Intel BOXD955XCSLKR Product Specification - Page 60

Add-in Card Connectors, 7.2.3, Auxiliary Front Panel Power/Sleep LED Connector

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Intel Desktop Board D955XCS Technical Product Specification 2.7.2.2 Add-in Card Connectors The board has the following add-in card connectors: • PCI Express x16; one connector supporting simultaneous transfers up to 8 GBytes/sec • Secondary PCI Express x16/x4 bus; one connector supporting simultaneous transfers up to 2 GBytes/sec • PCI Express x1; one connector supporting simultaneous transfers up to 500 MBytes/sec • PCI Conventional (rev 2.3 compliant) bus; four PCI Conventional bus add-in card connectors. The SMBus is routed to PCI Conventional bus connector 2 only (ATX expansion slot 6). PCI Conventional bus add-in cards with SMBus support can access sensor data and other information residing on the Desktop Board. Note the following considerations for the PCI Conventional bus connectors: • All of the PCI Conventional bus connectors are bus master capable. • SMBus signals are routed to PCI Conventional bus connector 2. This enables PCI Conventional bus add-in boards with SMBus support to access sensor data on the Desktop Board. The specific SMBus signals are as follows: ⎯ The SMBus clock line is connected to pin A40. ⎯ The SMBus data line is connected to pin A41. 2.7.2.3 Auxiliary Front Panel Power/Sleep LED Connector Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector. Table 29. Auxiliary Front Panel Power/Sleep LED Connector Pin Signal Name 1 HDR_BLNK_GRN 2 Not connected 3 HDR_BLNK_YEL In/Out Out Out Description Front panel green LED Front panel yellow LED 60

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Intel Desktop Board D955XCS Technical Product Specification
60
2.7.2.2
Add-in Card Connectors
The board has the following add-in card connectors:
•
PCI Express x16; one connector supporting simultaneous transfers up to 8 GBytes/sec
•
Secondary PCI Express x16/x4 bus; one connector supporting simultaneous transfers up to
2 GBytes/sec
•
PCI Express x1; one connector supporting simultaneous transfers up to 500 MBytes/sec
•
PCI Conventional (rev 2.3 compliant) bus; four PCI Conventional bus add-in card connectors.
The SMBus is routed to PCI Conventional bus connector 2 only (ATX expansion slot 6)
.
PCI
Conventional bus add-in cards with SMBus support can access sensor data and other
information residing on the Desktop Board.
Note the following considerations for the PCI Conventional bus connectors:
•
All of the PCI Conventional bus connectors are bus master capable.
•
SMBus signals are routed to PCI Conventional bus connector 2.
This enables PCI
Conventional bus add-in boards with SMBus support to access sensor data on the Desktop
Board.
The specific SMBus signals are as follows:
⎯
The SMBus clock line is connected to pin A40.
⎯
The SMBus data line is connected to pin A41.
2.7.2.3
Auxiliary Front Panel Power/Sleep LED Connector
Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector.
Table 29.
Auxiliary Front Panel Power/Sleep LED Connector
Pin
Signal Name
In/Out
Description
1
HDR_BLNK_GRN
Out
Front panel green LED
2
Not connected
3
HDR_BLNK_YEL
Out
Front panel yellow LED