IBM 7378, Problem Determination And Service Manual

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7. If you are installing microprocessor 2, install a VRM in the connector next to
microprocessor socket 2 (see “System board internal connectors” on page 15
for the VRM connector location).
Note: A VRM must be installed for microprocessor 2. The server will not start
if microprocessor 2 is installed without a VRM.
a. Open the retaining clips on each end of the VRM connector.
b. Turn the VRM so that the keys align with the connector.
c. Insert the VRM into the connector by aligning the edges of the VRM with
the slots at the end of the VRM connector. Firmly press the VRM straight
down into the connector by applying pressure on both ends of the VRM
simultaneously. The retaining clips snap into the locked position when the
VRM is seated in the connector.
8. Install the air baffle (see “Installing the air baffle” on page 213).
9. Return the power-supply cage to its closed position (see “Closing the
power-supply cage” on page 156).
10. Install the power supplies (see “Installing a hot-swap power supply” on page
274).
11. Install and lock the left-side cover (see “Installing the left-side cover” on page
181).
12. Reconnect the external cables and power cords; then, turn on the attached
devices and turn on the server.
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IBM System x3400 M3 Types 7378 and 7379: Problem Determination and Service Guide