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Intel® Desktop Board D865PCD
Connectors
 
Included on this page:
Back Panel Connectors
Internal I/O Connectors
External I/O Connectors
Front Panel Connector
Front Panel USB Connector

CAUTION
Only the following connectors have overcurrent protection: back panel USB, front panel USB, and PS/2*.

The other internal connectors are not overcurrent protected and should connect only to devices inside the computer's chassis, such as fans and internal peripherals. Do not use these connectors to power devices external to the computer's chassis. A fault in the load presented by the external devices could cause damage to the computer, the power cable, and the external devices themselves.
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.

D865PCD Back Panel Connectors
Item Description Color
A PS/2 mouse port Green
B PS/2 keyboard port Purple
C USB ports Black
D Serial port A Teal
E Parallel port Burgundy
F LAN Black
G USB ports Black
H Audio line in Light Blue
I Mic in Pink
J Audio line out Lime green
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.
Internal I/O Connectors
The internal I/O connectors are divided into the following functional groups:
Audio
Power and hardware control
Add-in boards and peripheral interfaces
Audio Connectors

The figure below shows the location of the audio connectors.

D865PCD Audio Connectors
Item Description
A ATAPI CD-ROM (black)
B Front panel audio
Power and Hardware Control Connectors

The figure below shows the location of the power and hardware control connectors.

D865PCD Power and Hardware Control Connectors
Item Description
A Rear chassis fan
B +12 V power connector (ATX12V)
C Processor fan
D Main power
E Front chassis fan
F Chassis intrusion
Add-in Board and Peripheral Interface Connectors
The figure below shows the location of the add-in board connector and peripheral connectors. Note the following considerations for the PCI bus connectors:
All of the PCI bus connectors are bus master capable
SMBus is routed to PCI bus connector 2. This enables PCI bus add-in boards with SMBus support to access sensor data on the Desktop 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

D865PCD Add-in Board and Peripheral Interface Connectors
Item Description
A PCI bus connector 3
B PCI bus connector 2
C PCI bus connector 1
D AGP connector
E Diskette drive
F Primary IDE (black)
G Secondary IDE (white)
Integrator's Notes
The AGP connector is keyed for universal 0.8 V AGP 3.0 cards or 1.5 AGP 2.0 cards only. Do not attempt to install a legacy 3.3 V AGP card. The AGP connector is not mechanically compatible with legacy 3.3 V AGP cards.
Not all PCI video cards can be used in PCI bus connectors 1 and 2 (the PCI bus connectors closest to the processor). To avoid clearance problems, install PCI video cards in PCI bus connector 3.
External I/O Connectors

The figure below shows the location of the external I/O connectors.

D865PCD External I/O Connector
Item Description Color
A Auxilary front panel power/sleep/message-waiting LED Black
B Front panel White
C Front panel USB Black
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. The figure below is a connection diagram for the front panel connector.
Pin Signal In/Out Description Pin Signal In/Out Description
Hard Drive Activity LED [Yellow]
Power LED [Green]
1 HD_PWR Out Hard disk LED pull-up (750 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 [Purple]
On/Off Switch [Red]
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

D865PCD Front Panel

Front Panel USB Connector
The figure below is a connection diagram for the front panel USB connector
Integrator's Notes
The +5 V DC power on the USB connector is fused.
Pins 1, 3, 5, and 7 comprise one USB port.
Pins 2, 4, 6, and 8 comprise one USB port.
Use only a front panel USB connector that conforms to the USB 2.0 specification for high-speed USB devices.

D865PCD Front Panel USB Connector

For more information about the front panel connector, see the Intels® Desktop Board D865PCD Technical Product Specification
Updated: Wednesday, May 12, 2004
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