Dell PowerEdge XR8720t Installation and Service Manual
Expansion card installation guidelines
- Dual M.2 riser
- Riser 2
- Riser 1
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.
| Riser Configurations (RC) | Expansion card risers | PCIe Slots | Form factor | Controlling processor | Slot's electrical bandwidth/physical connector |
|---|---|---|---|---|---|
| RC1: 2 x8 DSFF
OCP Network optimized configuration | R1a | 1 | OCP | Processor 0 | PCIe Gen5 x8 (OCP 4C+ connector) |
| R1a | 2 | OCP | Processor 0 | PCIe Gen5 x8 (OCP 4C+ connector) | |
| RC 2: 2 x8 FHHL + 1 x16
FHHL Flexible configuration | R1b | 1 | Full height | Processor 0 | PCIe Gen5 x8 (x16 connector) |
| 2 | Full height | Processor 0 | PCIe Gen5 x8 (x16 connector) | ||
| R2a | 3 | Full height | Processor 0 | PCIe Gen5 x16 (x16 connector) |
| Card type | Slot priority | Maximum number of cards |
|---|---|---|
| Intel (OCP: 200Gb) | 1,2 | 2 |
| Foxconn (BOSS) | 21 | 1 |
| Foxconn (LOM - Floating SFP) | INT | 1 |
| Foxconn (LOM - Coplanar SFP)) | INT | 1 |
| Card type | Slot priority | Maximum number of cards |
|---|---|---|
| Foxconn (BOSS) | 21 | 1 |
| Foxconn (LOM - Coplanar QSFP)) | INT | 1 |
NOTE:*Feature not available at initial product launch. Refer to
the product configurator page on Dell.com to confirm feature availability.
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