Important If you install two processors onto the system board, the processors must be the same speeds, revision, core voltage, and bus speed.

9 Install the new processor into the CPU socket, then press the processor locking lever down until it lays flat against the CPU socket.

10 Place the heat sink over the processor, lining up the four captive screws with the four posts surrounding the processor.

Caution The heat sink has Thermal Interface Material (TIM) located on the bottom of it. Use caution when you unpack the heat sink so you do not damage the TIM.

11 Loosely screw in the captive screws on the corners of the heat sink, gently tightening diagonal screws (screw in one screw, then the screw located diagonally to the first screw). Do not fully tighten one screw before tightening another.

12 Gradually and equally tighten each captive screw until each is firmly tightened. Do not over-tighten the screws.

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