ASROCK B550 Phantom Gaming-ITX/ax, Manual, Page: 31 / 175

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B550 Phantom Gaming-ITX/ax
2.6 Onboard Headers and Connectors
System Panel Header
(9-pin PANEL1)
(see p.1, No. 11) Connect the power
button, reset button and
system status indicator on
the chassis to this header
according to the pin
assignments below. Note
the positive and negative
pins before connecting
the cables.
Chassis Speaker Header
(4-pin SPEAKER1)
(see p.1, No. 16) Please connect the chassis
speaker to this header.
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.
PWRBTN (Power Button):
Connect to the power button on the chassis front panel. You may configure the way
to turn off your system using the power button.
RESET (Reset Button):
Connect to the reset button on the chassis front panel. Press the reset button 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 button, reset button, 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.
GND RESET#
PWRBTN#
PLED-
PLED+
GND
HDLED-
HDLED+
1
GND
1
+5V
DUMMY
DUMMY
SPEAKER