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2.6 Onboard Headers and Connectors
Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over
these headers and connectors. Placing jumper caps over the headers and connectors
will cause permanent damage to the motherboard.
System Panel Header
(9-pin PANEL1)
(see p.1, No. 16)
PWRBTN (Power Switch):
Connect to the power switch on the chassis front panel. You may configure the way to
turn off your system using the power switch.
RESET (Reset Switch):
Connect to the reset switch on the chassis front panel. Press the reset switch to restart
the computer if the computer freezes and fails to perform a normal restart.
PLED (System Power LED):
Connect to the power status indicator on the chassis front panel. The LED is on when
the system is operating. The LED keeps blinking when the system is in S1/S3 sleep
state. The LED is off when the system is in S4 sleep state or powered off (S5).
HDLED (Hard Drive Activity LED):
Connect to the hard drive activity LED on the chassis front panel. The LED is on
when the hard drive is reading or writing data.
The front panel design may differ by chassis. A front panel module mainly consists
of power switch, reset switch, power LED, hard drive activity LED, speaker and etc.
When connecting your chassis front panel module to this header, make sure the wire
assignments and the pin assignments are matched correctly.
Chassis Intrusion and
Speaker Header
(7-pin SPK_CI1)
(see p.1, No. 15)
Connect the power
PLED+
PLED-
switch, reset switch and
PWRBTN#
GND
system status indicator on
the chassis to this header
1
GND
according to the pin
RESET#
GND
HDLED-
assignments below. Note
HDLED+
the positive and negative
pins before connecting
the cables.
SPEAKER
Please connect the
DUMMY
chassis intrusion and the
DUMMY
+5V
chassis speaker to this
header.
1
SIGNAL
GND
DUMMY
B460M Pro4
19
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