Lenovo ThinkServer RD450 Product Manual page 27

Power supplies available for the RD450 are highly efficient, with Energy Star / 80 Plus Platinum and
Titanium supplies. Several power supply options are available and they can be selected to match the
workload and configuration of the server for even greater efficiencies. All power supplies used in the
RD450 are common across the ThinkServer next-generation server portfolio, which simplifies management
across large installations. Power supplies are autosensing and feature a line-cord retention mechanism to
prevent unintended disconnects.
The available power supply options for RD450, including their operating characteristics, efficiency ratings,
and ordering information are listed in the following table
Table 29. Power supply options
Part Power
number rating
4X20G87845 450 W
4X20F28579 550 W
4X20F28575 750 W
4X20F28576 750 W
4X20F28577 1100 W
Use the ThinkServer Power Planner to estimate power usage for a specific configuration:
http://support.lenovo.com/us/en/downloads/ds101155
Configuration rules:
1 or 2 powers supplies are supported.
If two power supplies are installed, they must be identical
If two power supplies are installed, they form a redundant pair
Both active-active and active-passive forms of redundancy are supported and they are configurable
through IPMI (command-line interface)
Power supply options do not ship with a power cable. Country-specific and rack cables can be ordered if
needed, as listed in the following table.
Lenovo ThinkServer RD450 (E5-2600 v4)
80 PLUS Voltage
rating range
Platinum 100 - 240 AC
Platinum 100-240 AC
Platinum 100 - 240 AC
Titanium 200 - 240 AC
Platinum 100 - 240 AC
Efficiency at
rated load - 110V
20% 50% 100%
90% 92% 89%
90% 92% 89%
90% 92% 89%
No support
90 % 92 % 89 %
Efficiency at
rated load - 220V
20% 50% 100%
90% 94% 91%
89% 94% 91%
90% 94% 91%
94% 96% 91%
90 % 94 % 91 %
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