1 memory cooling shroud

2

memory shroud release tab

3

memory modules (8)

4 system processors (2)

Replacing the Memory Cooling Shroud

1To install the memory cooling shroud, align the shroud directly over the memory modules and the processors.

2Using the interior system board cooling shroud as a guide, slowly lower the shroud straight down onto the system, directly over the processors and memory modules.

3Gently press around the periphery of the shroud until it engages with the external tabs and snaps into place.

Power Supplies

Your system supports one or two power supplies rated at an output of 670 W. If only one power supply is installed, it must be installed in the left power supply bay (bay 1). If two power supplies are installed, the second power supply serves as a redundant, hot-plug power source.

NOTICE: In a non-redundant configuration, the power supply blank must be installed in the unoccupied power supply bay to ensure proper system cooling. See "Installing the Power Supply Blank" on page 56.

Removing a Power Supply

NOTICE: The system requires one power supply for the system to operate normally. The system is in the redundant mode when two power supplies are installed and both power supplies are connected to an AC power source. Remove and replace only one power supply at a time in a system that is powered on. Operating the system with only one power supply installed and without a power supply blank installed for extended periods of time can cause the system to overheat.

NOTICE: If only one power supply is installed, it must be installed in the left power supply bay (1).

NOTICE: If you connect the system to a power source in the range of 120 to 220 VAC, and if two power supplies are installed, the second power supply serves as a redundant, hot-plug power source.

NOTE: On your rack system, you may have to unlatch and lift the cable management arm if it interferes with power supply removal. For information about the cable management arm, see the system’s Rack Installation Guide.

1If your system has a single power supply, turn off the system and all attached peripherals. For a redundant system, you can leave the system running and proceed to the next step.

2Disconnect the power cable from the power source.

3Disconnect the power cable from the power supply and remove the cable from the cable retention bracket.

NOTICE: On a rack system, you may need to temporarily unlatch and lift the cable management arm. For information about the cable management arm, see the system’s Rack Installation Guide.

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Installing System Components

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Image 54
Dell 1950 owner manual Power Supplies, Removing a Power Supply, Memory cooling shroud, System processors