Dell PowerEdge T420, Owner'S Manual, Page: 86 / 167

1. slots (2)
2. tabs (2)
3. PCIe card holder
Installing The PCIe Card Holder
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. If applicable, rotate the system feet inward and lay the system on its side on a flat, stable surface.
NOTE: For systems installed with the wheel assembly, ensure that you lay the system on a sturdy, stable
surface with the wheel assembly extending off the edge of the surface.
3. Open the system.
4. Align the PCIe card holder with the slots on the chassis and push it down until seated.
5. Close the system.
6. If applicable, place the system upright on a flat, stable surface and rotate the system feet outward.
7. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
Expansion Cards
Expansion Card Installation Guidelines
Table 3. Supported PCI Express Generation 3 Expansion Cards
PCIe Slot Processor Connection Height Length Link Width Slot Width
1 Platform Controller Hub Full Height Half Length x4 x8
2 Platform Controller Hub Full Height Full Length x1 x8
3 Processor 1 Full Height Full Length x16 x16
4 Processor 1 Full Height Full Length x4 x8
5 Processor 2 Full Height Full Length x16 x16
6 Processor 1 Full Height Half Length x4 x8
NOTE: Only slots 3, 4, 5, and 6 support Generation 3 PCIe expansion cards.
NOTE: When your system is installed with a double-width GPU card in slot 3, you cannot install an expansion card
in slot 2.
NOTE: When your system is installed with a double-width GPU card in slot 5, you cannot install an expansion card
in slot 4.
NOTE: The expansion cards are not hot-swappable.
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