Installing The Power Interposer For Redundant Power Supply Card Assembly - Lenovo System x3750 M4 Installation And Service Manual

Step 11. Route the power cable through the cable hook-and-loop on the rear of the server so that it does
not accidentally become unplugged.
Step 12. Reconnect all of the cables to the peripheral devices.
Step 13. Restart the server. Make sure that it starts correctly and recognizes the newly installed device, and
make sure that no error LEDs are lit.
Installing the power interposer for redundant power supply card
assembly
Use this information to install the power interposer.
Power
header
connectors
The Power Interposer for Redundant Power Supply option enables redundant power support when no
microprocessor and memory expansion tray is installed. To install the optional power interposer card
assembly, complete the following steps:
Step 1. Read the safety information and installation guidelines, see "Safety" on page v and "Installation
guidelines" on page 38.
Step 2. Turn off the server (see "Turning off the server" on page 23) and all attached peripheral devices.
Disconnect all power cords; then, disconnect all external cables from the server.
Step 3. Remove the top cover (see "Removing the server top cover" on page 40).
Step 4. Align the power connectors on the power interposer card so that they are aligned with the power
interposer card connectors on the system board; then, press down on the power interposer card
until it is firmly seated in the connectors on the system board.
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Lenovo System x3750 M4 Installation and Service Guide
Power
supply
connector 2
Power
interposer
card