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Central electronics complex (CEC) backplane
The PCI riser card is a FRU and should be replaced only by trained experienced service personnel.
Before performing the following procedure, read the "Safety notices" on page xv.
Note: To perform this procedure, you must remove and install the PCI riser card. Removing or installing
the PCI riser card from its docking connectors requires a considerable amount of force. If you are
servicing a NAS Gateway 500, it is strongly recommended that the system drawer be removed from
the rack.
CEC backplane removal
Attention:
Before you remove or disconnect any components, record their location. Before removing the
CEC backplane from the system for servicing or replacement, record the settings of any jumpers located
on the CEC backplane.
To remove the CEC backplane (system board), do the following:
1. Open the front and back rack doors.
2. Shut down the system as described in "Stopping the system" on page 310.
3. Disconnect the power source from the system.
Note: This system is equipped with a second power supply. Before continuing with this procedure,
ensure that the power source to the system has been completely disconnected.
4. Label and disconnect all other cables located at the back of the system unit.
5. Place the system into the service position as described in "Placing the NAS Gateway 500 into the
service position" on page 312.
6. Remove the front bezel as described in "Front bezel removal" on page 315.
7. Remove the service access cover as described in "Service access cover removal" on page 314.
8. Because each adapter must be returned to its original slot, you must record the slot number and
location of each adapter being removed.
9. Before handling any card, board, or DIMM, be sure to use your electrostatic discharge strap to
minimize static-electric discharge. Refer to "Handling static-sensitive devices" on page 310.
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NAS Gateway 500 Service Guide
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