P8SC8/P8SCi User's Manual
Serial Ports
Two serial ports are included on the motherboard: COM1 is a port located beside the mouse/key- board ports and COM2 is a header located below the Floppy Drive. See the table on the right for pin definitions.
*NC indicates no connection.
Serial Port Pin Definitions
(COM1)
| Pin Number | Definition | Pin Number | Definition |
| 1 | CD | 6 | DSR |
| 2 | RD | 7 | RTS |
| 3 | TD | 8 | CTS |
| 4 | DTR | 9 | RI |
| 5 | Ground |
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| Serial Port Pin Definitions |
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| Pin Number | Definition | Pin Number | Definition |
| 1 | CD | 6 | DSR |
| 2 | RD | 7 | RTS |
| 3 | TD | 8 | CTS |
| 4 | DTR | 9 | RI |
| 5 | Ground | 10 | NC |
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Speaker Connector
The speaker connector is located on J9 and allows you to choose between using the internal or an external speaker. For the internal speaker, short Pins 3 and 4. To use an external speaker, place the speaker cable header on the speaker connector. See the table on the right for pin definitions.
S peaker: P in Definition
Fucntion | P in Definition |
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P ins 1 - 4 | E xternal S peaker |
P ins 3, 4 | Internal S peaker |
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COM1
USB0/1 KB/MS
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| JPWAKE1 |
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| JPUSB1 |
VGA COM1 ParallelPort | ||
| Fan5 | Fan1 | |
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JPF |
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| CPU |
E7221 |
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CopperRiver |
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NorthBridge |
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GLAN1 |
| DIMM | 1A |
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GLAN2 |
| DIMM | 1B | Fan2 |
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| Fan3 | 1 | |||
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| DIMM | 2A |
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| F | |
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| J | |||
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| LE1 |
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| JLED | ||||
GLAN |
| DIMM 2B |
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CTRL |
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GLAN |
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| Buzzer | |||||
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| 9 | |||
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Speaker
CTRL
JPL1 
JPL2
ICH6R SouthBridge
BIOS | Battery |
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WOL
ED L JS
SCSI BChannel
PCI 33MHz
JBT1
JBT1
SCSI CTRL
7902 W
IPMI | Floppy |
5J IDE
SCSI AChannel
JWOR |
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SATA3 SATA2 | SATA1 | SATA0 |
JPA1 
COM2 |
J W D |
USB2/3
J L 1
COM2
USB6/7
Fan4
