Sun Oracle Sun Server X4-2, Service Manual

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Servicing CRUs That Require Server Power-Off 85
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“Install the Internal HBA Card in PCIe Slot 4” on page 90
Related Information
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“Servicing PCIe Risers (CRU)” on page 74
PCIe Slot Characteristics
There are three external and one internal PCIe slots available in the Sun Server X4-2.
The external slots support optional, standard PCIe cards and are numbered 1, 2, and
3 from left to right when you view the server from the rear. The internal slot, which
installs on the riser in PCIe slots 3 and 4, supports a required internal SAS controller
HBA card. For a view of the rear panel that shows PCIe slot numbering, see
“Server
Back Panel View” on page 5 .
Note – PCIe slot 1 is nonfunctional in single-processor systems.
Note – All of the PCIe slots comply with the PCI Express 3.0 specification and can
accommodate 25 watt PCIe cards.
The following table lists the characteristics and requirements of the PCIe slots.
Related Information
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“Server Back Panel View” on page 5
Slot
Number Supported PCIe Card
Types Supported PCIe
Specifications Slot Connector Width/PCI
Express Lanes
1 Low-profile cards
only PCIe 1.0, PCIe 2.0, PCIe 3.0 x16 mechanical/x16 electrical
2 Low-profile cards
only PCIe 1.0, PCIe 2.0, PCIe 3.0 x16 mechanical/x8 electrical
3 and 4 Low-profile cards
only PCIe 1.0, PCIe 2.0, PCIe 3.0 x8 mechanical/x8 electrical