RX2540 M4 Upgrade and Maintenance Manual 257
Expansion cards and backup units
Figure 167: Installing the PRAID EP5x0i
Ê Connect the HDD LED cable to the connector "HDD LED1" on the system
board (see close-up 1).
Ê Install the PRAID EP5x0i in slot 1 or 2 (2), see section "Installing an
expansion card" on page 253.
Ê Connect the color-coded Oculink cables to the corresponding PCIe
backplane, see section "Connecting a 4x 2.5-inch PCIe SSD backplane" on
page 207.
I More configurations can be found in the cable plan, see chapter
"Appendix B" on page 573.
Example one Retimer controller in slot 3
I To connect the HDD backplane 1, install the Retimer controller in slot 3.