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 |
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1 | DCD |
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3 | TXD# |
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5 | Ground |
7RTS
9RI
Pin | Signal Name |
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2 | RXD# |
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4 | DTR |
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6 | DSR |
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8 | CTS |
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10 | No Connection |
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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 |
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1 | Front panel green LED | Out |
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2 | No pin |
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3 | Front panel yellow LED | Out |
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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
Table 10 shows the pin assignments for the front panel header.
Table 10. Front Panel Header
Pin | Description | In/Out | Pin | Description | In/Out |
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| Hard Drive Activity LED |
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| Power LED |
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1 | Hard disk LED | Out | 2 | Front panel green LED | Out |
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3 | Hard disk active LED | Out | 4 | Front panel yellow LED | Out |
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| Reset Switch |
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| On/Off Switch |
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5 | Ground |
| 6 | Power switch | In |
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7 | Reset switch | In | 8 | Ground |
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| Power |
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| Not Connected |
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9 | Power | Out | 10 | No pin |
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