HP BL860C - Manual (Page 35)

Figure 17 Mezzanine Port Heights
Installing a Mezzanine Card in Port 1
To insert a mezzanine card into the PCIe x4 port 1 on the system board:
1.
Line up the plastic pins on the mezzanine card connector with the PCIe x4 port on the system
board.
2. Push down on the card directly above the port to seat the card into the port (1).
Installing Additional Components 35