Dell Precision T3400 User's Guide - Page 210
Installing an Additional Fan
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Installing an Additional Fan CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. CAUTION: For configurations with three SAS hard drives, you must install an additional fan. NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it. 1 Follow the procedures in "Before You Begin" on page 143. 2 Remove the computer cover (see "Removing the Computer Cover" on page 145). NOTICE: When placing the fan in the computer, ensure that the cables of other components, such as the power supply, remain in their proper position. 3 Place the fan flush with the side of the power supply and engage the fan hooks in the three fan slots in the side of the power supply. 4 Slide the fan down until it clicks into place. 5 Connect the fan cable to the fan connector on the system board. 210 Adding and Replacing Parts