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Microprocessor: Dell OptiPlex GX300 System User's Guide
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Microprocessor: Dell™ OptiPlex™ GX300 System User's Guide
Use the following procedure to add a second microprocessor.
NOTICE: The second processor must be of the same type and speed as the first
processor.
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NOTES: Dell recommends that only a technically
knowledgeable person perform this procedure.
Your system must be running the Microsoft® Windows NT®
operating system to use a second microprocessor.
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NOTE: Before disconnecting a peripheral from the
system or removing a component from the system board, verify that the standby power
light-emitting diode (LED) on the system board has turned off. For the location of this
LED, see Figure 3 in
"Inside Your Computer." |
- Remove the computer cover according to the instructions in
"Removing and Replacing the Computer Cover."
- Rotate the power supply as described in
"Rotating
the Power Supply Away From the System Board."
- Remove the accelerated graphics port (AGP) card brace according to the instructions in
"Removing and Replacing the AGP Card Brace."
- Remove the terminator card from the secondary single-edge connector (SEC) cartridge
connector (labeled "PROC_1").
Press the SEC cartridge release latches inward
until they snap into position. Pull the terminator card straight out to remove it from the
connector.
- Install the voltage regulator module (VRM) in its socket on the system board.
For the location of the VRM socket, see Figure 3 in "Inside Your
Computer." Orient the VRM with its capacitors facing toward the power supply.
- Insert the new SEC cartridge/heat sink assembly into the system board connector.
Press
the SEC cartridge firmly into its connector until it is fully seated and the latches snap
into place. You must use up to 25 pounds (lb) of force to fully seat the SEC cartridge in
its connector. Install or replace the two large thumbscrews that secure the heat sink to
the system board.
- Replace the AGP card brace.
- Rotate the power supply back into position, making sure that the securing tab snaps into
place.
- Replace the computer cover, and reconnect your computer and peripherals to their power
sources and turn them on.
As the system boots, it detects the presence of the new
processor and automatically changes the system configuration information in the System
Setup program. If you installed a second microprocessor, the following message is
displayed:
Second processor detected
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NOTE: After you remove and replace the
cover, the chassis intrusion detector will cause the following message to be displayed at
the next system start-up:
ALERT! Cover was previously removed.
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- Enter System Setup, and confirm that the top line in the system data area correctly
identifies the installed processor(s).
See "Using System
Setup."
- While in System Setup, reset the chassis intrusion detector by changing Chassis
Intrusion to Enabled or Enabled-Silent.
See
"Chassis Intrusion" for
instructions.
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NOTE: If a setup password has been assigned by
someone else, contact your network administrator for information on resetting the chassis
intrusion detector.
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- If you installed a second microprocessor and your system is running the Microsoft
Windows NT 4.0 operating system, reinstall the operating system.
See
your Windows NT documentation for instructions.
When you reinstall Windows NT 4.0, the operating system detects the second
microprocessor.
- Run the Dell Diagnostics to verify that the new microprocessor is
operating correctly.
To upgrade an existing microprocessor, perform the following steps.
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NOTE: Dell recommends that only a
technically knowledgeable person perform this procedure.
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NOTE: Before disconnecting a peripheral from the
system or removing a component from the system board, verify that the standby power LED on
the system board has turned off. For the location of this LED, see Figure 3 in "Inside Your
Computer." |
- Remove the computer cover according to the instructions in "Removing and Replacing the Computer Cover."
- Rotate the power supply as described in "Rotating the Power
Supply Away From the System Board."
- Remove the AGP card brace according to the instructions in "Removing and Replacing the AGP Card Brace."
- Remove the existing microprocessor from its connector.
Squeeze in on the two pairs of
tabs on the airflow shroud and lift it away. Press outward on the guide bracket tabs to
release them from the processor/heat sink assembly. Then pull the processor/heat sink
assembly out of its connector (see Figure 1). You must use up to 15 lb of force to
disengage the processor from the connector.
Figure 1. Microprocessor Removal
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| 1 |
Airflow shroud |
| 2 |
Processor/heat sink assembly |
| 3 |
Guide bracket |
| 4 |
Second processor |
| 5 |
Cooling fan |
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- Insert the new microprocessor into the system board connector.
Press the processor
firmly into its connector until it is fully seated. You must use up to 25 lb of force to
fully seat the processor in its connector. Replace the airflow shroud.
- Replace the AGP card brace.
- Rotate the power supply back into position, making sure that the securing tab snaps into
place.
- Replace the computer cover, and reconnect your computer and peripherals to their power
sources and turn them on.
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NOTE: After you remove and replace the cover, the
chassis intrusion detector will cause the following message to be displayed at the next
system start-up: ALERT! Cover was previously
removed.
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- Enter System Setup, and confirm that the top line in the System Data
area correctly identifies the installed processor(s).
See "Using
System Setup."
- While in System Setup, reset the chassis intrusion detector by changing Chassis
Intrusion to Enabled or Enabled-Silent.
See
"Chassis Intrusion" for
instructions.
|
NOTE: If a setup password has been assigned by
someone else, contact your network administrator for information on resetting the chassis
intrusion detector.
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- Run the Dell Diagnostics to verify that the new microprocessor is
operating correctly.
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