Installing The Processor - Dell Precision Workstation 470 User Manual

Removing and Replacing Parts: Dell Precision Workstation 470 and 670 Computers User's Guide
Your computer is designed for dual-processor operations. The heat sinks (CPU_0 and CPU_1) are keyed to fit their
specific connector.
For single-processor operations, the processor must be installed in socket CPU_0. The VRM for the single processor is
already installed and cannot be removed. Processor socket 1 and VRM connector must be empty. To locate these
components, see the system board components illustration (for the Dell Precision 670 computer, see
Components" and for the Dell Precision 470 computer, see
inside your computer.
For dual-processor operations, both processor sockets and the VRM connector must be populated. To locate the VRM
connector, see the system board components illustration (for the Dell Precision 670 computer, see
Components" and for the Dell Precision 470 computer, see
inside your computer.
For dual-processor operations, the two processors and the VRMs must be identical. If the processors do not match, you
will receive a system message. If the processors voltage don't match or the VRM is not properly installed, the
diagnostic lights indicate an error.
If you are upgrading your processor, keep your original processor heat sink and securing clips for future
troubleshooting.
If you are removing the second processor (CPU_1), you must also remove the VRM.

Installing the Processor

CAUTION: The processor can get very hot during normal operation. Ensure that the processor has had
sufficient time to cool before you touch it.
CAUTION: Before you perform this procedure, follow the safety instructions located in the Product
Information Guide.
NOTICE: If you are installing a second processor, you must remove the first heat sink before you can install the
second processor and heat sink.
1. Follow the procedures in
2. Remove the processor airflow
If you are replacing a processor, see
NOTICE: You must position the processor correctly in the socket to avoid permanent damage to the processor and the
computer.
3. If the release lever is not extended to the release position, move it to that position.
4. Align pin-1 (the imprinted corner) of the processor and pin-1 of the socket.
NOTICE: Processor pins are delicate. To avoid damage, ensure that the processor aligns properly with the socket, and
do not use excessive force when you install the processor.
5. Carefully set the processor in the socket and press it down lightly to seat it.
6. Rotate the release lever back toward the system board until it snaps into place, securing the processor.
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