Dell Precision 7920 Owner's Manual page 107

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Table 23. Expansion card riser specifications
Expansion card
PCIe slots on
riser
the riser
Riser 2A
Slot 5
Riser 2A
Slot 6
Riser 3A
Slot 7
Riser 3A
Slot 8
The expansion card slots are not hot-swappable.
NOTE:
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 24. No riser configurations
Card Type
NDC
PERC
GFX/GPU Compute (DW)
GFX (FH/SW)
GFX (LP)
PCIe SSD (LP) - Zoom 2
PCIe SSD (FH) - Zoom 2
PCIe SSD (FH) - Zoom 4
Teradici (P25) (LP)
Teradici (P25 or P45) (FH)
Serial (FH)
Serial (LP)
Audio (FH)
Audio (LP)
Processor
Height
connection
Processor 2
Full Height
Processor 1
Low Profile
Processor 2
Full Height
Processor 2
Full Height
Slot priority
NDC Slot
3, 1, 2
1,4,8
1,4,8,2,5,7
6
6
1,2,3,4,5,7,8
1,4,8
6
1,2,4,5,7,8
1,2,4,5,7,8
6
1,2,4,5,7,8
6
Length
Link
Full Length
x8
Half Length
x8
Full Length
x8
Full Length
x16
Maximum number of cards
1
1
3
up to 6
1
1
1
2 (*See Note 7)
1
2
1
1
1
1
Technology and components
Slot width
x16
x16
x16
x16
107

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