Following are the types of power supply units compatible to this server and notices to take during 
installation. The server supports a maximum of four power supply units.
•  750-watt Platinum, input power 115 Vac / 230 Vac / 240 VDC
•  750-watt Titanium, input power 230 Vac / 240 VDC 
Note: When only two units of 750-watt Titanium power supply are installed, 240 VDC is not supported.
•  1100-watt Platinum, input power 115 Vac / 230 Vac / 240 VDC
•  1100-watt Titanium, input power 230 Vac / 240 VDC
•  1800-watt Platinum, input power 230 Vac / 240 VDC
•  1800-watt Titanium, input power 230 Vac / 240 VDC
•  2600-watt Titanium, input power 230 Vac / 240 VDC
CAUTION: 
•  240 V dc input (input range: 180-300 V dc) is supported in Chinese Mainland ONLY. 
•  Power supply with 240 V dc input cannot support hot-plugging power cord function. Before 
removing the power supply with dc input, please turn off server or disconnect dc power sources at 
the breaker panel or by turning off the power source. Then, remove the power cord.
Procedure
Step 1.  Make preparations for this task. 
a.  Make sure the power supply unit to be installed is of the same wattage as the installed ones. 
Otherwise, complete the following steps: 
1.  Turn off the server and peripheral devices.
2.  Disconnect the power cords and all external cables.
3.  Remove all the installed power supply units.
4.  Make sure all the power supply units to be installed are of the same wattage. Do not mix 
power supply units of different wattages in the same unit of server.
b.  If CMA has been installed, do the following: 
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ThinkSystem SR860 V2 Maintenance Manual