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Intel Desktop Board DH55HC Product Guide
50
Front Panel Header
Figure 23, H shows the location of the front panel header. Table 12 shows the pin
assignments and signal names for the front panel header.
Table 12. Front Panel Header Signal Names
Pin Description In/Out
Pin Description In/Out
Hard Drive Activity LED Power LED
1 Hard disk LED pull-up to +5 V
Out 2 Front panel LED+ Out
3 Hard disk active LED Out 4 Front panel LED- Out
Reset Switch On/Off Switch
5 Ground 6 Power switch In
7 Reset switch In 8 Ground
Power Not Connected
9 Power Out 10 No pin
NOTE
When connecting individual wires from your chassis front panel to the front panel
header, be sure to observe the connection polarity. Positive wires are usually
solid color and negative wires are usually white or striped.
Front Panel USB 2.0 Headers
Figure 23, I shows the location of the standard front panel USB 2.0 header and
Table 13 shows its pin assignments and signal names.
Table 1
3. USB 2.0 Header Signal Names
Pin Signal Name Pin Signal Name
1 Power (+5 V) 2 Power (+5 V)
3 D- 4 D-
5 D+ 6 D+
7 Ground 8 Ground
9 Key 10 No Connection