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 | Pin assignment of internal ports | 
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 | Pin | Signal | Pin | Signal | 
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 | 1 | GND | 2 | Speaker - | 
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 | 3 | "Stand by" LED + | 4 | Key | 
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 | 5 | Key | 6 | GND | 
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 | 7 | "Power On" LED + | 8 | Speaker + | 
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 | 9 | "Power On" LED + | 10 | Reserved | 
| 
 | 11 | "Power On" LED - | 12 | Reserved | 
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 | "Stand by" LED - | 
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 | (GND) | 
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 | 13 | "Message" LED + | 14 | Key | 
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 | 15 | "Message" LED - | 16 | Password Skip | 
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 | 17 | Key | 18 | "SCSI" LED Input (low asserted) | 
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 | 19 | "HD" LED + | 20 | "SCSI" LED Input (low asserted) | 
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 | 21 | "HD" LED - | 22 | Recover BIOS | 
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 | 23 | GND | 24 | Key | 
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 | 25 | 26 | GND | |
| 
 | 27 | reserved | 28 | GND | 
| 
 | 29 | 30 | GND | 
Serial ATA
1
| Pin | Signal | Pin | Signal | 
| 1 | GND | 2 | Transmit data positive | 
| 3 | Transmit data negative | 4 | GND | 
| 5 | Receive data negative | 6 | Receive data positive | 
| 7 | GND | 8 | Key | 
| English - 13 | 
