Intel QX9770 Design Guidelines - Page 54
Reference Attach Mechanism, Structure to Motherboard Interface
UPC - 735858197564
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LGA775 Socket Heatsink Loading 5.6 Reference Attach Mechanism The ALCT pump is attached to the motherboard through the use of a backside stiffener plate. Prior to motherboard installation in the chassis the backside stiffener plate is attached with two screws. Once installed these screws remain installed unless the stiffener plate requires removal. After installation of the board into the chassis the pump and upper structure are secured to the motherboard and backside stiffener with two additional screws (Figure 18). The heat exchanger is positioned on the back panel and is secured in place using four screws provided in the accessory kit. The heat exchanger can be mounted on most back panels that will accept 120 mm fans. The range of recommended positions of the heat exchanger relative to the pump is defined in Figure 74. Figure 18. Structure to Motherboard Interface 54 Thermal and Mechanical Design Guidelines