Dell EMC PowerEdge R940xa Processor Upgrade Tech Sheet
Text of the manual
© 2018 Dell Inc. or its subsidiaries.
2018-05
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PowerEdge R940xa-
Processor Upgrade Tech Sheet
Processor Upgrade Tech
Sheet
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 are shipped with your product.
NOTE: It is recommended that you always use an antistatic mat and antistatic
strap while working on components inside the system.
To convert the system from 2 CPU to 4 CPU
configuration:
1. Install the additional processor, see the Installing the processor on the
processor and heat sink module section.
2. Install the processor and heat sink module, see the Installing the processor
and heat sink module section.
3. Install the Slimline/SAS cables and repositioning the PERC card(s) on the
riser slot(s). See the Installing the Slimline/SAS cable and PERC card to
the riser section.
Installing the processor on the
processor and heat sink module
Install the additional processor one after the other as per the following instructions.
Prerequisites
Remove the system cover, support bar and the air shrouds.
For more information, see Dell EMC PowerEdge R940xa Installation and Service
Manual available at Dell.com/poweredgemanuals.
CAUTION: Never remove the heat sink from a processor unless you
intend to replace the processor. The heat sink is necessary to maintain
proper thermal conditions.
WARNING: The heat sink may be hot to touch for some time after the
system has been powered down. Allow the heat sink to cool before
removing it.
1. Place the processor in the processor tray.
NOTE: Ensure that the pin 1 indicator on the processor tray is aligned
with the pin 1 indicator on the processor.
2. Flex the outer edges of the bracket around the processor ensuring that the
processor is locked into the clips on the bracket on the processor.
NOTE: Ensure that the pin 1 indicator on the bracket is aligned with
the pin 1 indicator on the processor before placing the bracket on the
processor.
NOTE: Ensure that the processor and the bracket are placed in the tray
before you install the heat sink.
3. If you are using an existing heat sink, remove the thermal grease from the
heat sink by using a clean linen free cloth.
4. Use the thermal grease syringe included with your processor kit to apply the
grease in a quadrilateral design on the top of the processor.
WARNING: Applying too much thermal grease can result in excess
grease coming in contact with and contaminating the processor socket.
NOTE: The thermal grease syringe is intended for single use only. Dispose
the syringe after you use it.
5. Place the heat sink on the processor and push down on the base of the heat
sink until the bracket locks on the heat sink.
NOTE: Ensure that the two guide pin holes on the bracket match the
guide holes on the heat sink.
NOTE: Do not press on the heat sink fins.
NOTE: Ensure that the pin 1 indicator on the heat sink is aligned with
the pin 1 indicator on the bracket before placing the heat sink on the
processor and bracket.
