Intel D945GCCR Product Specification - Page 54

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

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Intel Desktop Board D945GCCR Technical Product Specification 2.7.2.2 Add-in Card Connectors The board has the following add-in card connectors: • One PCI Express x16 connector supporting simultaneous transfer speeds up to 4 GBytes/sec of peak bandwidth per direction and up to 8 GBytes/sec concurrent bandwidth. • One PCI Express x1 connector. The x1 interface supports simultaneous transfer speeds up to 250 Mbytes/sec of peak bandwidth per direction and up to 500 MBytes/sec concurrent bandwidth. • PCI Conventional (rev 2.3 compliant) bus: two PCI Conventional bus add-in card connectors. The SMBus is routed to all PCI Conventional bus connectors. PCI Conventional bus add-in cards with SMBus support can access sensor data and other information residing on the 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 all PCI Conventional bus connectors. This enables PCI Conventional bus add-in boards with SMBus support to access sensor data on the boards. 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. NOTE The PCI Express x16 connector is configured to support only a PCI Express x1 link when the Intel GMA950 graphics controller is enabled. 2.7.2.3 Auxiliary Front Panel Power/Sleep LED Header Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel header. Table 23. Auxiliary Front Panel Power/Sleep LED Header 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 54

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Intel Desktop Board D945GCCR Technical Product Specification
54
2.7.2.2
Add-in Card Connectors
The board has the following add-in card connectors:
•
One PCI Express x16 connector supporting simultaneous transfer speeds up to
4 GBytes/sec of peak bandwidth per direction and up to 8 GBytes/sec concurrent
bandwidth.
•
One PCI Express x1 connector.
The x1 interface supports simultaneous transfer
speeds up to 250 Mbytes/sec of peak bandwidth per direction and up to
500 MBytes/sec concurrent bandwidth.
•
PCI Conventional (rev 2.3 compliant) bus: two PCI Conventional bus add-in card
connectors.
The SMBus is routed to all PCI Conventional bus connectors
.
PCI
Conventional bus add-in cards with SMBus support can access sensor data and
other information residing on the 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 all PCI Conventional bus connectors.
This enables PCI
Conventional bus add-in boards with SMBus support to access sensor data on the
boards.
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.
±
NOTE
The PCI Express x16 connector is configured to support only a PCI Express x1 link
when the Intel GMA950 graphics controller is enabled.
2.7.2.3
Auxiliary Front Panel Power/Sleep LED Header
Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel
header.
Table 23. Auxiliary Front Panel Power/Sleep LED Header
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