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20-8 SPARC Enterprise M8000/M9000 Servers Service Manual • June 2010
■ M9000 (See FIGURE 20-7):
Perform the following operations from the rear of the unit:
a. Pull all mounted CMUs off the BP. (See Chapter 6)
b. Pull all mounted I/O units (IOUs) off the BP. (See Chapter 7)
Perform the following operations from the front of the unit (See
FIGURE 20-5):
a. Remove all mounted crossbar units (XBUs).
For a model with the expansion cabinet, remove all cables and cable support
brackets as well. Disconnect the cables completely from both cabinets. (See
Chapter 17)
b. Remove two clock control units (CLKUs).
For a model with the expansion cabinet, disconnect the cables as well.
Disconnect the cables completely from both cabinets. (See Chapter 11)
c. Remove two XSCF units.
For a model with the expansion cabinet, disconnect the cables as well.
Disconnect the cables completely from both cabinets. (See Chapter 17)
d. Loosen the four screws securing the XBU shelf. While grasping the handle,
remove the shelf from the cabinet.
e. Remove all mounted I/O units (IOUs) including filler panels. (See Chapter 7)
f. Loosen the four screws securing the IOU shelf. While grasping the handle,
pull the shelf out partially. Then, move your hands to the top frame of the
IOU shelf, and remove the shelf from the cabinet.