Dell POWEREDGE M915 - Manual (Page 283)

Installing Blade Components 283
4 Reinstall the system board. See "Installing the System Board" on page 280.
5 Install the blade. See "Installing a Blade" on page 158.
Midplane Interface Card (PowerEdge M610x)
The midplane interface card is an additional chassis option that provides the
capability to use PCIe cards.
Removing the Midplane Interface Card
1 Remove the blade. See "Removing a Blade" on page 155.
2 Open the blade. See "Opening the Blade" on page 159.
3 Install an I/O connector cover on the I/O connector(s) at the back of the
board.
4 Remove both mezzanine cards, if present. See "Removing a Mezzanine
Card" on page 222.
NOTE: If you are removing multiple mezzanine cards, label them so that you can
replace them in their original locations.
5 Ensure that the I/O connector cover is still in place on the I/O connector at
the back of the board.