Intel KD875PBZLKPAK10 Product Specification - Page 69

Front Panel Connector

Page 69 highlights

Technical Reference 2.8.3.1 Front Panel Connector This section describes the functions of the front panel connector. Table 33 lists the signal names of the front panel connector. Figure 21 is a connection diagram for the front panel connector. Table 33. Front Panel Connector Pin Signal In/Out Description Pin Hard Drive Activity LED 1 HD_PWR Out Hard disk LED pull-up 2 (750 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 Power Switch    Dual-colored Power LED  Single-colored Power LED 9 8 7 6 5 4 3 2 1 +5 V DC Reset Switch  Hard Drive  Activity LED OM15966 Figure 21. Connection Diagram for Front Panel Connector 2.8.3.1.1 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: • A Serial ATA hard drive connected to an onboard Serial ATA connector • A Parallel ATA IDE hard drive connected to an onboard Parallel ATA IDE connector • An 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 31 69

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132

Technical Reference
69
2.8.3.1
Front Panel Connector
This section describes the functions of the front panel connector.
Table 33 lists the signal names
of the front panel connector.
Figure 21 is a connection diagram for the front panel connector.
Table 33.
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
(750
) 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
OM15966
8
6
4
2
7
5
3
1
Reset
Switch
+5 V DC
N/C
Power
Switch
9
Hard Drive
Activity LED
±
²
Single-colored
Power LED
±
²
²
±
Dual-colored
Power LED
Figure 21.
Connection Diagram for Front Panel Connector
2.8.3.1.1
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:
A Serial ATA hard drive connected to an onboard Serial ATA connector
A Parallel ATA IDE hard drive connected to an onboard Parallel ATA IDE connector
An 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 31