IBM System x3950, Problem Determination And Service Manual

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Scalability cartridge assembly
To remove the scalability cartridge assembly, complete the following steps:
Retention latch
Scalability cartridge assembly
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 117.
2. Turn off the server and peripheral devices, and disconnect the power cords
and all external cables necessary to replace the device.
3. Remove the top cover and bezel (see “Top cover and bezel” on page 131).
4. Remove all fans (see “Hot-swap fan” on page 123).
5. Remove the memory cards (see “Removing and replacing a memory card” on
page 126).
6. Lift the microprocessor-tray release latch, open the microprocessor-tray levers,
and pull the microprocessor tray out of the server slightly (see “Removing and
installing a microprocessor” on page 141).
7. Remove the power supplies and the power-supply structure (see
“Power-supply structure” on page 137).
8. Move the retention latch away from the scalability cartridge assembly, grasp
the blue handle, and lift the assembly out of the server, allowing the structure
to pivot at the chassis rear.
9. Move the assembly away from the chassis rear as you lift the assembly from
the server.
10. If you are instructed to return the scalability cartridge assembly, follow all
packaging instructions, and use any packaging materials for shipping that are
supplied to you.
To install the replacement scalability cartridge assembly, complete the following
steps:
1. Insert the scalability cartridge assembly into the chassis rear and pivot the
assembly into place. Make sure the retention latch securely holds the assembly
in place.
2. Install the power-supply structure and the power supplies.
Chapter 4. Removing and replacing server components
149