Dell POWEREDGE M915 - Manual (Page 279)

Installing Blade Components 279
To remove a half-height blade system board, hold the blade chassis with one
hand, lift and pull the system board retention latch with the other hand,
and then slide the system board out of the open end of the chassis. See
Figure 3-62.
Figure 3-62. Removing and Installing the System Board - Half-Height Blades
NOTE: If you are removing multiple mezzanine cards, label them so you can
replace them in their original locations.
10 Ensure that the I/O connector cover is still in place on the I/O connector at
the back of the board. See Figure 3-61 or Figure 3-62.
1 I/O connector cover 2 retention latch
3 system board 4 tabs on system chassis
5 slots in system board tray
1 2
3
4
5