IBM System x3950 E Installation Manual page 28

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IBM System x3950 Type 8878 and System x3950 E Type 8879: Installation Guide
3. Remove all fans from the server.
4. Remove all memory cards from the server.
5. Remove the microprocessor tray:
a. Open the microprocessor-tray release latch.
Air baffle
Microprocessor-tray
lever
b. Open the microprocessor-tray levers.
Microprocessor-tray
release latch
Microprocessor-tray
retention latch
(both sides of tray)
Microprocessor-tray
lever