Oracle Sun Server X4-4, Service Manual

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Servicing the DVD Drive (CRU)
158 Sun Server X4-4 Service Manual • October 2015
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A four-CPU configuration has CPUs installed in all four processor sockets, which gives the
server access to all 11 PCIe slots.
In both configurations, PCIe slot 2 is reserved for the storage drive HBA, which leaves five
available slots for a two-CPU configuration and 10 available slots for a four-CPU configuration.
As a general rule, when installing a PCIe card in the server, use the following population order:
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For a two-CPU configuration, the slot population order is: slot 6, 4, 5, 3, 1.
For example: When installing a PCIe card in a two-CPU configured server, first, determine
if slot 6 is available. If it is available, install the card in the slot. If it is not available,
determine if slot 4 is available. If slot 4 is not available, determine if slot 5 is available.
Continue this process with slots 3, and 1 until you find an available slot.
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For a four-CPU configuration, the slot population order is: slot 11, 8, 6, 4, 10, 7, 5, 3, 9, 1
For example, when installing a PCIe card in a four-CPU configured server, first determine
if slot 11 is available. If it is available, install the card in the slot. If it is not available,
determine if slot 8 is available. If slot 8 is not available, determine if slot 6 is available.
Continue this process with slots 4, 10, 7, 5, 3, 9, and 1 until you find an available slot.
PCIe Cards With Boot Devices
If the server has several PCIe cards installed that provide boot devices, disable the Option ROM
on the PCIe slots not used for booting. By default, the BIOS enables Option ROMs for PCIe
slot 2 and the four on-board 10 Gigabit Ethernet ports.
Servicing the DVD Drive (CRU)
When servicing the components in this section, unplug the AC power cords.