Lenovo System x3300 M4 Installation And Service Manual page 278

Removing the power paddle card
Use this information to remove the power paddle card.
To remove the power paddle card, 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 redundant power supply slightly out of the server to disconnect it from the power
paddle card.
Step 8. Disconnect all power cables from the connectors on the system board. Disengage the power
cables from any cable clips.
Step 9. If a RAID adapter battery is installed on the chassis, disconnect the power cable from the
ServeRAID adapter.
Step 10. Loosen the screws of the hot-swap power supply cage showed as step 1 in the following illustration.
Step 11. Remove the redundant power supply cage cover showed as step 2 in the following illustration.
Step 12. Remove the power paddle card out of the redundant power supply cage showed as step 3 in the
following illustration.
Attention: Make sure that the cage cover have been released from the tabs of the redundant
power supply cage showed as the zoom-in area in the illustration.
Step 13. If you are instructed to return the power paddle card, follow all of the packaging instructions, and
use any packaging materials for shipping that are supplied to you.
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System x3300 M4 Installation and Service Guide