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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

Cooling-fan assembly

Removing the cooling fan assembly
Installing the cooling fan assembly

The cooling fan assembly is an essential part of a server’s cooling system. It ensures that the key components of the server such as the processors, hard drives, and memory get adequate air circulation to keep them cool. A failure in the server’s cooling system can result in the server overheating and may lead to damage.

Removing the cooling fan assembly

1.
Follow the safety guidelines listed in the Safety instructions section.
2.
Follow the procedure listed in the Before working inside your system section.
* 
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.
1.
Unlock the cooling fan assembly from the chassis by lifting the release levers.
2.
Lift the cooling fan assembly out of the chassis.
Figure 14. Removing the cooling fan assembly

This figure shows removing the cooling fan assembly.

a.
cooling fan assembly
b.
cooling fan (6)
c.
release lever (2)
d.
guide pin on the system board (2)
e.
cooling fan connector (6)
f.
guide pin on the chassis (6)
1.
Install the cooling fan assembly.
2.
Follow the procedure listed in the After working inside your system section.
Related tasks 
Before working inside your system
Installing the cooling fan assembly
After working inside your system
Related references 
Safety instructions

Installing the cooling fan assembly

* 
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.
1.
Follow the safety guidelines listed in Safety instructions section.
2.
Follow the procedure listed in the Before working inside your system section.
* 
CAUTION: Ensure that the cables are correctly installed and retained by the cable retention bracket before installing the cooling fan assembly. Incorrectly installed cables may get damaged.
1.
Align the slots on the cooling fan assembly with the guide pins on the chassis.
2.
Slide the cooling fan assembly into the chassis.
3.
Lock the cooling fan assembly into the chassis by lowering the release levers until firmly seated.
Figure 15. Installing the cooling fan assembly

This shows installing the cooling fan assembly

a.
cooling fan assembly
b.
cooling fan (6)
c.
release lever (2)
d.
guide pin on the system board (2)
e.
cooling fan connector (6)
f.
guide pin on the chassis (6)

Follow the procedure listed in the After working inside your system section.

Related tasks 
Before working inside your system
After working inside your system
Related references 
Safety instructions

System memory

General memory module installation guidelines
Mode-specific guidelines
Sample memory configurations
Removing memory modules
Installing memory modules

Your system supports DDR4 registered DIMMs (RDIMMs). System memory holds the instructions that are executed by the processor.

* 
NOTE: MT/s indicates DIMM speed in MegaTransfers per second.

Memory bus operating frequency can be 1866 MT/s, 2133 MT/s, or 2400 MT/s depending on the following factors:

•
DIMM type (RDIMM)
•
DIMM type (RDIMM or LRDIMM)
•
Number of DIMMs populated per channel
•
System profile selected (for example, Performance Optimized, Custom, or Dense Configuration Optimized)
•
Maximum supported DIMM frequency of the processors

Your system contains 24 memory sockets split into two sets of 12 sockets, one set per processor. Each 12-socket set is organized into four channels. In each channel, the release tabs of the first socket are marked white, the second socket black, and the third socket green.

Figure 16. Memory socket locations

This figure helps in locating memory sockets.

Memory channels are organized as follows:

Table 29. Memory channels

This tables describes memory channels and how the channels are organized.

Processor

Channel 0

Channel 1

Channel 2

Channel 3

Processor 1

Slots A1, A5, and A9

Slots A2, A6, and A10

Slots A3, A7, and A11

Slots A4, A8, and A12

Processor 2

Slots B1, B5, and B9

Slots B2, B6, and B10

Slots B3, B7, and B11

Slots B4, B8, and B12

The following table shows the memory populations and operating frequencies for the supported configurations:

Table 30. Memory population

This table describes the memory population and the operating frequencies.

DIMM Type

DIMMs Populated/Channel

Voltage

Operating Frequency (in MT/s)

Maximum DIMM Rank/Channel

RDIMM

1

1.2 V

2133, 1866, 1600, 1333

Dual rank or single rank

2

2133, 1866, 1600, 1333

Dual rank or single rank

3

1866, 1600, 1333

Dual rank or single rank

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