Installing and Replacing Desktop Board Components

Connecting to the Serial Header

See Figure 22, D for the location of the green Serial header. Table 8 shows the pin assignments for the header.

Table 8. Serial Signal Header Names

Pin

Signal Name

 

 

1

DCD

 

 

3

TXD#

 

 

5

Ground

7RTS

9RI

Pin

Signal Name

 

 

2

RXD#

 

 

4

DTR

 

 

6

DSR

 

 

8

CTS

 

 

10

No Connection

 

 

Connecting to the Alternate Front Panel Power LED Header

Figure 22, E on page 42 shows the location of the alternate front panel power LED header. Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel header. If your chassis has a three-pin power LED cable, connect it to this header.

Table 9 shows the pin assignments for the front panel header.

Table 9. Alternate Front Panel Power LED Connector

Pin

Description

In/Out

 

 

 

1

Front panel green LED

Out

 

 

 

2

No pin

 

 

 

 

3

Front panel yellow LED

Out

 

 

 

Connecting to the Front Panel Header

Before connecting to the front panel header, observe the precautions in "Before You Begin" on page 25. See Figure 22, F on page 42 for the location of the multi-colored front panel header.

Table 10 shows the pin assignments for the front panel header.

Table 10. Front Panel Header

Pin

Description

In/Out

Pin

Description

In/Out

 

 

 

 

 

 

 

 

 

Hard Drive Activity LED

 

 

Power LED

 

 

 

 

 

 

 

 

 

1

Hard disk LED pull-up to +5 V

Out

2

Front panel green LED

Out

 

 

 

 

 

 

 

 

3

Hard disk active LED

Out

4

Front panel yellow LED

Out

 

 

 

 

 

 

 

 

 

Reset Switch

 

 

On/Off Switch

 

 

 

 

 

 

 

 

 

5

Ground

 

6

Power switch

In

 

 

 

 

 

 

 

 

7

Reset switch

In

8

Ground

 

 

 

Power

 

 

Not Connected

 

 

 

 

 

 

 

 

 

9

Power

Out

10

No pin

 

 

 

 

 

 

 

 

 

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Intel DG965RY manual Connecting to the Serial Header, Connecting to the Alternate Front Panel Power LED Header