Owner's Manual
4
Chapter 1: Introduction
Thank you for purchasing ASRock AD2550RA/U3S3 / AD2550R/U3S3 /
AD2550R motherboard, a reliable motherboard produced under ASRock’s
consistently stringent quality control. It delivers excellent performance with
robust design conforming to ASRock’s commitment to quality and endur-
ance.
In this manual, chapter 1 and 2 contains the introduction of the mother-
board and step-by-step hardware installation guide. Chapter 3 and 4 con-
tains the conguration guide of BIOS setup and information of the Support
CD.
Because the motherboard specications and the BIOS software
might be updated, the content of this manual will be subject to
change without notice. In case any modications of this manual
occur, the updated version will be available on ASRock’s web-
site without further notice. You may nd the latest VGA cards
and CPU support list on ASRock’s website as well. ASRock
website http://www.asrock.com
If you require technical support related to this motherboard,
please visit our website for specic information about the model
you are using.
www.asrock.com/support/index.asp
1.1 Package Contents
ASRock AD2550RA/U3S3 / AD2550R/U3S3 / AD2550R Motherboard
(Mini ITX Form Factor: 6.7-in x 6.7-in, 17.0 cm x 17.0 cm)
ASRock AD2550RA/U3S3 / AD2550R/U3S3 / AD2550R Quick Installation
Guide
ASRock AD2550RA/U3S3 / AD2550R/U3S3 / AD2550R Support CD
5 x Serial ATA (SATA) Data Cables (Optional)
1 x I/O Panel Shield