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Case Fan, 8x8cmAn insurance for your system. Power supply fan sucks air in. Cooling fan blows air out. Recommended for all systems. Mounted in the front or back of the case. Maximum reliability and long life-time. OEM bulk-pack. Various brands used interchangeably for this item. Suggested retail price: $10+tax.Specs: Standard 8 X 8cm edge-to-edge dimensions. Actual shortest distance between mounting holes: 7.3cm or 2 13/16". Measure the distance on your case before purchasing. Standard thickness: 1 inch. Power plugs included. You can choose either 3-pin or 4-pin power connection. Choose power connection either to the power supply (P/S) or motherboard. The power supply connector has four pins (two pins active) as shown in the above picture while the motherboard connector has three pins. The power supply connector is larger and white. The motherboard connection has the advantage of better power management when the system is in sleep mode. In other words, the case fan could slow down or stop turning when the system is not active to save energy and reduce noise. However, not all motherboards have an extra 3-pin power connector. Check your motherboard before purchasing. Mounting Instructions: To mount in the front of the case: Have the manufacturer logo on the case fan facing inside of the case to blow cold air from outside into the case. This direction helps completing the air flow cycle since the rear fan inside the power supply sucks hot air out of the case. No screws are needed to mount the fan in the front of most cases where there are typically a built-in fan bracket (holder). To mount in the back of the case: Have the logo facing outside of the case to suck hot air out of the case, which is the same direction as the fan in the ATX power supply. Metal, flat-wash screws are normally used to mount the case fan at the back of the case. Other locations: You may use super glue or other adhesives to attach the case fan to the base or side/top cover of your computer. Position it close to your processor or hard drives to blow air onto these "heat-generating" components. Limited Warranty: One year from invoice date with Directron.com. 30-Day money back from receiving date with 15% restocking fee for non-defective returns. No credit or refund after 30 days. Customer is responsible for returning manufacturer defective products including DOA unless testing is paid before shipping. Notes: (1) We use ball-bearing case fans for this item most of the time (whenever we can). In a clean environment, a ballbearing fan would last longer than a sleeve-bearing (brushless) fan. However, in a relatively dirty environment, the life-time is about the same. In our experience, we have almost never seen a system outlasting a case fan under an average working condition. (2) Directron.com has a $10 minimum-order requirement. You may add other <$10 items to meet the requirement. (3) About the noise level from a PC. There are three moving parts in a computer: the CPU fan, the case fan, and the fan inside the power supply. These are the main contributors to the noise level. Choosing reliable and quiet fans are important for noise considerations. The other factors that affect the noise levels include: the size of the motherboard, the mounting mechanism for the CPU fan, and the way the motherboard is mounted onto a case. These factors contribute to the noise level because the CPU fan could cause the motherboard to resonate against the case, generating more noise. The larger the motherboard size, the lower the noise level. The stronger mounting for the CPU fan and motherboard, the lower the noise. Therefore mounting the motherboard with solid screws instead of plastic spacers is recommended. (4) To reduce the noise level from this fan, please add a 12-to-7 volt adapter for only $3.99 (for 4-pin connectors) and for $5.99 (for 3-pin connectors). Please make the connector choice according to your choice for the power connector for your case fan. Warning: This fan may include a power extender plug. Check the polarity of the plug before using it! The 4-pin male plug with female shroud for this product should be connected to a connector from a power supply only in one way. Reversing it may result in reversed voltages (12V to 5V and 5V to 12V) provided to the extender plug, which may damage devices that use 5V such as hard drives, CD-ROM, DVD, and CDRW drives. References: | Noise Comparison of 8cm Fans | Related Items: Rare sized case fans: 4cm, 6cm, 9cm, and 12cm | Fan Grills | Fan Accessories | Gallery | | ||||||
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