Intel Desktop Board D975XBX Product Guide
42
Front Panel Header
Figure 22, E on page 40 shows the location of the multi-colored front panel header. Table 8 shows
the pin assignments for the front panel header.
Table 8. Front Panel Header Signal Names
Pin Signal In/Out Description Pin Signal In/Out Description
Hard Drive Activity LED (Yellow) Power LED (Green)
1 HD_PWR Out Hard disk LED pull-
up (330 Ω) to +5 V
2 HDR_BLNK_GRN Out Front panel green
LED
3 HDA# Out Hard disk active LED 4 HDR_BLNK_YEL Out Front panel yellow
LED
Reset Switch (Purple) On/Off Switch (Red)
5 Ground Ground 6 SWITCH_ON# In Power switch
7 FP_RESET# In Reset switch 8 Ground Ground
Power Not Connected
9 +5 V Power 10 No pin
Alternate Front Panel Power LED Header
Figure 22, D on page 40 shows the location of the alternate front panel power LED header. If you
have a three-pin power LED cable, connect it to this header.
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