Power supply options Depending on the installed options and the regional location where the server was purchased, the server can be configured with one of the following power supplies: ATX 290W Platinum Non-hot-plug Power Supply (94% efficiency) ATX 290W Non-hot-plug Power Supply (92% efficiency) HPE 500W Flex Slot Platinum Hot-plug Low Halogen Power Supply HPE 800W Flex Slot -48VDC Hot plug Low Halogen Power Supply Hot-plug power supply calculations Power supply warnings and cautions Installing a redundant AC power supply Installing a hot-plug DC power supply