Lenovo System x3650 M4 HD, Инструкция по установке и обслуживанию

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Step 13. (Trained technician only) Remove all heat sinks and microprocessors, and set them aside on
a static-protective surface for reinstallation (see “Removing a microprocessor and heat sink” on
page 282).
Attention:
1. Remove the socket covers from the microprocessor sockets on the new system board and
place them on the microprocessor sockets of the system board you are removing.
2. Do not allow the thermal grease to come in contact with anything, and keep each heat sink
paired with its microprocessor for reinstallation. Contact with any surface can compromise the
thermal grease and the microprocessor socket. A mismatch between the microprocessor and
its original heat sink can require the installation of a new heat sink.
Step 14. Remove the system battery (see “Removing the system battery” on page 266).
Step 15. Remove the hot-swap fans (see “Removing a hot-swap fan” on page 241).
Step 16. Remove the fan bracket (see “Removing the fan bracket” on page 243).
Step 17. Disconnect all cables from the system board. Make a list of each cable as you disconnect it; you
can then use this as a checklist when you install the new system board (see “Internal cable routing
and connectors” on page 179 for more information).
Attention: Disengage all latches, release tabs or locks on cable connectors when you disconnect
all cables from the system board. Failing to release them before removing the cables will damage
the cable sockets on the system board. The cable sockets on the system board are fragile. Any
damage to the cable sockets may require replacing the system board.
Step 18. Pull out and lift up the pin and the thumbscrews on each side of the system board.
Chapter 6
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Removing and replacing components
297