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

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.

Card Priority	Card Type	Form Factor	Slot Priority	Max Allowed
1	Internal Storage (Integrated Slot)	Full Height	7, 2	2
	PCIE Extender Adapter (SSD)	Full Height	1	1
2	GPU	Full Height	1, 6	2
3	External SAS Controllers	Full Height	7, 2, 1, 6	2
		Low Profile	3, 4, 5	3
4	Fibre Channel 16 Gb	Full Height	6, 2, 1	3
		Low Profile	3, 4, 5	3
5	Converged Network Adapters	Full Height	6, 2, 1	3
		Low Profile	3, 4, 5	2
6	40 Gb InfiniBand	Full Height	6, 2, 1	3
		Low Profile	3, 4, 5	2
7	10 Gb Ethernet Controllers	Full Height	6, 2, 1	3
		Low Profile	3, 4	2

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