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Intel® Desktop Board D845GVSR
Connectors
 
Back Panel Connectors
Internal I/O Connectors
External I/O Connectors
Front Panel Connector
Front Panel USB Connector
Connectors

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.

This section describes the connectors and are divided into these groups:

Back Panel I/O Connectors
Internal I/O Connectors
External I/O Connectors
Note:
When installing the D845GEBV2 board in a microATX chassis, make sure that peripheral devices are installed at least 1.5 inches above the main power connector, the diskette drive connector, the IDE connector, and the DIMM sockets.
Back Panel 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.

[D845GVSR 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 VGA Dark blue
G LAN (Optional) Black
H USB ports Black
I Audio line in Light blue
J Mic in Pink
K Audio line out Lime green

Integrator's 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 Board and Peripheral Interface Connectors
Audio, Power, and Hardware Control

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

[D845GVSR Audio Connectors]

Item Description
A Front panel audio
B Auxiliary line in, ATAPI style (gray)
C ATAPI CD-ROM (black)
D +12 V power connector (ATX12V)
E Rear chassis fan
F Processor fan
G Main power
H Front chassis fan
I Chassis intrusion
Add-in Board and Peripheral Interface Connectors
The figure below shows the location of the add-in board connector and peripheral connectors for the Desktop Board D845GVSR. Note the following considerations for the PCI bus connectors:
All of the PCI bus connectors are bus master capable.
SMBus signals are 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

[D845GVSR 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 Diskette drive
E Primary IDE
F Secondary IDE
External I/O Connectors
The figure below shows the location of the external I/O connectors.

[D845GVSR External I/O Connector]

Item Description
A Serial port B (optional)
B Auxilary front panel power/sleep/message-waiting LED
C Front panel
D Front panel USB
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.

[D845GVSR Front Panel Connector]

Hard Drive Ativity LED
Pin Signal In/Out Description
1 HD_PWR Out Hard disk LED pull-up (750 ohm) to +5 V
3 HAD# Out Hard disk active LED
Power LED
Pin Signal In/Out Description
2 HDR_BLNK_GRN Out Front panel green LED
4 HDR_BLNK_YEL Out Front panel yellow LED
Reset Switch
Pin Signal In/Out Description
5 Ground   Ground
7 FP_RESET# In Reset switch
9 +5 V Out Power
On/Off Switch
Pin Signal In/Out Description
6 FPBUT_IN In Power switch
8 Ground   Ground
10 No connect   Not connected
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.

[D845GVSR Front Panel USB Connector]

Note: For more information about the front panel connector, see the Product Supplement Document for the Intel® Desktop Board D845GVSR

Updated: Friday, August 1, 2003
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