Dell EMC PowerEdge T640 - Expansion Card Slot Priority

PCIe Slot Processor Connection Height Length Link Width Slot Width
5 (Gen3) Processor 2 Standard Height Full Length x4 x8
6 (Gen3) Processor 2 Standard Height Full Length x16 x16
7 (Gen3) Processor 2 Standard Height Full Length x8 x8
8 (Gen3) Processor 2 Standard Height Full Length x16 x16
NOTE: To use PCIe slots 4-8, both the processors must be installed.
NOTE: The expansion-card slots are not hot-swappable.
Expansion card slot priority
The following table describes the installation order for installing expansion cards to ensure proper cooling and mechanical t. The expansion
cards with the highest priority must be installed rst by using the slot priority indicated.
NOTE: To use PCIe slots 4, 5, 6, 7, and 8, both the processors must be installed.
NOTE: The expansion card slots are not hot-swappable.
NOTE: To use PCIe cards with external I/O in slots 1, 2, 3, right external fan must not be installed, and to use PCIe cards with
external I/O in slots 5, 6, 7, 8, left external fan must not be installed.
Table 40. Expansion card installation order
System Conguration Card
Priority
Card Type Slot Priority Maximum
Allowed
1 or 2 CPU, no GPU (no
external fan)
1 Dell PowerEdge Express Flash (PCIe SSD) Bridge 1, 3 2
2 RAID (H330), RAID (H730P) 0 1
RAID (H740P) 0, 1 2
RAID (H840), BOSS 4, 7, 1, 6, 8 5
3 Intel OPA NIC 1, 6 3
Mellanox CX4 DP 100 Gb NICs* 8, 1, 6, 3 4
Mellanox CX4 SP 100 Gb NIC* 8 1
4 Intel 40 Gb NIC 4, 7, 1, 6, 8, 3 6
Mellanox DP 40 Gb NIC* 8, 4, 7, 1, 6 5
Mellanox SP 25 Gb NIC 4, 7, 1, 6, 8 5
Intel DP 25 Gb NIC, Qlogic DP 25 Gb NIC 4, 7, 1, 6 4
Broadcom DP 25 Gb NIC 4, 7, 1, 6, 8, 3 6
5 FC32 HBAs, FC16 HBAs 4, 7, 1, 6, 8 5
6 Intel QP 10 Gb Base-T NIC* 8 1
7 Intel DP 10 Gb Base-T NIC, Intel 4x 10 Gb SFP+ NIC,
Broadcom DP 10 Gb 57416 NIC, Qlogic DP 10 Gb SFP
V2 NIC, Mellanox DP 10 Gb SFP+ NIC
4, 7, 1, 6, 8 5
130 Installing and removing system components