Dell Precision R5400 (Mid 2008) - Manual (Page 28)

Back to Contents Page
Power Distribution Unit
Dell Precision™ R5400 Service Manual
Removing the Power Distribution Unit
Replacing the Power Distribution Unit
Removing the Power Distribution Unit
1. Perform the steps in Before Working on Your Computer .
2. Disconnect the power cable connector labeled "P9" from the back of the optical drive.
3. Disconnect the hard-drive power cable(s) at the connector(s) labeled "P8" (upper hard drive) and "P7" (lower hard drive, if installed).
CAUTION: Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer.
Before working inside the computer, read the safety information that shipped with the computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTICE: Pull on the connector and not on the power cable to disconnect the connector from the back of the optical drive.
NOTE: Do not disconnect the power cables directly from the back of the hard drives, as it is not necessary for removal of the power distribution
unit.
1 power-cable connector P1 2 cable-routing clip (power cable
P1)
3 power-cable connector P2 4 cable-routing portal (power
cables P1, P2, and P3)
5 power distribution unit 6 power-cable connector P3
7 cable-routing portal (power
cables P4, P5, and P6) 8 hard-drive (lower) power cable
connector (P7)
9 hard-drive (upper) power cable 10 optical-drive power cable