Power Supplies; Hot Spare Feature - Dell PowerEdge R430 Owner's Manual

3. thermal-grease syringe
NOTE: The thermal-grease is intended for one-time use only. Dispose of the syringe after
you use it.
c. Place the heat sink onto the processor.
d. Tighten the four screws to secure the heat sink to the system board.
NOTE: Tighten the screws diagonally opposite to each other. Do not over-tighten the heat
sink retention screws when installing the heat sink. To prevent over-tightening, tighten the
retention screw until resistance is felt, and stop once the screw is seated. The screw tension
should be no more than 6 in-lb (6.9 kg-cm).
Next steps
1. Install the cooling shroud.
2. Follow the procedure listed in
3. While booting, press <F2> to enter the System Setup and check that the processor information
matches the new system configuration.
4. Run the system diagnostics to verify that the new processor operates correctly.
Related Links
Removing the cooling shroud
Installing the cooling shroud

Power supplies

Your system supports the following power supplies:
• 450 W AC (non-redundant)
• 550 W AC (redundant)
When two identical power supplies are installed, the power supply configuration is redundant (1 + 1). In
redundant mode, power is supplied to the system equally from both power supplies to maximize
efficiency.
When only one power supply is installed, the power supply configuration is non-redundant (1 + 0). Power
is supplied to the system only by the single power supply.
NOTE: If two power supplies are used, they must be of the same type and have the same maximum
output power.
NOTE: For AC power supplies, use only PSUs with the Extended Power Performance (EPP) label on
the back. Mixing PSUs from previous generations of Dell PowerEdge servers can result in a PSU
mismatch condition or failure to power on.

Hot Spare feature

Your system supports the Hot Spare feature that significantly reduces the power overhead associated
with power supply redundancy.
When the Hot Spare feature is enabled, one of the redundant power supplies is switched to a sleep state.
The active power supply supports 100% of the load, thus operating at higher efficiency. The power supply
After working inside your system.
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