
Technical Reference
Dual-Core Intel® Xeon® Processor LV and Intel
®
3100 Chipset
User’s Manual
January 2007
42
Order Number:315879-002
3.6.2.2
Add-in Card Connectors
The CRB has the following add-in card connectors:
• 2 x4 PCI Express* slots which are Port A
• 1 x4 PCI Express* slot which is Port B
• 1 32-bit PCI slot
3.6.2.3
Front Panel Connector
This section describes the functions of the front panel connector.
Table 16
lists the
signal names of the front panel connector.
Figure 33
is a connection diagram for the
front panel connector.
Table 14.
SATA Power Connector
Pin
Signal Name
Pin
Signal Name
1
GND
3
12 V
2
GND
4
12 V
Table 15.
Auxiliary Front Panel Power and Reset Connector Pin
Pin
Signal Name
In/Out
Description
1
HDR_BLNK_GRN
Out
Front panel green LED
2 Not
connected
3
HDR_BLNK_YEL
Out
Front panel yellow LED
Figure 33.
Front Panel Connector
Table 16.
Front Panel Connector
Pin
Signal Name
In/Output
Description
1
HD_ACT_LED_P
OUT
Power side of hard drive activity LED
2
HD_ACT_LED_N
OUT
Ground side of hard drive activating LED
3
FRNTPNL_PWR_LED POWER
OUT
Power side of power on LED
4
FRNTPNL_PWR_LED Ground
OUT
Ground
5
Power Button pin (1)
Power Button Pin
6
FP_PWR_BTN_N (2)
Power Button Pin 2
B5987-01
2
4
6
8
1
3
5
7
9