Solutions:

It is not really that expensive to reduce the noise level of your computer. You will never get a truly silent computer but the level can be reduced that you can barely hear the computer running which is the optimum for fan driven systems.

• Replacing Fans

Bigger Fans that rotate slower make less noise than smaller fans that have to rotate higher for the same cooling results. It is possible to replace several fans, mainly the CPU fan, GPU fan, Northbridge fan and case fans.

Make sure you do not go out and buy the first new fan that claims to be running silent. Visit websites like Silent Pc Review and read their articles and participate in the forums. They do recommend good components which should reduce the noise level a lot.

• Dampening

Use Dampening material to reduce the noise level. Standard sized kits exist for many computer cases but it is also possible to purchase mats that you have to cut by yourself to make them fit in your computer.

They normally consists of rubber, foam or similar noise dampening material and are glued to the inside of your case. Please note that this method could result in a temperature increase which would mean that you would have to add fans to reduce the temperature again.

Dampening can also be used to counter the high pitching vibrations of hard drives. Low Cost solutions reduce the vibrations by placing a dampening material between the hard drives and your computer case.

I’m still using the foam mats that shipped with my hard drives. I have placed them beneath my hard drives in the hard drive cages which reduced the vibration to a level where I’m not able to hear it anymore.

• Fan Controls

You could buy fan controls which make it possible to reduce the fan rotating speed. This could be worthwhile if you can’t control the fans with a software. I do control my CPU fan this way.

Conclusion:

It does not have to be expensive to reduce the noise level of your computer. Most users will be happy with the solutions that I have posted. Advanced users with enough money could take a look at advanced concepts such as passive cooling devices (they are fanless) or water cooling their complete system.

I would begin by evaluation the free methods and only use the low cost ones if the noise is still unbearable for you. Please let me know if you have further techniques to reduce the noise in your computer.

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