The power supply unit (PSU) is an internal hardware component which
supplies power to the components in the system.
Your system supports one of the following:
Two 1600 W, 1100 W, 750 W, or 495 W AC PSUs
Two 1100 W, 750 W Mixed Mode HVDC (for China only) PSUs
Two 750 W Mixed Mode AC, DC (DC for China only) PSUs
One 450 W cabled AC PSU
NOTE: For more information, see the Technical specifications section.
CAUTION: If two PSUs are installed, both the PSUs must have the same type of label. For example, Extended Power Performance (EPP) label. Mixing PSUs from previous generations of PowerEdge servers is not supported, even if the PSUs have the same power rating. Mixing PSUs result in mismatch condition or failure to turn the system on.
NOTE: When two identical PSUs are installed, power supply redundancy (1+1 – with redundancy or 2+0 – without redundancy) is configured in system BIOS. In redundant mode, power is supplied to the system equally from both PSUs when Hot Spare is disabled. When Hot Spare is enabled, one of the PSUs is put into the sleep mode when system utilization is low to maximize efficiency.
NOTE: If two PSUs are used, they must be of the same maximum output power.