Dell PowerEdge R940 Installation and Service 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. Expansion card riser configurationsThis table provides information about the expansion card riser configuration for PowerEdge R940 system.
Riser PCIe slot on the expansion card riser Processor connection PCIe slots on riser (Height) PCIe slots on riser (length) Link width Slot width
Riser 2 (IO_RISER2) Slot 8 Processor 3 full height 3/4 length x16 x16
Slot 9 Processor 3 full height half length x16 x16
Slot 10 Processor 3 full height half length x16 x16
Riser 3 (IO_RISER3) Slot 11 Processor 4 full height 3/4 length x16 x16
Slot 12 Processor 4 full height half length x16 x16
Slot 13 Processor 4 full height half length x16 x16
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.

Table 2. Expansion card installation order—Two processor configurationThis table provides information about the expansion card installation order for two processor configuration system.
Card type Slot priority Maximum number of cards
PERC 10, H740P Internal Storage adapter 1,6 2
PERC 9, H730P Internal Storage adapter 1,6 2
PERC H330 Internal Storage adapter 1 1
PCIe extender card 4, 7, 2 3
PCIe HCA : EDR card(Mellanox) 4, 3, 2, 7 3
100 Gb NIC (Mellanox) 4, 3, 2, 7 3
100 Gb OPA (Intel) 2, 4, 3, 7 4
External adapter (12 Gbps HBA, H840, H830) 5, 1, 6, 2, 4, 3, 7 2
NVMe PCIe storage PM17 Series (Samsung/Dell/Intel) 5, 4, 3, 7, 2, 6, 1 7
NVMe PCIe storage P4800X (Dell/Intel) 5, 4, 3, 2, 6, 1 6
40 Gb (x8) NIC (Intel/Mellanox) 5, 1, 6, 2, 4, 3, 7 7
FC32 HBA (Emulex/QLogic) 5, 1, 6, 2, 4, 3, 7 7
25 Gb NIC x8 (Intel/Broadcom/Mellanox/Qlogic) 5, 1, 6, 2, 4, 3, 7 7
25 Gb NIC x16 (Mellanox) 4, 3, 2, 7 3
FC16 HBA (Emulex/QLogic) 5, 1, 6, 2, 4, 3, 7 7
10 Gb NIC Base-T Quad Port ( Intel) 4, 3, 5, 2 4
10 Gb NIC Dual Port - 57412 (Broadcom) 5, 1, 6, 2, 4, 3, 7 7
10 Gb NIC Dual Port - 57416 (Broadcom) 5, 1, 6, 2, 4, 3 6
10 Gb NIC SFP+( Intel) 5, 1, 6, 2, 4, 3, 7 7
10 Gb NIC SFP+ (Mellanox) 4, 3, 2, 7, 5, 1, 6 7
10 Gb NIC BT, DP (QLogic) 5, 1, 6, 2, 4, 3 6
10 Gb NIC SFP, DP (QLogic) 5, 1, 6, 2, 4, 3, 7 7
10 Gb NIC SFP+, DP (QLogic) 5, 1, 6, 2, 4, 3, 7 7
10 Gb NIC BT QP (QLogic) 2, 4, 3, 7 4
10 Gb NIC SFP QP (QLogic) 5, 1, 6, 2, 4, 3, 7 7
10 GB NIC SF852P/SF852X DP (SolarFlare) 5, 1, 6, 2, 4, 3, 7 7
10 Gb NIC Base-T Dual Port ( Intel) 5, 1, 6, 2, 4, 3 6
FC 8 HBA (Emulex and QLogic) 5, 1, 6, 2, 4, 3, 7 7
1 GB NIC (Broadcom and Intel) 5, 1, 6, 2, 4, 3 6
BOSS adapter - Internal Storage 5, 1, 6, 2, 4, 3 1
Table 3. Expansion card installation order—Four processor configurationThis table provides information about the expansion card installation order for four processor configuration system.
Card type Slot priority Maximum number of cards
PERC 10, H740P Internal Storage adapter 1,6 2
PERC 9, H730P Internal Storage adapter 1,6 2
PERC H330 Internal Storage adapter 1 1
PCIe extender card 11,12,8 3
PCIe HCA : EDR CX5 card(Mellanox) 11, 8, 3, 4, 12, 9, 2, 10, 13, 7 4
PCIe HCA : EDR CX4 card(Mellanox) 11, 8, 3, 4, 12, 9, 2, 10, 13, 7 8
100 Gb NIC (Mellanox) 11, 8, 3, 4, 12, 9, 2, 10, 13, 7 8
HCA H100 Card (Mellanox) 11, 8, 3, 4, 12, 9, 2, 10, 13, 7 4
100 Gb OPA (Intel) 2, 4, 8, 11, 3, 7, 9, 12, 10, 13 4
External adapter (12 Gbps HBA, H840, H830) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 2
NVMe PCIe storage PM17 Series (Samsung/Dell/Intel) 5, 8, 11, 4, 9, 12, 3, 7, 10, 13 10
NVMe PCIe storage P4800X (Dell/Intel) 5, 8, 11, 4, 9, 12, 3, 10, 13 9
NVMe PCIe Storage P4500/P4600 5, 8, 11, 4, 9, 12, 3, 7, 10, 13 10
40 Gb (x8) NIC (Intel) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 13
40 Gb (x8) NIC (Mellanox) 11, 8, 3, 4, 12, 9, 2, 10, 13, 7, 6, 1, 5 8
FC32 HBA (Emulex/QLogic) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 13
25 Gb NIC x8 (Intel/Broadcom/Mellanox/Qlogic) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 13
25 Gb NIC x16 (Mellanox) 11, 8, 3, 4, 12, 9, 2, 10, 13, 7 8
FC16 HBA (Emulex/QLogic) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 13
10 Gb NIC Base-T Quad Port ( Intel) 11, 10, 2, 4 4
10 Gb NIC Dual Port - 57412 (Broadcom) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 13
10 Gb NIC Dual Port - 57416 (Broadcom) 5, 1, 6, 11, 2, 4, 9, 12, 3, 10, 13 11
10 Gb NIC SFP+( Intel) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 13
10 Gb NIC SFP+ (Mellanox) 11, 8, 3, 4, 12, 9, 2, 10, 13, 7, 6, 1, 5 8
10 Gb NIC BT, DP (QLogic) 5, 1, 6, 11, 2, 4, 9, 12, 3, 10, 13 11
10 Gb NIC SFP, DP (QLogic) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 13
10 Gb NIC SFP+, DP (QLogic) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 13
10 Gb NIC BT QP (QLogic) 8, 11, 2, 4, 3, 7 6
10 Gb NIC SFP QP (QLogic) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 13
10 GB NIC SF852P/SF852X DP (SolarFlare) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 13
10 Gb NIC Base-T Dual Port ( Intel) 5, 1, 6, 11, 2, 4, 9, 12, 3, 10, 13 11
FC 8 HBA (Emulex and QLogic) 5, 1, 6, 8, 11, 2, 4, 9, 12, 3, 7, 10, 13 13
1 GB NIC (Broadcom and Intel) 5, 1, 6, 11, 2, 4, 9, 12, 3, 10, 13 11
BOSS adapter - Internal Storage 5, 1, 6, 11, 2, 4, 9, 12, 3, 10, 13 1

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