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7. Take note of the location of the DIMMs and remove them from the failing
system board and install them on the new system board in the same location
as they were on the failing system board. See “Removing and replacing
memory” on page 125.
8. Remove the heat sink and microprocessor from the failing system board and
install them on the new system board. See “Removing and replacing the
microprocessor.” Continue at the next step after installing the heat sink and
microprocessor on the new system board.
9. Install the new system board and insert the screws.
10. Reconnect all cables to the system board.
11. Replace any air baffles or ducts.
12. Go to “Closing the cover and connecting cables” on page 133.
Removing and replacing the microprocessor
1. Remove the cover. See “Removing the cover” on page 121.
2. Remove any air baffles or ducts that cover the microprocessor.
3. Disconnect the heat sink fan cable from the system board. Refer to
“Identifying parts on the system board” on page 124.
Chapter 10. Replacing FRUs (Types 8084, 8085, 8147, 8148, and 8179 129