Dell R820 owner manual Removing The Processor

•Installing an additional processor

•Replacing a processor

Your system supports two types of processor configurations:

•Four-processor configuration — Ships with a processor expansion module (PEM) that consists of two processor sockets (CPU3 and CPU4) and 24 memory module sockets.

•Two-processor configuration — Ships with a cooling shroud. The cooling shroud must be installed at all times to ensure adequate airflow within the system.

Removing The Processor

CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

1.Before upgrading your system, download the latest system BIOS version from dell.com/support and follow the instructions included in the compressed download file to install the update on your system.

NOTE: You can update the system BIOS using the Lifecycle Controller.

2.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet. When disconnected from the power source, press and hold the power button for three seconds to fully drain the system of stored power prior to removing the cover.

3.Open the system.

4.If applicable, remove the cooling shroud or the processor expansion module.

NOTE: To remove processor 3 or processor 4, ensure that you lift the release lever on the processor expansion module before proceeding.

WARNING: The heat sink and processor are hot to the touch for some time after the system has been powered down. Allow the heat sink and processor to cool before handling them.

CAUTION: Never remove the heat sink from a processor unless you intend to remove the processor. The heat sink is necessary to maintain proper thermal conditions.

5.Using a #2 Phillips screwdriver, loosen one of the heat-sink retention socket. Wait 30 seconds for the heat sink to loosen from the processor.

6.Loosen the second heat-sink retention socket.

7.Lift the heat sink away from the processor and set the heat sink aside.

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