Removing The Existing Microprocessor Boards - Dell PowerEdge 8450 Upgrade Manual

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Handle components and cards with care. Don't touch the components or con-
tacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a
component such as a microprocessor chip by its edges, not by its pins.
Removing the Existing Microprocessor
Boards
To remove the microprocessor boards, perform the following steps.
NOTICE: Before proceeding, ensure that you have upgraded the system
BIOS to version A03 or later. See "Update the System BIOS" found earlier
in this document.
CAUTION: The microprocessors can get extremely hot during system
operation. Be sure that the system has had sufficient time to cool before
you begin this procedure.
WARNING: Before you perform this procedure, you must turn off the com-
puter and disconnect it from its AC power source. For more information, see
"Safety First—For You and Your Computer" in your system's Installation and
Troubleshooting Guide.
1. Turn off the system, including any attached peripherals, and disconnect the AC
power cable from its power source.
NOTICE: See "Protecting Against Electrostatic Discharge" in the safety
instructions at the front of your system's Installation and Troubleshooting
Guide.
Before working on components inside the system, use a wrist grounding strap
for ESD protection.
2. Disconnect all cables from the system.
3. Loosen the thumbscrews on either side of the front bezel that secure the
computer to the rack.
4. Slide the computer away from the rack.
Microprocessor Board Upgrade Guide 1-3