Power Supply Units - Dell W4X15 Owner's Manual

Figure 69. Installing the heat sink
1. retention screw (4)
3. processor socket
Next steps
1. Follow the procedure listed in the After working inside your system section.
2. While booting, press F2 to enter System Setup and verify that the processor information matches the
new system configuration.
3. Run the system diagnostics to verify that the new processor operates correctly.
Related Links
Safety instructions
Before working inside your system
Removing the cooling shroud
Removing an expansion card
Installing the cooling shroud
After working inside your system

Power supply units

Your system supports the following power supply units (PSUs):
• 450 W AC (non-redundant)
• 550 W AC (redundant)
When two identical PSUs are installed, the power supply configuration is redundant (1 + 1). In redundant
mode, power is supplied to the system equally from both PSUs to maximize efficiency.
When only one PSU is installed, the power supply configuration is non-redundant (1 + 0). Power is
supplied to the system only by the single PSU.
2. heat sink
4. retention screw slot (4)
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