Owners Manual

NOTE: The memory module socket has an alignment key that enables you to install the memory module in the socket in
only one orientation.
4. Press the memory module with your thumbs until the socket levers firmly click into place.
Figure 42. Installing a memory module
Next steps
1. Install the air shroud.
2. Follow the procedure listed in After working inside your system on page 24.
3. To verify if the memory module has been installed properly, press F2 and navigate to System Setup Main Menu > System
BIOS > Memory Settings. In the Memory Settings screen, the System Memory Size must reflect the updated capacity of
the installed memory.
4. If the value is incorrect, one or more of the memory modules may not be installed properly. Ensure that the memory module
is firmly seated in the memory module socket.
5. Run the system memory test in system diagnostics.
Expansion cards and expansion card risers
NOTE:
A System Event Log (SEL) event is logged if an expansion card riser is not supported or missing. It does not prevent
your system from turning on. However, if a F1/F2 pause occurs with an error message, see Troubleshooting expansion
cards section in the Dell EMC PowerEdge Servers Troubleshooting Guide at www.dell.com/poweredgemanuals.
Expansion card installation guidelines
Depending on your system configuration, the following PCI Express (PCIe) generation 3 expansion cards are supported:
Table 11. Expansion card riser configurations
Expansion card riser PCIe slots on the
riser
Processor
connection
Height Length Slot
width
Riser 1A Slot 1 Processor 1 Low Profile Half Length x16
Slot 2 Processor 1 Low Profile Half Length x4
Riser 2A Slot 3 Processor 2 Low Profile Half Length x16
NOTE: The expansion card slots are not hot-swappable.
46 PowerEdge C4140 installing and removing system components