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Dell PowerEdge R940 Installation and Service Manual
Hide Table of Contents
Notes, cautions, and warnings
PowerEdge R940 overview
Supported configurations for the PowerEdge R940
Front view of the system
Left control panel view
Status LED indicators
System health and system ID indicator codes
iDRAC Quick Sync 2 indicator codes
Right control panel
iDRAC Direct LED indicator codes
Back view of the system
NIC indicator codes
Power supply unit indicator codes
Drive indicator codes
LCD panel
Viewing Home screen
Setup menu
View menu
Locating the Service Tag of your system
System information label
Documentation resources
Initial system setup and configuration
Setting up your system
iDRAC configuration
Options to set up iDRAC IP address
Log in to iDRAC
Options to install the operating system
Methods to download firmware and drivers
Downloading drivers and firmware
Installing and removing system components
Safety instructions
Before working inside your system
After working inside your system
Recommended tools
Optional front bezel
Removing the optional front bezel
Installing the optional front bezel
System cover
Removing the system cover
Installing the system cover
Inside the system
Air shroud
Removing the air shroud
Installing the air shroud
Cooling fans
Removing the cooling fan
Installing the cooling fan
Fan cage
Removing the fan cage
Installing the fan cage
Removing the fan tray
Installing the fan tray
Intrusion switch
Removing an intrusion switch
Installing an intrusion switch
Drives
Removing a drive blank
Installing a drive blank
Removing a drive carrier
Installing a drive carrier
Removing the drive from the drive carrier
Installing a drive into the drive carrier
Drive backplane
Drive backplane connectors
Removing drive backplane
Installing drive backplane
Cable routing
System memory
System memory guidelines
General memory module installation guidelines
NVDIMM-N memory module installation guidelines
PMem installation guidelines
Mode-specific guidelines
Removing a memory module
Installing a memory module
Processors and heat sinks
Removing a processor and heat sink module
Removing the processor from the processor and heat sink module
Installing the processor into a processor and heat sink module
Installing a processor and heat sink module
Processor expansion module
Removing the PEM
Installing the PEM
UPI cable routing
PEM power board
Removing the PEM power board
Installing the PEM power board
Expansion cards and expansion card risers
Expansion card installation guidelines
Removing expansion card riser blank
Installing expansion card riser blank
Removing the expansion card riser
Installing the expansion card riser
Removing the expansion card from expansion card riser
Installing expansion card into expansion card riser
M.2 SSD module
Removing the M.2 SSD module
Installing the M.2 SSD module
Network daughter card riser
Removing the NDC riser
Installing the NDC riser
Network daughter card
Removing the NDC
Installing the NDC
Storage controller card
Removing the storage controller card
Installing the storage controller card
Optional IDSDM or vFlash module
Removing the MicroSD card
Installing the MicroSD card
Optional IDSDM or vFlash module
Removing the optional IDSDM module
Installing optional IDSDM module
Power supply unit
Hot spare feature
Removing a power supply unit blank
Installing a power supply unit blank
Removing a power supply unit
Installing a power supply unit
Wiring instructions for a DC power supply unit
NVDIMM-N battery
Removing the NVDIMM-N battery
Installing NVDIMM-N battery
NVDIMM battery cable routing
System battery
Replacing system battery
Optional internal USB memory key
Replacing the optional internal USB memory key
System board
Removing the system board
Installing the system board
Entering the system Service Tag by using System Setup
Restoring the Service Tag by using the Easy Restore feature
Trusted Platform Module
Upgrading the Trusted Platform Module
Initializing TPM for BitLocker users
Initializing the TPM 1.2 for TXT users
Initializing the TPM 2.0 for TXT users
Control panel
Removing the right control panel
Installing the right control panel
Removing the left control panel
Installing the left control panel
System diagnostics
Dell Embedded System Diagnostics
Running the Embedded System Diagnostics from Boot Manager
Running the Embedded System Diagnostics from the Dell Lifecycle Controller
System diagnostic controls
PowerEdge R940 Jumpers and connectors
System board jumpers and connectors
System board jumper settings
Disabling forgotten password
Minimum configuration to POST
Getting help
Recycling or End-of-Life service information
Contacting Dell
Documentation feedback
Accessing system information by using QRL
Quick Resource Locator for PowerEdge R940 system
Receiving automated support with SupportAssist
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Removing the cooling fan
Prerequisites
WARNING:
Do not drop the fan into the fan cage while removing or installing the fan as this may cause damage to the connectors on the fan tray. Exercise utmost care while removing or installing cooling fans.
Follow the safety guidelines listed in
Safety instructions
.
Follow the procedure listed in
Before working inside your system
.
Steps
Press the release tabs and lift the cooling fan out of the fan cage.
Figure 1.
Removing the cooling fan
Next steps
Install the cooling fan
.
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