Expansion card installation guidelines
Figure 35. Expansion card slot connectors
1. Riser 1a or Riser 1a with support for SNAP I/O modules (Slot 1)
2. Riser 2b (Slot 2)
The following table describes the expansion card riser configurations:
Table 8. Expansion card riser configurations
Configurati
ons
Expansion
card risers
PCIe
Slots
Controlling
processor
Heigh
t
Length Slot
width
Supported configurations
Config1. with
1x LP
R1a
1
Processor 1
and 2
Low
Profile
Half
length
x16
●
12 x 3.5-inch drives
●
24 x 2.5-inch drives
●
8 x 2.5-inch NVMe drives
●
24 x 2.5-inch NVMe drives
●
No backplane
Config2. with
2x LP
R1a
1
Processor 1
and 2
Low
Profile
Half
length
x16
●
12 x 3.5-inch drives
●
24 x 2.5-inch drives
●
8 x 2.5-inch NVMe drives
●
24 x 2.5-inch NVMe drives
●
No backplane
R2b
2
Low
Profile
Half
length
x16
Config3. with
1x LP
R1b
1
Processor 1
and 2
Low
Profile
Half
length
x8 + x8
●
8 x 2.5-inch NVMe drives
●
No backplane
Config4. with
1x LP
R1b
1
Processor 1
and 2
Low
Profile
Half
length
x8 + x8
●
8 x 2.5-inch NVMe drives
●
No backplane
R2b
2
Low
Profile
Half
length
x16
32
Installing and removing system components
