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6-18 SPARC Enterprise M8000/M9000 Servers Service Manual • October 2012
10. Remove the cover of the CMU.
a. Pull the two latches on the connector side of the CMU to unlock the latches.
b. Slide the cover of the CMU toward the connector side to release it from the guide
pins (two pins on each side).
c. Raise the cover of the CMU to remove it.
11. Remove the DIMM duct cover.
12. Replace parts.
In CMU replacement:
Remove all the CPU modules and DIMMs mounted in the removed CMU, and remount
them in the replacement CMU.
Note – Be sure to remount the CPU modules and DIMMs in the same locations in the
replacement CMU as their mounting locations in the swap target CMU.
For CPU module replacement:
Replace the target CPU module mounted in the removed CMU with the replacement CPU
module. For the replacement procedure, see Section 6.4, “CPU Module and DIMM
Replacement” on page 6-22.
For DIMM replacement:
Replace each swap target DIMM mounted in the removed CMU with a replacement
DIMM. For the replacement procedure, see Section 6.4, “CPU Module and DIMM
Replacement” on page 6-22.
13. Place the DIMM duct cover back at its original location. Insert the L-shaped
projections on the CMU frame into the two positioning slits of the DIMM duct cover.
14. Follow the removal instructions in Step 10 in reverse order to attach the cover of the
CMU, and press the latch pins to lock the latches.