Dell PowerEdge R830 Owner's Manual

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Expansion card installation guidelines

Depending on your system configuration, the following PCI Express (PCIe) generation 3 expansion cards are supported:

Table 1. Supported expansion cardsOn riser 1, the PCIe slot 1 is mapped to processor 2. This slot supports full Height, half lengthx16 expansion cards. This is an x16 slot. On riser 1, the PCIe slot 2 is mapped to processor 2. This slot supports full Height, half lengthx8 expansion cards. This is an x16 slot. On riser 2, the PCIe slot 3 is mapped to processor 1. This slot supports low profile, half lengthx8 expansion cards. This is an x16 slot. On riser 2, the PCIe slot 4 is mapped to processor 2. This slot supports low profile, half Lengthx16 expansion cards. This is an x16 slot. On riser 2, the PCIe slot 5 is mapped to processor 1. This slot supports low profile, half Lengthx8 expansion cards. This is an x16 slot. On riser 3, the PCIe slot 6 is mapped to processor 1. This slot supports full Height, half Lengthx16 expansion cards. This is an x16 slot. On riser 3, the PCIe slot 7 is mapped to processor 1. This slot supports full Height, half Lengthx8 expansion cards. This is an x8 slot.
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 the other expansion cards should be installed in the card priority and slot priority order.

Table 2. Expansion card installation order The table describes the slot priority for expansion card installation.
Card Priority	Card Type	Form Factor	Slot Priority	Max Allowed
1	Internal Storage (Integrated Slot)	Full Height	7, 6	2
2	External SAS Controllers	Full Height	7, 6, 2, 1	2
2	External SAS Controllers	Low Profile	3, 4, 5	3
3	Fibre Channel 16 Gb	Full Height	7, 6, 2	3
3	Fibre Channel 16 Gb	Low Profile	3, 4, 5	3
4	Converged Network Adapters	Full Height	7, 6, 2	3
4	Converged Network Adapters	Low Profile	3, 4, 5	2
5	40 Gb InfiniBand	Full Height	7, 6, 2	3
5	40 Gb InfiniBand	Low Profile	3, 4, 5	2
6	10 Gb Ethernet Controllers	Full Height	7, 6, 2	3
		Low Profile	3, 4	2
		Low Profile	3, 4, 5	2
7	Fibre Channel 8 Gb Dual Port	Full Height	7, 6, 2	3
7	Fibre Channel 8 Gb Dual Port	Low Profile	3, 4, 5	2
8	Fibre Channel 8 Gb Single Port	Full Height	7, 6, 2	3
8	Fibre Channel 8 Gb Single Port	Low Profile	3, 4, 5	3
9	Fibre Channel 4 Gb Single/Dual Port	Full Height	7, 6, 2	3
9	Fibre Channel 4 Gb Single/Dual Port	Full Height	7, 6, 2	3
10	1 Gb NICs	Low Profile	3, 4	2
10	1 Gb NICs	Full Height	7, 6, 2	3
11	External Non-RAID Controller	Full Height	7, 6, 2, 1	3
12	NVMe PCIe SSD card	Full Height	7, 6, 2, 1	2
		Full Height (Low Profile)	7, 6, 2, 1 (3 ,4)	4
		Full Height , Half Length	6, 1, 2, 7	4
13	Mellanox ConnectX-4	Full Height	6, 1	2