chiliGREEN D915PGNL - Manual (Page 73)

Technical Reference
Table 31. ATX12V Power Connector
Pin Signal Name Pin Signal Name
1 Ground 2 Ground
3 +12 V 4 +12 V
Table 32. Alternate Power Connector
Pin Signal Name
1 +12 V
2 Ground
3 Ground
4 +5 V
2.8.2.3 Add-in Card Connectors
The board has the following add-in card connectors:
• PCI Express x16: one connector supporting simultaneous transfer speeds up to 8 GBytes/sec.
• PCI Express x1: the D915PGN board has two PCI Express x1 connectors; the D915PSY board
has one PCI Express x1 connector. The x1 interfaces support simultaneous transfer speeds up
to 500 MBytes/sec.
• PCI Conventional (rev 2.2 compliant) bus: the D915PGN board has four PCI Conventional bus
add-in card connectors; the D915PSY board has two PCI Conventional 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 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.
2.8.2.4 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 33. 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
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