Pcie Slot Characteristics - Sun Oracle Sun Server X4-2 Service Manual

"Install the Internal HBA Card in PCIe Slot 4" on page 90
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Related Information
"Servicing PCIe Risers (CRU)" on page 74
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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
Back Panel View" on page
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.
Slot Supported PCIe Card
Number Types
1 Low-profile cards
only
2 Low-profile cards
only
3 and 4 Low-profile cards
only
Related Information
"Server Back Panel View" on page 5
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5.
Supported PCIe
Specifications
PCIe 1.0, PCIe 2.0, PCIe 3.0
PCIe 1.0, PCIe 2.0, PCIe 3.0
PCIe 1.0, PCIe 2.0, PCIe 3.0
Servicing CRUs That Require Server Power-Off
"Server
Slot Connector Width/PCI
Express Lanes
x16 mechanical/x16 electrical
x16 mechanical/x8 electrical
x8 mechanical/x8 electrical
85