User Guide

13
ASRock AD2550-ITX Motherboard
English
2.5 Pin Header Easy Installation Guide
ASRock motherboard is equipped with pin headers with obvious colors which indi-
cate you to recognize the crucial headers more easily. Please refer to below illustra-
tions for the pin denition of onboard headers. If you want to have more information
about the usage of these headers, please refer to “Jumpers Setup“ and “Onboard
Headers and Connectors“ for details.
1
PLED+
PLED-
PWRBTN#
HDLED+
HDLED-
GND
REST#
GND
DUMMY
1
+5V
DUMMY
SPEAKER
DUMMY
1
GND
PRESENCE#
MIC_RET
MIC2_L
MIC2_R
OUT2_R
J_SENSE
OUT2_L
OUT_RET
1
USB_PWR
P-
P+
USB_PWR
P-
P+
GND
GND
DUMMY
Chassis Speaker Header
USB 2.0 Header
Front Panel Audio Header
System Panel Header