Product guide
Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide 
46     
Connecting USB 2.0 Headers 
Before connecting the USB 2.0 headers, observe the precautions in "Before You Begin" on 
page 27. See Figure 22, D on page 44 for the location of the black USB 2.0 headers. 
Table 10 shows the pin assignments for the USB 2.0 headers. 
Table 10.  USB 2.0 Header Signal Names 
USB Port A  USB Port B 
Pin  Signal name  Pin  Signal name 
1 Power  2 Power 
3 D-  4 D- 
5 D+  6 D+ 
7 Ground  8 Ground 
9 Key  10 No connect 
Note: USB ports may be assigned as needed. 
Connecting the Front Panel Header 
Before connecting the front panel header, observe the precautions in "Before You Begin" on 
page 27. See Figure 22, C on page 44 for the location of the multi-colored front panel header. 
Table 11 shows the pin assignments for the front panel header. 
Table 11.  Front Panel Header Signal Names 
Pin Signal  In/Out Description  Pin Signal  In/Out Description 
Hard Drive Activity LED (Orange)  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 
9  N/C    Not connected  10  No pin    No pin 










