Lenovo ThinkSystem SD550 V3 User Manual page 79

Figure 26. Removal of the PSU cage
Step 3. Carefully lay the PSU cage on a flat, static-protective surface.
After this task is completed
1. Install a replacement unit (see
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Remove the chassis midplane
Follow instructions in this section to remove the chassis midplane.
About this task
To avoid potential danger, make sure to read and follow the safety information.
S002
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
"Install a PSU cage" on page 73).
.
Chapter 5 Hardware replacement procedures
69