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102 Chapter4
Field Replaceable Units
FRU Removal and Replacement
System Power Supply
This section will prove important to you as you begin to service the system. For example,
you may need to install memory in the system unit. To do this, you need to position the
power supply so you can access the memory slots. To remove the system board, you will
need to remove the power supply. If the power supply fails, you will need to replace it with
a new one. This section will help you accomplish these tasks.
WARNING
To prevent injury, unplug the workstation power cord from the
electrical outlet before servicing any internal components.
The topics covered in this section are:
• Propping up the Power Supply
• Removing the Power Supply
Propping Up the Power Supply
To prop the power supply up, follow these steps:
1. Lay the system on its side on a cushioned surface to protect against damage to the
exterior workstation surfaces as shown in Figure 4-8.
2. Open the left side panel of the system unit by following the procedure in the section
“Opening the Left Side Panel of the System Unit” in this chapter.
3. Unscrew the two screws on the power supply chassis as shown in Figure 4-7.
Figure 4-7. Unscrewing the Power Supply Captive Screws
4. Lift up on the power supply handle. The power supply bail automatically engages once
Power Supply
Power Supply
Handle
Captive Screws