IBM 9080-M9S Manual page 598

e) Repeat steps "4.a" on page 591 through "4.d" on page 591 to remove the remaining processor
voltage regulator modules.
Figure 514. Removing processor voltage regulator modules
5. Remove the heat sinks and system processor modules one at a time.
(L007)
CAUTION: A hot surface nearby. (L007)
a) Loosen the heat sink actuation screw by turning the supplied hex key counterclockwise (A). Loosen
the screw until it moves freely. Refer to the following figure.
592 Power Systems: Removing and replacing parts in the 9080-M9S system