Intel D955XBK English Product Guide - Page 43
USB 2.0 Headers, Front Panel Header, Alternate Power LED Header
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Installing and Replacing Desktop Board Components USB 2.0 Headers See Figure 22, A for the location of the black USB 2.0 headers. Table 8 shows the pin assignments for the headers. Table 8. USB 2.0 Header Signal Names USB Port A Pin Signal Name 1 Power 3 D- 5 D+ 7 Ground 9 Key Note: USB ports may be assigned as needed. USB Port B Pin Signal Name 2 Power 4 D- 6 D+ 8 Ground 10 No connect Front Panel Header Figure 22, C on page 41 shows the location of the multi-colored front panel header. Table 9 shows the pin assignments for the front panel header. Table 9. 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- 2 HDR_BLNK_GRN Out Front panel green up (330 Ω) to +5 V 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 7 FP_RESET# In Ground Reset switch 6 SWITCH_ON# In 8 Ground Power switch Ground 9 N/C Not connected 10 No pin Alternate Power LED Header Figure 22, B on page 41 shows the location of the alternate power LED header. If you have a threepin power LED cable, connect it to this header. 43