294 Upgrade and Maintenance Manual TX2550 M4
Expansion cards and backup units
Figure 199: PCI slot overview on the rear - high performance
*
Slot 5, 6, 7 are only available with a riser module installed
** When using an OCP module, the standard PCIe x16 slot is not usable.
PCI
slot
Type CPU Type Length/Height Function
1 PCIe Gen 3 1 x8 (mechanical x8) max. 167 mm / FH
second RAID
controller
2 PCIe Gen 3 1 x8 (mechanical x8) max. 167 mm / FH
preferred slot for RAID
controller (system
boot)
3 PCIe Gen 3 1 x8 (mechanical x8) max. 167 mm / FH
4 PCIe Gen 3 1
x16 (mechanical
x16)
Riser card (option)
4+1
*
PCIe Gen 3 1 x8 (mechanical x8) max. 252 mm / FH
4+2
*
PCIe Gen 3 1 x4 (mechanical x4) max. 252 mm / FH
4+3
*
PCI32 1 PCI32 max. 252 mm / FH
8 PCIe Gen 3 2
x16 (mechanical
x16)
max. 167 mm / FH
8
**
OCP 1 OCP connector
9 PCIe Gen 3 2
x16 (mechanical
x16)
max. 167 mm / FH