Lenovo System x3500 M4 Installation And Service Manual page 268

Step 9. Install the 3.5-inch simple-swap hard disk drives that were removed from the hard disk drive cage
(see "Installing a 3.5-inch simple-swap hard disk drive" on page 204).
Step 10. Install the fan cage assembly (see "Installing the fan cage assembly" on page 274).
Step 11. Install the air baffle (see "Installing the air baffle" on page 190).
Step 12. Close the bezel.
Step 13. Install and lock the left-side cover (see "Installing the left-side cover" on page 185).
If you have replaced a server component or installed an optional device in the server, you need to reconnect
the power cords and all external cables, and turn on the server and peripheral devices.
Removing a hot-swap power supply
Use this information to remove a hot-swap power supply.
When you remove or install a hot-swap power supply, observe the following precautions.
Statement 5
CAUTION:
The power control button on the device and the power switch on the power supply do not turn off
the electrical current supplied to the device. The device also might have more than one power
cord. To remove all electrical current from the device, ensure that all power cords are disconnected
from the power source.
Statement 8
CAUTION:
Never remove the cover on a power supply or any part that has the following label attached.
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System x3500 M4 Installation and Service Guide