Dell R820 Expansion Cards And Expansion-Card Risers, Expansion Cards Installation Guidelines

8.Close the system.

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

10.Enter the System Setup and verify that the USB key is detected by the system.

Figure 24. Replacing the Internal USB Key

1.USB memory key connector

2.USB memory key

Expansion Cards And Expansion-Card Risers

NOTE: A missing or an unsupported expansion-card riser logs an SEL event. It does not prevent your system from powering on and no BIOS POST message or F1/F2 pause is displayed.

Expansion Cards Installation Guidelines

The following PCI Express Generation 3 expansion cards are supported.

Riser	PCIe Slot	Processor Connection	Height	Length	Link Width	Slot Width
1	1	Processor 2	Full Height	Half Length	x16	x16
1	2	Processor 2	Full Height	Half Length	x8	x16
2	3	Processor 1	Low Profile	Half Length	x8	x16
2	4	Processor 2	Low Profile	Half Length	x8	x16
2	5	Processor 2	Low Profile	Half Length	x8	x16
3	6	Processor 1	Full Height	Half Length	x16	x16
3	7	Processor 1	Full Height	Half Length	x8	x8

NOTE: To use the PCIe slots 1 ,2, 4, and 5 on the risers, processors 1 and 2 must be installed.

NOTE: The expansion-card slots are not hot-swappable.

The following table provides guidelines for installing expansion cards to ensure proper cooling and mechanical fit. The expansion cards with the highest priority should be installed first using the slot priority indicated. All other expansion cards should be installed in card priority and slot priority order.

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