Power Supply Units - Dell EMC PowerEdge R740 Installation And Service Manual

Steps
1 Align the optical drive with the optical drive slot on the front of the system.
2 Slide in the optical drive until the release tab snaps into place.
Figure 98. Installing the optional optical drive
Next steps
1 Connect the power and data cables to the optical drive and system board.
NOTE: Route the cable properly on the side of the system to prevent it from being pinched or crimped.
2 Install the air shroud.
3 Install the backplane cover.
4 Follow the procedure listed in
Related links
Installing the air shroud
Installing the backplane cover

Power supply units

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 2000 W, 1600 W, 1100 W, 750 W, or 495 W AC PSUs
• Two 1100 W DC PSUs
• Two 1100 W or 750 W Mixed Mode HVDC PSUs
NOTE: For more information, see the Technical specifications
section.
148 Dell EMC PowerEdge R740 Installation and Service Manual
Installing and removing system components
After working inside your system.