Lenovo System x3300 M4 Installation And Service Manual page 279

Replacing the power paddle card
Use this information to replace the power paddle card.
The power paddle card enables the redundancy power support. To replace the power paddle card assembly,
complete the following steps:
Step 1. Read the safety information that begins in "Safety" on page v and "Installation guidelines" on
page 163.
Step 2. Turn off the server (see "Turning off the server" on page 24) and all attached peripheral devices.
Disconnect all power cords; then, disconnect all external cables from the server.
Step 3. Carefully turn the server on its side so that it is lying flat, with the cover facing up.
Attention: Do not allow the server to fall over.
Step 4. Unlock and remove the left-side cover (see "Removing the left-side cover" on page 187).
Step 5. Remove the air baffle (see "Removing the air baffle" on page 189).
Step 6. Remove the fan assembly (see "Removing the fan assembly" on page 261).
Step 7. Remove the existing power paddle card if there is one installed. (See "Removing the power paddle
card" on page 264)
Step 8. Align the power paddle card to the guide pins of the redundant power supply cage, then, slightly
install the power paddle card to the redundant power supply cage showed as step 1 in the
following illustration.
Step 9. Replace the redundant power supply cage cover showed as step 2 in the following illustration.
Attention: Make sure that the cage cover have been clicked into the tabs of the redundant power
supply cage showed as the zoom-in area in the illustration.
Step 10. Tighten two screws showed as step 3 in the following illustration.
Step 11. Install the hot-swap power supply that came with the power paddle card. (see "Installing a
hot-swap power supply" on page 78).
Step 12. Reconnect the power cables to the connectors on the system board and secure the power cables
with any cable clips on the chassis.
.
Chapter 6 Removing and replacing components
265