Dell 2650 manual Adding or Replacing a Microprocessor, Removing and Installing the Heat Sink

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To take advantage of future options in speed and functionality, you can add a second microprocessor or replace either the primary or secondary microprocessor.

NOTICE: The second microprocessor must be of the same type as the first. If the two microprocessors are different speeds, both will operate at the speed of the slower microprocessor.

Each microprocessor and its associated cache memory are contained in a PGA package that is installed in a ZIF socket on the system board.

NOTE: A microprocessor must be installed in socket 1, and a VRM must be installed for each installed microprocessor. To identify microprocessors and VRMs, see Figure 5-3.

NOTE: In a single microprocessor system, the microprocessor must be installed in the PROC 1 socket.

The following items are included in the microprocessor upgrade kit:

A microprocessor

A heat sink

Two securing clips

A cooling fan

A VRM, if adding a second microprocessor

Adding or Replacing a Microprocessor

CAUTION: Before you perform this procedure, read the safety instructions in your System Information document.

CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions in your System Information document.

1.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.

2.Remove the cover (see "Removing the Cover").

If you are installing a second microprocessor, go to step 6.

NOTE: The system is designed to allow you to remove the microprocessor heat sink without removing the microprocessor cooling fan. However, you can remove the fan to provide easier access to the heat sink retention clips (see "Removing a Cooling Fan").

3.Remove the microprocessor heat sink:

a.Press down on the heat-sink securing clips to release the clips from the retaining tabs on the ZIF socket (see Figure 4-27).

b.Remove the heat sink securing clips.

CAUTION: The microprocessor and heat sink can become extremely hot. Be sure the microprocessor has had sufficient time to cool before handling.

NOTICE: Never remove the heat sink from a microprocessor unless you intend to remove the microprocessor. The heat sink is required to maintain proper thermal conditions.

NOTICE: After removing the heat sink, place it upside down on a flat surface to prevent the thermal interface material from being damaged or contaminated.

c.Remove the heat sink.

Figure 4-27. Removing and Installing the Heat Sink

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Contents Initial release 24 Apr External Visual Inspection Initial User ContactInternal Visual Inspection Observing the Boot RoutineObtaining Technical Assistance Running the System DiagnosticsBack to Contents Front-Panel Indicators and Features System-Status IndicatorsSystem Identification Indicators Component Description Back-Panel Indicators and FeaturesPower-Button Indicator Codes Power Indicator CodesPower-Supply Indicator Codes Power-Button Indicator CodesHard-Drive Indicator Codes Hard-Drive Indicator CodesPower-Supply Indicator Codes Cooling Fan Indicator Codes NIC Indicator CodesLCD Status Messages LCD Status MessagesLine Causes Corrective Actions Message System Setup ProgramSee Memory Modules System Messages Solving Problems Described by LCD Status MessagesRemoving LCD Status Messages 10. System MessagesSetup Program Code Cause Corrective Action System Beep Codes11. System Beep Codes Support.dell.com Alert Messages Diagnostics MessagesSystem Board Features System FeaturesSupported Operating Systems Service FeaturesPower Protection Devices Other Documents You May Need Technical SpecificationsVideo PowerPhysical EnvironmentalBack to Contents Jumpers Jumpers-A General ExplanationSystem Board Jumpers Jumper Setting Description System Board ConnectorsSystem Board Jumper Settings Expansion-Card Riser-Board Components and PCI Buses Connector DescriptionScsi Backplane Board Components Scsi Backplane Board ConnectorsSystem Orientation Recommended ToolsSystem Cover BezelRemoving the Bezel Replacing the BezelReplacing the Cover Inside the SystemFront-Panel I/O Board Control-Panel Cable CoverRemoving the Control-Panel Cable Cover Replacing the Control-Panel Cable CoverRemoving the Control Panel Control PanelReplacing the Front-Panel I/O Board Removing a Cooling Fan System FansReplacing the Control Panel Removing the System-Fan Bracket System-Fan BracketReplacing a Cooling Fan Replacing the System-Fan Bracket Power SuppliesRemoving a Power Supply Removing the Expansion-Card Cage Replacing a Power SupplyExpansion-Card Cage Expansion Cards Expansion Card Installation GuidelinesReplacing the Expansion-Card Cage PCI Bus Scan OrderRemoving an Expansion Card Installing an Expansion CardRemoving the Expansion-Card Riser Board Expansion-Card Riser BoardMemory Module Installation Guidelines Memory Upgrade KitsSample Memory Module Configurations Memory ModulesTotal Desired Performing a Memory UpgradeInstalling Memory Modules Removing Memory Modules CD and Diskettes DrivesRemoving the CD/Diskette Drive Tray Replacing the CD/Diskette Drive TrayReplacing the CD and Diskette Drives on the Tray Removing the CD and Diskette Drives From the TrayReplacing the CD/Diskette Drive Cable Removing the CD/Diskette Drive CableHard Drives Scsi Configuration InformationExternal Scsi Tape Drive Removing a Hard Drive Installing a Hard DriveIntegrated RAID Controller Installing a Hard Drive on a CarrierRemoving a Hard Drive From Its Carrier Activating the Integrated RAID Controller20. Installing the RAID Controller Memory Module RAID Controller Card Installing a RAID Controller CardRemoving the Scsi Backplane Daughter Card Installing the Scsi Backplane Daughter CardScsi Backplane Daughter Card Replacing the Scsi Backplane Board Scsi Backplane BoardRemoving the Scsi Backplane Board Removing the System Board Tray System Board TrayMicroprocessors System Board Tray LeversReplacing the System Board Tray Removing the System Board Tray LeversAdding or Replacing a Microprocessor 27. Removing and Installing the Heat Sink28. Removing and Installing the Microprocessor Replacing the System Battery System BatteryRemoving the System Board System BoardReplacing the System Board Responding to Error Messages Entering the System Setup ProgramUsing the System Setup Program System Setup Navigation KeysMain Screen System Setup OptionsHard-Disk Drive Sequence Screen Boot Sequence ScreenIntegrated Devices Screen System Security ScreenAssigning a System Password Using the System Password FeatureConsole Redirection Screen Exit ScreenDeleting or Changing an Existing System Password Using Your System Password to Secure Your SystemDisabling a Forgotten Password Using the Setup Password FeatureAssigning a Setup Password Operating With a Setup Password EnabledBack to Contents Back to Contents