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HP Z420 Workstation - Removing and Replacing the Processor

Introduction
This document is provided to assist in removing and replacing the processor for the HP Z420 Workstation.
Minimum skill level
The end user must possess extensive product-specific knowledge and technical skill on how to service the system, and be familiar with the operating system.
Parts required
  note:
Part numbers are subject to change.
The replacement part number will vary depending on the processor that is being replaced. If a part is listed as "Yes" under "Requires Return", then the defective part needs to be returned to HP. Click here for more information on returning parts to HP.
Description
Part Number
Requires Return
Intel Quad-Core 64-bit Xeon E5-1620 processor - 3.60 GHz (Sandy Bridge, 10MB Cache, 1066 MHz, 130 W Thermal Design Power, Flip-Chip Land Grid Array 2011 socket)
683610-001 (Modified)
Yes
Intel Quad-Core 64-bit Xeon E5-1603 processor - 2.80 GHz (Sandy Bridge, 10MB Cache, 1066 MHz, 130 W Thermal Design Power, Flip-Chip Land Grid Array 2011 socket)
683608-001 (Modified)
Yes
Intel Quad-Core 64-bit Xeon E5-1607 processor - 3.0 GHz (Sandy Bridge, 10MB Cache, 1066 MHz, 130 W Thermal Design Power, Flip-Chip Land Grid Array 2011 socket)
683609-001 (Modified)
Yes
Intel Cix-Core 64-bit Xeon E5-1650 processor - 3.20 GHz (Sandy Bridge, 10MB Cache, 1066 MHz, 130 W Thermal Design Power, Flip-Chip Land Grid Array 2011 socket)
683611-001 (Modified)
Yes
Intel Quad-Core 64-bit Xeon E5-1660 processor - 3.30 GHz (Sandy Bridge, 10MB Cache, 1066 MHz, 130 W Thermal Design Power, Flip-Chip Land Grid Array 2011 socket)
683612-001 (Modified)
Yes
Intel Eight-Core 64-bit Xeon E5-2665 processor - 2.40 GHz (Sandy Bridge-EP, 20MB Cache, Intel QPI Speed 8.0 GT/s, 115 W Thermal Design Power, Flip-Chip Land Grid Array 2011 socket)
683621-001 (Modified)
Yes
Intel Eight-Core 64-bit Xeon E5-2687W processor - 3.10 GHz (Sandy Bridge-EP, 20MB Cache, Intel QPI Speed 8.0 GT/s, 150 W Thermal Design Power, Flip-Chip Land Grid Array 2011 socket)
684022-001 (Modified)
Yes
  note:
For customers in countries/regions with RoHS legislation (e.g. EU, China, etc.) restricting the use of hazardous substances in electrical equipment. The use of the "Original" spare part is regulated by RoHS legislation. If the unit contains a part that is labeled with the "Modified" spare number, the "Modified" spare part must be ordered as the replacement part. If the unit contains a part that is labeled with the "Original" spare number, please order the "Original" spare number as the replacement part. In this case, either the "Original" or the "Modified" spare number may be shipped which will not affect performance or functionality of the unit.
Summary of instructions
To view a video demonstrating the procedure for removing the processor, click here to view the HP Services Media Library and then click on Remove/Replace videos. On the new window, select Processor from the menu on the upper left hand side of the screen.
Processor removal
  1. Review the safety considerations before performing the steps listed below by clicking on the following link:
      caution:
    Failure to comply with the precautions could result in damage to the product or loss of data.
  2.   note:
    Before removing the processor, take special note of the gold triangle on one corner and the notches on two sides of the processor. The processor must be installed in the same orientation in which it was removed or it may be destroyed.
  3. Push down and out on the processor load plate lever marked with the unlock icon and allow it to rise to the spring tension position.
  4. Push down and out on the processor load plate lever marked with the lock icon, and then rotate the lever back until it is fully open.
  5. Use the finger to rotate the load plate up until it is fully open.
  6. Lift the processor to remove.
      note:
    Always handle the processor by its sides. Do not touch the contacts on the underside of the processor or inside the processor socket. Damaging the contacts may result in processor failure.
Processor replacement
  1. Align the processor in the correct orientation and carefully place it straight down into the socket.
  2. Lower the load plate over the processor socket.
  3. Lower the load plate lever marked with the lock icon and place it securely into its latch.
  4. Lower the load plate lever marked with the unlock icon and place it securely into its latch.
      note:
    The thermal grease between the processor and heat sink should be replaced every time the processor is removed. See the heat sink removal and replacement video in this series for instructions on replacing the thermal grease.
  5. After installing a new processor, be sure to update the BIOS to the latest revision.
  note:
Please refer to the product-specific Maintenance and Service guide for any future technical information and/or installation guidelines for this component. Click here to access product-specific Maintenance and Service guide.

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