Lenovo System x3250 M5 Installation And Service Manual page 236

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 problem with
one of these parts, contact a service technician.
Read the safety information in "Safety" on page v and "Installation guidelines" on page 31.
To replace or install a hot-swap power supply, complete the following steps.
Step 1. Slide the hot-swap power supply into the bay until the release latch clicks into place.
Important: During normal operation, each power-supply bay must contain either a power supply
or power-supply filler panel for proper cooling.
Figure 149. Hot-swap power supply installation
Step 2. Connect one end of the power cord for the new power supply into the ac connector on the back
of the power supply; then, connect the other end of the power cord into a properly grounded
electrical outlet.
Step 3. If the server is turned off, turn on the server.
Step 4. Make sure that the ac power LED on the power supply is lit, indicating that the power supply is
operating correctly. If the server is turned on, make sure that the dc power LED on the power
supply is lit also.
Removing the PCI riser-card bracket from the PCI riser-card assembly
Use this information to remove the PCI riser-card bracket from the PCI riser-card assembly.
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.
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Lenovo System x3250 M5Installation and Service Guide