Intel SR1670HV Service Guide - Page 28

Hardware Setup Figure 17. Closing the Load Plate 2.2.2 Installing the Processor Heatsink You must install the processor before installing the heatsink. Improper installation can damage the heatsink. Pay close attention to the steps and perform each step exactly as indicated to avoid damage. The heatsink has Thermal Interface Material (TIM) located on the bottom of it. Use caution when you unpack the heatsink so you do not damage the TIM. New unused heatsinks have adequate TIM on the bottom. If you are reusing a heatsink, make sure there is adequate TIM present on the heatsink to support processor cooling. To install the heatsink, follows these steps: 1. Remove the protective film on the TIM if present. 2. Orient the heatsink over the processor as shown. You must position the heatsink fins as shown (Figure 18) to provide correct airflow through the system. 3. Set the heatsink over the processor, lining up the four captive screws with the four posts surrounding the processor. 4. Loosely screw in the captive screws on the heatsink corners in a diagonal manner according to the numbers shown (Figure 18) as follows: a. Starting with the screw at location 1, engage the screw threads by giving it two rotations in the clockwise direction and stop. (IMPORTANT: Do not fully tighten.) b. Proceed to the screw at location 2 and engage the screw threads by giving it two rotations and stop. c. Engage screws at locations 3 and 4 by giving each screw two rotations and then stop. 5. Repeat steps 4a through 4c by giving each screw two rotations each time until all screws are lightly tightened up to a maximum of 8 inch-pounds torque. Intel® Server System SR1670HV Service Guide 13