Honeywell R5500 Planning, Installation And Service Manual page 50

7. Lift the center riser board to access the LCNP4E/LCNP4E2 board as illustrated in the following
image and remove the riser board from the motherboard.
8. In PCIe slot 2, unlock the bracket notch and remove the bracket filler.
9. Insert the LCNP4E/LCNP4E2 board assembly in the PCIe slot 2 and lock the bracket notch, such
that the card does not move as illustrated in the following image.
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Chapter 5 - Servicing