Intel D925XECV2 Product Specification - Page 76
Auxiliary Front Panel Power/Sleep LED Connector, 8.2.4, Front Panel Connector
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Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification Note the following considerations for the PCI Conventional bus connectors (for both Desktop Boards): • 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. 2.8.2.3 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 32. 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 2.8.2.4 Front Panel Connector This section describes the functions of the front panel connector. Table 33 lists the signal names of the front panel connector. Figure 23 is a connection diagram for the front panel connector. Table 33. Front Panel Connector Pin Signal In/Out Description Pin Hard Drive Activity LED [Yellow] 1 HD_PWR Out Hard disk LED pull-up 2 (750 Ω) to +5 V 3 HAD# Out Hard disk active LED 4 Reset Switch [Purple] 5 Ground Ground 6 7 FP_RESET# In Reset switch 8 Power 9 +5 V Power 10 Signal In/Out Description Power LED [Green] HDR_BLNK_ Out GRN Front panel green LED HDR_BLNK_ Out YEL Front panel yellow LED On/Off Switch [Red] FPBUT_IN In Power switch Ground Ground Not Connected N/C Not connected 76