Redundant Power Supply Upgrade Installation Guide
Redundant Power Supply Upgrade Installation Guide
Notes, Notices, and Cautions NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. ___________________ Information in this document is subject to change without notice. © 2005 Dell Inc. All rights reserved.
To upgrade your system from a single power supply, nonredundant configuration to a redundant configuration with two power supplies, you must first remove the nonredundant power supply and install a power distribution board (PDB) and two hot-plug power supplies. Removing the Nonredundant Power Supply CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system.
www.dell.com | support.dell.com Figure 1-1. Removing the Baffle/Back Fan Assembly back release tab securing tabs (2) baffle/back fan assembly front release tab chassis guide chassis guide 6 Disconnect all power cables from the SATA hard drives or SCSI backplane, diskette drive, optical drive, and any other installed drive. 7 Disconnect the power cables from system-board power connectors P1 and P2. 8 Open the power-cable retention clips and remove the power cables from the clips.
Figure 1-2.
www.dell.com | support.dell.com Installing the Power Distribution Board 1 Position the PDB so that the four slots on the underside of the PDB are aligned with the corresponding retention pins on the chassis, and the right edge of the PDB is aligned with with the two guides on the chassis. See Figure 1-3. Figure 1-3.
Figure 1-4. System Board Connections to the Power Distribution Board PDB P1 P2 5 Connect the power cables from the PDB to the SATA hard drives or SCSI backplane, diskette drive, optical drive, and any other installed drive. NOTICE: You must reinstall the baffle/back fan assembly to maintain proper airflow for system cooling. 6 Reinstall the baffle/back fan assembly. See Figure 1-1. a Reconnect the back fan cable to the system board connector.
www.dell.com | support.dell.com Installing the Redundant Power Supplies Figure 1-5. Installing a Redundant Power Supply power supply power supply handle spring tab 10 Slide the first power supply into the chassis. See Figure 1-5. 11 When the power supply is fully inserted, rotate the power supply handle inward to lock the power supply in place. See Figure 1-5. The power supply does not function until the handle is fully closed. 12 Repeat step 10 and step 11 to install the second power supply.
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