Caution |
Only the back panel, the front panel audio, and the front panel USB connectors of the Intel® Desktop Board D845WN have over-current protection. The internal connectors for Intel Desktop Board D845WN are not over-current protected. They should connect only to devices inside the chassis of the computer, such as fans and internal peripherals. Do not use these connectors to power devices external to the computer chassis. A fault in the load presented by the external devices could cause damage to the computer, the interconnecting cable, and the external devices. | |
This section describes the board connectors. The connectors can be divided into the following groups:
Back panel I/O connectors
The figure below shows the location of the back panel connectors. The back panel connectors are color-coded in compliance with PC 99 recommendations. The figure legend below lists the colors used.
![[D845WN Back Panel Connectors]](/support/motherboards/desktop/d845wn/img/wn_bpan.gif)
| Item |
Description |
Color |
| A |
PS/2 mouse port |
Green |
| B |
PS/2 keyboard port |
Purple |
| C |
USB port (Optional) |
Black |
| D |
USB port (Optional) |
Black |
| E |
Serial port A |
Teal |
| F |
Parallel port |
Burgundy |
| G |
LAN (Optional) |
Black |
| H |
USB Port |
Black |
| I |
USB Port |
Black |
| J |
Mic in (optional) |
Pink |
| K |
Audio line out (Optional) |
Lime green |
| L |
Audio line in (Optional) |
Light blue | |
| Note |
The back panel audio line out connector is designed to power headphones or amplified speakers only. Poor audio quality occurs if passive (non-amplified) speakers are connected to this output. | |
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Internal I/O connectors
The internal I/O connectors are divided into the following functional groups:
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Audio
The figure below shows the location of the audio connectors.
![[D845WN Audio Connectors]](/support/motherboards/desktop/d845wn/img/wn_audio.gif)
| Item |
Description |
Color |
| A |
Telephony (optional) |
White |
| B |
Auxiliary line in, ATAPI style (optional) |
White |
| C |
ATAPI CD-ROM (optional) |
Black | |
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Power and hardware control connectors
The figure below shows the location of the power and hardware control connectors.
![[D845WN Power and Hardware Control Connectors]](/support/motherboards/desktop/d845wn/img/wn_hdwr.gif)
| Item |
Description |
| A |
ATX12V power connector |
| B |
Rear chassis fan |
| C |
Processor fan |
| D |
Main power |
| E |
Chassis intrusion |
| F |
Front chassis fan (optional) | |
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Add-in board and peripheral interface connectors
The figure below shows the location of the add-in board connector and peripheral connectors. Notice the following considerations for the PCI bus connectors:
- All of the PCI bus connectors are Bus master capable.
- PCI Bus connector 1 has SMBus signals routed to it. This enables PCI Bus add-in boards with SMBus support to access sensor data on the board. The specific SMBus signals are as follows:
- The SMBus clock line is connected to pin A40
- The SMBus data line is connected to pin A41
![[D845WN Add-in Board and Peripheral Interface Connectors]](/support/motherboards/desktop/d845wn/img/wn_addin.gif)
| Item |
Description |
| A |
Communication and networking riser (CNR) |
| B |
PCI bus connector 6 |
| C |
PCI bus connector 5 |
| D |
PCI bus connector 4 |
| E |
PCI bus connector 3 |
| F |
PCI bus connector 2 |
| G |
PCI bus connector 1 |
| H |
AGP connector |
| I |
Diskette drive |
| J |
Primary IDE |
| K |
Secondary IDE |
| L |
SCSI LED (Optional) | |
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External I/O connectors
The figure below shows the location of the external I/O connectors.
![[D845WN External I/O Connector]](/support/motherboards/desktop/d845wn/img/wn_extrnl.gif)
| Item |
Description |
| A |
Front panel audio |
| B |
Serial port B (Optional) |
| C |
Auxiliary front panel power/sleep/message-waiting LED |
| D |
Front panel |
| E |
Front panel USB | |
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Front panel connector
This section describes the functions of the front panel connector. The table below lists the signal names of the front panel connector.
![[D845WN Front Panel Connector]](/support/motherboards/desktop/d845wn/img/wn_fpan.gif)
Front panel connector (J9D2)
| 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 ohm) 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 |
| Infrared Port
|
Miscellaneous
|
| 9 |
+5 V |
Out |
Power |
10 |
N/C |
|
|
| 11 |
IRRX |
In |
IrDA serial input |
12 |
Ground |
|
Ground |
| 13 |
Ground |
|
Ground |
14 |
(pin removed) |
|
Not connected |
| 15 |
IRTX |
Out |
IrDA serial output |
16 |
+5 V |
Out |
Power | |
Related Topic:
Intel® Desktop Board D845WN Technical Product Specification
This applies to:
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