Lenovo 3823, 3821, 3822, 3719 manual Installing a hot-swap power supply, Statement

To remove a hot-swap power supply, do the following:

1.Read the safety information Chapter 2, “Safety information,” on page 5.

Attention: Static electricity that is released to internal server components when the server is powered on might cause the server to halt, which might result in the loss of data. To avoid this potential problem, always use an electrostatic-discharge wrist strap or other grounding system when you work inside the server with the power on.

2.Disconnect the power cord from the connector on the back of the power supply that you are removing.

3. Press the release latch on the power supply	and pull the power supply
out of the power-supply cage.

4.If you are instructed to return the hot-swap power supply, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

Installing a hot-swap power supply

If you install or remove a hot-swap power supply, observe the following precautions.

Statement 8:

Chapter 7. Installing optional devices and replacing customer replaceable units 175