S5000PAL datasheet(33/112 Pages) INTEL

33 / 112 page

Functional Architecture

Intel

® Server Board S5000PAL / S5000XAL TPS

Revision 1.7

Intel order number: D31979-010

3.2.1.5

PE4, PE5: Two x4 PCI Express* Bus Segments

Two x4 PCI Express* bus segments are directed through the MCH. These PCI Express segments, PE4

and PE5, support one x8 or two x4 PCI Express segments to the low profile riser slot (J5B1).

3.2.1.6

PE6, PE7: Two x4 PCI Express* Bus Segments

Two x4 PCI Express* bus segments are directed through the MCH. These PCI Express segments, PE6

and PE7, support one x8 or two x4 PCI Express segments to the full height riser slot (J4F1).

3.2.1.7

PCI Riser Slots

The server board has two riser slots capable of supporting riser cards for both 1U and 2U system

configurations. Because of board placement resulting in different pin orientations, and expanded

technology support associated with the full-height riser, the riser slots are not the same and require

different riser cards.

The low profile riser slot (J5B1) utilizes a 98-pin connector. It is capable of supporting one x8 (1U) or two

x4 (2U) low profile PCI Express* add-in cards. The x8 PCI Express* bus can support bus speeds of up to

20 Gb/S. The following table provides the supported bus throughput for the given riser card used and the

number of add-in cards installed.

Low Profile Riser

1 add-in card populated

2 add-in cards populated

1U – 1 add-in card slot

x8 or x4

2U – 2 add-in card slots

Note:

There are no population rules for installing a single low profile add-in card in the 2U LP riser card; a

single add in card can be installed in either PCI Express* slot. While each slot can accommodate a x8

card, each slot will only support x4 bus speeds.

The full height riser slot (J4F1) implements Intel

® Adaptive Slot Technology. This 280-pin connector is

capable of supporting riser cards that meet either the PCI-X* or PCI Express* technology specifications.

The following tables show the maximum bus speed supported with different add-in card populations for

each supported riser card.

Full Height PCI-X*

(Passive) Riser

1 add-in card populated

2 add-in cards populated

3 add-in cards populated

1U – 1 add-in card slot

Up to 133MHz

2U – 3 add-in card slots

Up to 100MHz in top PCI

slot

Up to 100MHz using top

and middle slots

66MHz

Note:

For the 2U PCI-X* (passive) riser card, add-in cards should be installed starting with the top slot

first, followed by the middle, and then the bottom. Any add-in card populated in the bottom PCI slot will

cause the bus to operate at 66MHz.

Full Height PCI-X*

(Active) Riser

1 add-in card populated

2 add-in cards populated

3 add-in cards populated

2U – 3 add-in card slots

Up to 133MHz

Note:

Each PCI slot on the 2U PCI-X* (active) riser card operates on an independent PCI bus. Therefore,

using an add-in card that operates below 133MHz will not affect the bus speed of the other PCI slots.

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