Lenovo ThinkSystem ST250 V2 Maintenance Manual page 187

Figure 102. Hot-swap power supply label
NEVER CONNECT AND DISCONNECT THE POWER SUPPLY CABLE AND EQUIPMENT WHILE YOUR
EQUIPMENT IS POWERED ON WITH DC SUPPLY (hot-plugging). Otherwise you may damage the
equipment and result in data loss, the damages and losses result from incorrect operation of the
equipment will not be covered by the manufacturers' warranty.
Attention: This type of power supply is hot-swap only when two power supplies are installed for
redundancy. If only one power supply is installed, you must power off the server first before removing the
power supply.
The following tips describe the information that you must consider when you remove a power supply with
dc input.
NEVER CONNECT AND DISCONNECT THE POWER SUPPLY CABLE AND EQUIPMENT WHILE YOUR
EQUIPMENT IS POWERED ON WITH DC SUPPLY (hot-plugging). Otherwise you may damage the
equipment and result in data loss, the damages and losses result from incorrect operation of the
equipment will not be covered by the manufacturers' warranty.
• S002
CAUTION:
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Chapter 4 Hardware replacement procedures
177