IBM 9080-M9S Manual page 668

Figure 582. Installing the heat sink on the TIM
8. Secure the TIM and heat sink to the socket of the system processor module.
a) Ensure that the heat sink load arms are engaged as shown by (A) in Figure 583 on page 663.
b) Tighten the center load screw clockwise by using the supplied 4MM T-handle Allen wrench as
shown by (B) in Figure 583 on page 663 until a firm stop is reached. If the heat sink moves
noticeably, the load arms are not engaged. Unscrew the center load screw and repeat this step
again.
662 Power Systems: Removing and replacing parts in the 9080-M9S system