Asus P4B-LX - Manual (Page 42)

2-22 Chapter 2: Hardware information
8. System panel connectors (20-pin PANEL)
This connector accommodates several system front panel functions.
Figure 2-28 System Panel Connectors
• System Power LED Lead (3-1 pin PWRLED)
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.
• Keyboard Lock Lead (2-pin KEYLOCK)
This lead connects to a chassis-mounted switch to allow the use of the
keyboard lock feature.
• System Warning Speaker Lead (2-pin SPKR)
This 4-pin connector connects to the case-mounted speaker and
allows you to hear system beeps and warnings.
• System Message LED Lead (2-pin SUSLED)
This 2-pin connector is for the system message LED that indicates
receipt of messages from a fax/modem. The normal status for this LED
is ON, when there is no incoming data signal. The LED blinks when
data is received. The system message LED feature requires an ACPI
OS and driver support.
P4B-LX
P4B-LX System Panel Connectors
* Requires an ATX power supply.
KEY_LOCK
IDELED-
PWR_LED+
MSG_LED+ KEY_LOCK_G +5V SPKR
SUSLED
RESET
PWR_BTN
PWRBTN
IDELED+
PWR_LED-
PWR_LED2
-
NC GND SMI
PWR_BTN_G
RESET_G
MSG_LED- SMI_G
IDELED PWRLED
RESETCON
IDELED2
EXTSMI
Speaker
Connector
KEYLOCK