Intel D845PEBT2 Product Specification - Page 70

Front Panel Connector

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Intel Desktop Board D845PEBT2 Technical Product Specification 2.8.3.1 Front Panel Connector This section describes the functions of the front panel connector. Table 48 lists the signal names of the front panel connector. Table 48. Front Panel Connector Pin Signal In/Out Description Pin Hard Drive Activity LED 1 HD_PWR Out Hard disk LED pull-up 2 (330 Ω) to +5 V 3 HAD# Out Hard disk active LED 4 Reset Switch 5 Ground Ground 6 7 FP_RESET# In Reset switch 8 Power 9 +5 V Power 10 Signal In/Out Description Power LED HDR_BLNK_ Out GRN Front panel green LED HDR_BLNK_ Out YEL Front panel yellow LED On/Off Switch FPBUT_IN In Power switch Ground Ground Not Connected N/C Not connected N/C 9 +5 V DC 87 Power Reset Switch Switch 65 43 Power Hard Drive LED Activity LED 2 1 OM15075 Figure 16. Front Panel Connector Pins 2.8.3.1.1 SCSI Hard Drive Activity LED Connector Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from or written to a hard drive. Proper LED function requires one of the following: • An SATA hard drive connected to an onboard SATA connector • An IDE hard drive connected to an onboard IDE connector • A add-in hard drive connected to the SCSI hard drive activity LED connector For information about The SCSI hard drive activity LED connector Refer to Section 1.7.3.2, page 26 70

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Intel Desktop Board D845PEBT2 Technical Product Specification
70
2.8.3.1
Front Panel Connector
This section describes the functions of the front panel connector.
Table 48 lists the signal names
of the front panel connector.
Table 48.
Front Panel Connector
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
(330
Ω
) to +5 V
2
HDR_BLNK_
GRN
Out
Front panel green
LED
3
HAD#
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
OM15075
3
5
7
9
2
4
6
8
1
Hard Drive
Activity LED
Reset
Switch
+5 V DC
N/C
Power
Switch
Power
LED
Figure 16.
Front Panel Connector Pins
2.8.3.1.1
SCSI Hard Drive Activity LED Connector
Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from
or written to a hard drive.
Proper LED function requires one of the following:
•
An SATA hard drive connected to an onboard SATA connector
•
An IDE hard drive connected to an onboard IDE connector
•
A add-in hard drive connected to the SCSI hard drive activity LED connector
For information about
Refer to
The SCSI hard drive activity LED connector
Section 1.7.3.2, page 26