DELL E23S Series User Manual

5.

Close the system.

6.

If applicable, reconnect the external cables to the IO card.

7.

Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.

Network Daughter Card

The Network Daughter Card (NDC) contains the complete NIC subsystem, it replaces the traditional LAN-on-

Motherboard (LOM) design with the flexible new features, network types, speed and easy to upgrade from 1G to 10G 

LAN speeds.

NDC riser (I/O riser 1) is installed on a dedicated PCIe slot (2) on the system board. It provides the following interfaces 
from the system board:

•

PCIe x8 Gen3 link

•

PCIe x2 Gen2 link

•

Network Controller Sideband Interface (NC-SI)

•

I-two-C (I2C)

•

Power on and grounding

•

Miscellaneous control signals

Removing The Network Daughter Card

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 came with the product.

1.

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

peripherals.

2.

Open the system.

3.

Locate and remove the NDC riser (I/O riser 1).
The NDC is on riser 1.

4.

Using a #2 Phillips screwdriver, loosen the two captive screws that secure the network daughter card to the IO 

riser card.

5.

Hold the network daughter card by the edges on either side of the touch point and lift to remove it from the 

connector on the IO riser card.

6.

Slide the network daughter card away from the bracket until the NIC connectors are clear of the slot.

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