Power supplies
The server supports up to two power supplies for redundancy.
- When only 1 power supply unit is installed, the power policy is set to - Non-redundant mode .
- When 2 power supply units are installed, the redundancy mode is set to - Redundant N+N . If one of the power supply units fails or has been removed, the BMC will report an event and set the redundancy mode to- Non-redundant mode automatically.
| Power supply | 100–127 V ac | 200–240 V ac | 240 V dc (Chinese Mainland only) | -48 V dc | 
| 500-watt 80 PLUS Platinum | √ | √ | √ | |
| 750-watt 80 PLUS Platinum | √ | √ | √ | |
| 750-watt 80 PLUS Titanium | √ | √ | ||
| 1100-watt 80 PLUS Platinum | √ | √ | √ | |
| 1100-watt 80 PLUS Platinum | √ | |||
| 1100-watt 80 PLUS Titanium | √ | √ | ||
| 1800-watt 80 PLUS Platinum | √ | √ | 
- Use Lenovo Capacity Planner to calculate the required power capacity for what is configured for your server. More information about Lenovo Capacity Planner is available at: Lenovo Capacity Planner website 
- Ensure that the power supply units that you are installing are supported. For a list of supported power supply units for the server, go to: Lenovo ServerProven website 
- 240 V dc input (input range: 180-300 V dc) is supported in Chinese Mainland ONLY.