Removing The Fixed Power Supply - Lenovo System x3250 M5 Installation And Service Manual

Removing the fixed power supply

Use this information to remove the fixed power supply.
When you remove or install the fixed power supply, observe the following precautions.
Statement 8
CAUTION:
Never remove the cover on a power supply or any part that has the following label attached.
Hazardous voltage, current, and energy levels are present inside any component that has this label
attached. There are no serviceable parts inside these components. If you suspect a with one of these
parts, contact a service technician.
Read the safety information in "Safety" on page v and "Installation guidelines" on page 31.
If you are replacing a server component in the server, you need to slide the server out from the rack
enclosure, turn off the server and peripheral devices, and disconnect the power cords and all external cables.
To remove the fixed power supply, complete the following steps.
Step 1. Remove the cover (see "Removing the cover" on page 157).
Attention: To ensure proper cooling and airflow, do not operate the server for more than 30
minutes with the cover removed.
Step 2. Disconnect the power-supply cables from the connectors on the system board and internal
devices; then, disengage the cables from any retention-clips.
Note: Note the routing of all power-supply cables; you will route the power-supply cables the
same way when you install the power supply.
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Lenovo System x3250 M5Installation and Service Guide