Cisco UCS Cisco UCS C220 M3 High-Density Rack Server (Large Form Factor Hard Disk Drive Model)
CONFIGURING the SERVER
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STEP 8 ORDER POWER SUPPLY
The C220 M3 LFF server accommodates two power supplies. A lightly loaded server can operate 
from one 650 W power supply. A fully loaded server might need to be powered with two 450 W or 
two 650 W power supplies (see 
Ta b l e  15). 
Use the power calculator at the following link to determine the needed power based on the 
options chosen (CPUs, drives, memory, and so on):
https://express.salire.com/Go/Cisco/Cisco-UCS-Power-Calculator.aspx
NOTE:  For configurations that use 130 W or 135 W CPUs, the minimum power supply 
required is 650 W (UCSC-PSU-650W). See 
STEP 2 SELECT CPU(s), page 13.
Table 15   Power Supply PIDs
Product ID (PID) PID Description
UCSC-PSU-450W 450 W power supply
UCSC-PSU-650W 650 W power supply
UCSC-PSU-930WDC 930 W -48V DC power supply 
NOTE:  In a two power supply server, both power supplies must be identical.