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Functional Architecture Intel
®
Server Board S5000PAL / S5000XAL TPS
Revision 1.4
Intel order number: D31979-007
34
This section describes the function of most of the listed features as they pertain to this server board. For
more detail information, see the Intel
®
S5000 Series Chipsets Server Board Family Datasheet or the
Intel
®
Enterprise South Bridge-2 External Design Specification (Yellow Cover)
3.2.1 PCI Sub-system
The primary I/O buses for the server board are PCI, PCI Express*, and PCI-X*, with six independent PCI
bus segments. The PCI buses comply with the PCI Local Bus Specification, Revision 2.3. The table
below lists the characteristics of the PCI bus segments. Details about each bus segment follow the table.
Table 5. PCI Bus Segment Characteristics
PCI Bus Segment Voltage Width Speed Type On-board Device Support
PCI32
ESB-2
3.3V 32 bit 33MHz PCI Used internally for video controller
PXA
ESB-2
3.3V/5.0V 64 bit 133MHz PCI-X*
Full height riser slot, up to three slots on riser
card
PE1
ESB-2 PCIe* Port2
3.3V x4 10Gb/S PCIe* Used for Intel chassis for mid-plane IOP
PE2
ESB-2 PCIe Port3
3.3V x4 10Gb/S PCIe
Mezzanine connector for Intel
®
I/O Expansion
Module
PE4, PE5
BNB PCIe Ports
4,5
3.3V x8 20Gb/S PCIe
Low profile riser slot, up to two x4 slots on 2U
riser, or one x8 slot on 1U riser.
PE6, PE7
BNB PCIe Ports
6,7
3.3V x8 20Gb/S PCIe
Full height riser slot, up to two x4 slots on
riser or one x8
3.2.1.1 PCI32: 32-bit, 33-MHz PCI Bus Segment
All 32-bit, 33-MHz PCI I/O is directed through the ESB-2 ICH6. The 32-bit, 33-MHz PCI segment created
by the ESB-2-ICH6 is known as the PCI32 segment. The PCI32 segment supports the following
embedded devices:
• 2D Graphics Accelerator: ATI* ES1000 Video Controller
3.2.1.2 PXA: 64-bit, 133MHz PCI-X* Bus Segment
One 64-bit PCI-X* bus segment is directed through the ESB-2 ICH6. This PCI-X segment, PXA, can
support up to three add-in cards on a riser card plugged into the full height riser card slot (J4F1).
3.2.1.3 PE1: One x4 PCI Express* Bus Segment
One x4 PCI Express* bus segment is directed through the ESB-2. This PCI Express segment, PE1,
supports the optional Active SAS Midplane IOP as used in supported Intel chassis for this server board.
3.2.1.4 PE2: One x4 PCI Express* Bus Segment
One x4 PCI Express* bus segment is directed through the ESB-2. This PCI Express segment, PE2,
supports one x4 PCI Express segment to the proprietary Intel
®
I/O Expansion Module mezzanine
connector (J3B1).