Datasheet

Intel
®
Server Board S5000PAL/S5000XAL TPS Functional Architecture
Revision 2.0
Intel order number: D31979-011
23
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 NA
2U – 2 add-in card slots x4 x4
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 NA NA
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 Up to 133MHz Up to 133MHz