Replacing/Adding The Lcnp4E/Lcnp4E2 Board - Honeywell R5500 Planning, Installation And Service Manual

Chapter 5 - Servicing
Replacing/adding the LCNP4M board
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Inserting the LCNP4M board in slot 2
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5.2.1

Replacing/adding the LCNP4E/LCNP4E2 board

If the LCNP4E/LCNP4E2 board is located in the PCIe slot 6 of the workstation, use this procedure to
replace the LCNP4E/LCNP4E2 assembly in PCIe slot 2.
ATTENTION
Honeywell-qualified Dell R5500 workstation (model numbers MZ-PCWS71 and MZ-PCWS72)
are shipped with single CPU configuration.
The PCIe slots 5 and 6 of the Dell R5500 workstation are used for communicating with the CPU-
2 through QPI (Intel Quick Path Interconnect). If LCNP4e/LCNP4e2 is installed in slot 6, which
communicates to CPU-2, (physically not available) then the PCI communication is redirected
through a second QPI to communicate with CPU-1. The data transfer through the QPI to CPU-1 is
irregular and results in large amount of data being transferred causing the HM (History Module)
to crash. Hence, to avoid such scenarios, Honeywell recommends you to place the
LCNP4e/LCNP4e2 card in PCIe slot 2.
To replace/add the LCNP4M board
NOTE
If upgrading to an ELCN node, perform Steps 1 thru 8 to remove the LCNP4 board.
1. Perform all the tasks described in section
2. Disconnect the LCN MAU cable from LCNP4M board.
3. For nVIDIA Quadro NVS 300, remove the DMS59 to DVI dongle.
4. For Extio, remove the fiber optic cable connected to the PCIe card.
5. Remove the side cover of the workstation.
6. Remove the top cover of the workstation, perform the steps mentioned in section
enclosure
Accessing the components in the
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workstation.
Open the