Installing and Replacing Desktop Board Components

Connecting the Front Panel Header

Before connecting the front panel header, observe the precautions in “Before You Begin” on page 21. Figure 10, C on page 30 shows the location of the front panel header.

Table 4 shows the pin assignments for the front panel header.

Table 4.

Front Panel Header (J9G1)

 

 

 

 

 

 

 

 

 

Pin

Signal

 

In/Out

Description

Pin

Signal

In/Out

Description

1

3

Hard Drive Activity LED

HD_PWR

Out

Hard disk LED pull-

2

 

 

up (330 ) to +5 V

 

 

 

 

 

HDA#

Out

Hard disk active LED

4

 

 

 

 

 

 

 

 

Power LED

HDR_BLNK_GRN

Out

Front panel green

 

 

LED

 

 

 

HDR_BLNK_YEL

Out

Front panel yellow

 

 

LED

 

 

 

5

7

9

Reset Switch

Ground

 

Ground

 

 

 

FP_RESET#

In

Reset switch

 

 

 

+5 V

Out

Power

 

 

 

6

8

10

On/Off Switch

SWITCH_ON#

In

Power switch

 

 

 

Ground

 

Ground

 

 

 

N/C

 

Not connected

 

 

 

Installing a Front Panel Audio Solution

Figure 10, A on page 30 shows the location of the front panel audio header. Table 5 shows the pin assignments for the front panel audio header.

Table 5.

Front Panel Audio Header Signal Names (J8A1)

Pin

1

3

5

7

9

Signal Name

AUD-MIC

AUD-MIC-BIAS

AUD-FPOUT-R

HP-ON

AUD-FPOUT-L

Pin

2

4

6

8

10

Signal Name

AUD-GND

AUD-VCC

AUD-RET-R

KEY

AUD-RET-L

To install the cable that connects the front panel audio solution to the front panel audio header, follow these steps:

1.Observe the precautions in “Before You Begin” on page 21.

2.Turn off all peripheral devices connected to the computer. Turn off the computer and disconnect the AC power cord.

3.Remove the cover.

4.Locate the front panel audio header (J8A1), see Figure 10, A on page 30.

5.Remove the two jumpers from the header to disable the back panel audio connectors.

6.Install a correctly keyed and shielded front panel audio cable.

7.Connect the audio cable to the front panel audio solution.

8.Replace the cover.

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Intel D845PESV manual Connecting the Front Panel Header, Installing a Front Panel Audio Solution, Front Panel Header J9G1