Dell Poweredge R440 Parts Replacement Guide
Replacing Cabled Power Supply in Poweredge R440
Before beginning, be sure to review the safety instructions. After unpacking the new power supply unit (PSU), carefully slide the PSU into the PSU cage until it is fully seated. Use a Phillips #2 screwdriver to securely fasten the PSU to the system. Next, connect the PSU cables to the connectors on the system board. If necessary, install the expansion card riser, followed by the air shroud.
Replacing Cooling Fan in Poweredge R440