Datasheet
Table Of Contents
- Intel® Desktop Board D2550DC2 Technical Product Specification
- Revision History
- Preface
- Contents
- 1 Product Description
- 2 Technical Reference
- 3 Overview of BIOS Features
- 4 Board Status and Error Messages
- 5 Regulatory Compliance and Battery Disposal Information

Technical Reference
47
2.2.2.4 Front Panel Header
This section describes the functions of the front panel header. Table 19 lists the signal
names of the front panel header. Figure 12 is a connection diagram for the front panel
header.
Table 19. Front Panel Header
Pin
Signal
In/
Out
Description
Pin
Signal
In/
Out
Description
Hard Drive Activity LED Power LED
1 HD_PWR Out Hard disk LED
pull-up 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 On/Off Switch
5 Ground Ground 6 FPBUT_IN In Power switch
7 FP_RESET# In Reset switch 8 Ground Ground
Power Not Connected
9 +5 V Power 10 N/C Not connected
Figure 12. Connection Diagram for Front Panel Header