Dell PowerEdge R620 Owner's Manual

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Expansion card installation guidelines

Your system supports PCI Express Generation 3 expansion cards.

NOTE: A missing or an unsupported 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.

Table 1. Systems supporting three pcie expansion cards
Riser	PCIe Slot	Processor Connection	Height	Length	Link Width	Slot Width
1	1	Processor 2	Low Profile	Half Length	x8	x16
1	2	Processor 2	Low Profile	Half Length	x16	x16
3	3	Processor 1	Low Profile	Half Length	x16	x16

NOTE: Both the processors must be installed to use riser 1 slots.

Table 2. Systems supporting two pcie expansion cards
Riser	PCIe Slot	Processor Connection	Height	Length	Link Width	Slot Width
2	1	Processor 1	Low Profile	Half Length	x8	x16
2	1	Processor 2	Low Profile	Half Length	x16	x16
3	2	Processor 1	Full height	Three-fourth Length	x16	x16

NOTE: You can install expansion cards only on one slot on riser 2.

NOTE: Both the processors must be installed to use the x16 link on the riser 2 slot.

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

Table 3. Expansion-card installation priority
Card Priority	Card Type	Systems Supporting up to 2 PCIe Expansion Cards		Systems Supporting up to 3 PCIe Expansion Cards
Card Priority	Card Type	Slot Priority	Max Allowed	Slot Priority	Max Allowed
1	PCIe Bridge	2	1	N/A	N/A
2	RAID	1	1	1, 2, 3	3
3	Converged Network Adapter	2	1	3, 2, 1	3
4	10 Gb NICs	3, 1	2	3, 2, 1	3
5	FC8 HBA	2	1	3, 2, 1	3
6	FC4 HBA	2	1	3, 2, 1	3
7	FC16 HBA	2	1	3, 2, 1	1
8	1 Gb NICs	2	1	3, 2, 1	3
9	Non-RAID	2	1	1, 2, 3	3