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DR Series DR4300 - Owner's Manual

DR4300 system overview Technical specifications Initial system setup and configuration Pre-operating system management applications
Options to manage the pre-operating system applications System Setup Dell Lifecycle Controller Boot Manager PXE boot
Installing and removing system components
Safety instructions Before working inside your system After working inside your system Recommended tools Front bezel (optional) System cover Cooling shroud Cooling fans Cooling-fan assembly System memory Processors and heat sinks PCIe card holder Cable retention bracket Integrated storage controller card Expansion cards and expansion card riser Internal dual SD module (optional) Network daughter card Internal USB memory key (optional) System battery Power supply units (PSU) System board Trusted Platform Module Hard drives Hard drive backplane SD vFlash card (optional) Control panel assembly
Using system diagnostics Jumpers and connectors Troubleshooting your system

Removing the system cover

1.
Follow the safety guidelines listed in the Safety instructions section.
2.
Turn off the system, including any attached peripherals.
3.
Disconnect the system from the electrical outlet and disconnect the peripherals.
4.
If installed, remove the optional bezel. For more information, see the Removing the optional front bezel section.
1.
Rotate the latch release lock counter clockwise to the unlocked position.
2.
Lift the latch toward the back of the system.
The system cover slides back and the tabs on the system cover disengage from the slots on the chassis.
* 
NOTE: The position of the latch may vary depending on the configuration of your system.
3.
Hold the cover on both sides, and lift the cover away from the system.
Figure 11. Removing the system cover

This figure shows removing the system cover.

a.
system cover
b.
latch
c.
latch release lock
1.
Install the system cover.
Related tasks 
Removing the optional front bezel
Installing the system cover
Related references 
Safety instructions

Installing the system cover

1.
Follow the safety guidelines listed in the Safety instructions section.
2.
Ensure that all internal cables are connected and placed out of the way and no tools or extra parts are left inside the system.
1.
Align the slots on the system cover with the tabs on the chassis.
2.
Push the system cover latch down to move the system cover into the closed position.
The system cover slides forward and the slots on the system cover engage with the tabs on the chassis. The system cover latch locks into place when the system cover is completely engaged with the tabs on the chassis.
3.
Rotate the latch release lock clockwise to the locked position.
1.
If removed, install the front bezel.
2.
Reconnect the peripherals and connect the system to the electrical outlet.
3.
Turn on the system, including any attached peripherals.
Related tasks 
Installing the optional front bezel
Related references 
Safety instructions

Cooling shroud

Removing the cooling shroud
Installing the cooling shroud

The cooling shroud has aerodynamically placed openings that direct the airflow across the entire system. The airflow passes through all the critical parts of the system, where the vacuum pulls air across the entire surface area of the heat sink, thus allowing increased cooling.

Removing the cooling shroud

* 
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.
* 
CAUTION: Never operate your system with the cooling shroud removed. The system may get overheated quickly, resulting in shutdown of the system and loss of data.
1.
Follow the safety guidelines listed in the Safety instructions section.
2.
Follow the procedure listed in the Before working inside your system section.
3.
If installed, remove the full-length PCIe card.
1.
Holding the touch points, lift the cooling shroud away from the system.
Figure 12. Removing the cooling shroud

This figure shows removing the cooling shroud.

a.
cooling shroud
b.
touch point (2)
1.
Install the cooling shroud.
2.
If required, install the full-length PCIe card.
3.
Follow the procedure listed in the After working inside your system section.
Related tasks 
Before working inside your system
Removing an expansion card from expansion card riser 2 or 3
Installing the cooling shroud
After working inside your system
Related references 
Safety instructions
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