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Pure Silence |
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| Cooling Silent PC |
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1. An important component of superior cooling of the silent PC is the use of high quality thermal compound when attaching heatsinks. For the best CPU cooling and performance, we recommend Arctic Silver 5, which alone can drop your CPU temperature from 3-10 degrees Celsius when switching from standard thermal compound. Since creating a silent PC involves using large, efficient heatsinks and slow moving fans as your only source of cooling, proper installation of your CPU cooler and high-quality thermal compound is imperative. Arctic Silver has excellent thermal compound instructions. Your silent CPU cooler manufacturer is usually a good resource of CPU cooler installation instructions. Artic Silver is 90% silver by weight.
2. Core-Voltage-Control The correct core voltage settings (supply voltage of the Processor) are extremely important. Despite automatic detection the settings are wrong on many boards. A too high voltage causes a clearly higher temperature development. This can be the reason why heatsinks released for the specific processor type by the manufacturer are not sufficient enough. Furthermore the additional heat has to be removed from the case which causes more noise because of higher revs of the fans.
If you stick to these definitions a system equipped with quiet component will be stable, reliable and will run within the temperature tolerances set by the manufactures. If you are familiar with your PCs Bios we recommend underclocking your PC to reduce the heat output.
3. If your silent PC is pushing the heat threshold, use a quiet rear exhaust case fan rather than an intake fan. We recommend an exhaust fan because airflow from an exhaust fan is much greater than that which is produced from an intake fan. Also due to the location of the fan, an exhaust fan can also be noticeably quieter. Because heat rises and because the power supply, CPU, and Northbridge chipset produce so much heat (all centrally located by the rear exhaust fan), it is recommended that the exhaust fan be placed in the rear, just below the power supply. This improves computer airflow around these essential components (PSU, CPU, and Northbridge chipset).
As you can see from the silent PC cooling diagram left, the idea behind a rear exhaust case fan is the creation of a "wind tunnel" in your computer just over the CPU and Northbridge chipset
Our power supplies should not need a case fan at all. This is because they include a 120-mm silent power supply fan located on the bottom of the power supply, pulling air out of your case up through the power supply and out the back. The NX-3500 also provides plenty of power, stays cool, and is truly silent. Power supplies with 120mm fans are advisable since whilst being quieter than 80mm fans for the same cfm they will keep the cpu far cooler. Whilst dual 80mm power supplies with no underside fan can be very quiet they will increase the system temperature by 5-10 degrees Celsius.
4. Making sure all wires and cables are routed and bunched out of the way so as to not block airflow, is another very important key to proper computer cooling in the silent PC. Using cable ties to bunch cables out of the path of the airflow "wind tunnel". For IDE and Floppy Cables, we recommend Rounded Cables since they not only look cool, but are easier to move and bunch out of the way of your cases airflow. Especially the intake fans and around the PCI slots.
5. Try and leave slots near intense heat producing cards (for instance video cards) open for better airflow around the card, and therefore improved cooling of that computer component. A Zalman heatpipe is an excellent silent alternative to cooling your high-end video card.
6. Try and leave a bay next to your 7,200 rpm silent hard drive open to allow for better airflow and better cooling around these heat producing components. You may want to purchase a 5 1/4" to 3 1/2" drive bay converter so that one hard drive or peripheral can be separated into one of your large drive bays in order to stay cooler.
7. Front case fans not only add to your computers noise level, but are generally not necessary since they do not significantly improve computer cooling.
8. Keeping your silent PC free of dust helps ensure proper PC cooling. Dust causes computer components to hold in their heat, thereby contributing to their wear and even causing them to overheat (and therefore die). You can start by keeping your computer in as clean an area as possible. If your computer has dust in it, use a can of compressed air to clean out all fans and the inside of your computer. Make sure not to tip the can of compressed air upside down, as this will cause the can to spray out a frozen liquid that can damage your computer. Keep in mind that canned air is all that should be used to rid your computer of the unsightly dust which is heating up your computer. Water and solvents can damage components, and a vacuum should NEVER be used on your computer unless it is a specialized computer vacuum. Normal vacuums have huge static electricity build-ups and can instantly kill various computer parts.
9. Air filters over the case front/rear airflow vents can slow down airflow into and out of your case, thus reducing computer cooling. On the other hand, the use of dust filters will help you keep your computer clean and therefore reduce overheating, especially in a dusty environment. If you use air filters in your silent pc, make sure to clean them on a regular basis.
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