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Chapter 1: Product introduction
9. Serial port connector (10-1 pin COM1)
This connector accommodates the bundled serial port module. Use the COM
cable to connect the serial port module to this connector, then install the
module into a slot opening at the front or back of the system chassis.
10. System panel connector (10-1 pin PANEL1)
This connector accommodates several system front panel functions.
P4SP-MX
®
P4SP-MX COM1 Connector
PIN 1
COM1
P4SP-MX
®
P4SP-MX System Panel Connectors
*
Requires an ATX power supply.
PLED-
Ground
PWR
PLED+
+5V
Speaker
Speaker
Connector
Power LED
Ground
Reset SW
SMI Lead
ExtSMI#
Ground
Reset
Ground
Ground
ATX Power
Switch*
IDELED
IDE LED
+5 V
• System Power LED Lead (3-1 pin PLED)
This 3-1 pin connector connects to the system power LED. The LED lights up
when you turn on the system power, and blinks when the system is in sleep
mode.
• System Warning Speaker Lead (4-pin SPEAKER)
This 4-pin connector connects to the case-mounted speaker and allows you to
hear system beeps and warnings.
• System Management Interrupt Lead (2-pin SMI)
This 2-pin connector allows you to manually place the system into a suspend
mode, or “green” mode, where system activity is instantly decreased to save
power and to expand the life of certain system components. Attach the
case-mounted suspend switch to this 2-pin connector.
