AXIOMTEK Mano831 Series User manual

MANO831 Series
Intel®AtomTM D2550 Mini ITX
Motherboard
User’s Manual

ii
Disclaimers
This manual has been carefully checked and believed to contain accurate information.
Axiomtek Co., Ltd. assumes no responsibility for any infringements of patents or any third
party’s rights, and any liability arising from such use.
Axiomtek does not warrant or assume any legal liability or responsibility for the accuracy,
completeness or usefulness of any information in this document. Axiomtek does not make any
commitment to update the information in this manual.
Axiomtek reserves the right to change or revise this document and/or product at any time
without notice.
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
without the prior written permission of Axiomtek Co., Ltd.
CAUTION
If you replace wrong batteries, it causes the danger of explosion. It is recommended by the
manufacturer that you follow the manufacturer’s instructions to only replace the same or
equivalent type of battery, and dispose of used ones.
Copyright 2012 Axiomtek Co., Ltd.
All Rights Reserved
November 2012, Version A1
Printed in Taiwan

iii
ESD Precautions
Computer boards have integrated circuits sensitive to static electricity. To prevent chipsets
from electrostatic discharge damage, please take care of the following jobs with precautions:
Do not remove boards or integrated circuits from their anti-static packaging until you are
ready to install them.
Before holding the board or integrated circuit, touch an unpainted portion of the system
unit chassis for a few seconds. It discharges static electricity from your body.
Wear a wrist-grounding strap, available from most electronic component stores, when
handling boards and components.
Trademarks Acknowledgments
Axiomtek is a trademark of Axiomtek Co., Ltd.
Windows®is a trademark of Microsoft Corporation.
AMI is a trademark of American Megatrend Inc.
IBM, PC/AT, PS/2, VGA are trademarks of International Business Machines Corporation.
Intel®is a trademark of Intel Corporation.
Winbond is a trademark of Winbond Electronics Corp.
Realtek is a trademark of Realtek Semi-Conductor Co., Ltd.
Other brand names and trademarks are the properties and registered brands of their
respective owners.

iv
Conventions Used in This Manual
To make sure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
Warning
Information to prevent injury to yourself when trying to complete a task.
Caution
Information to prevent damage to the components when trying to complete a
task.
Important
Instructions that you MUST follow to complete a task.
Note
Tips and additional information to help you complete a task.

v
Table of Contents
Disclaimers.....................................................................................................ii
ESD Precautions...........................................................................................iii
Conventions Used in This Manual...............................................................iv
Chapter 1 Introduction............................................. 1
1.1 Features...............................................................................................1
1.2 Specifications......................................................................................2
1.3 Utilities Supported ..............................................................................3
1.4 Block Diagram.....................................................................................4
Chapter 2 Board and Pin Assignments.................... 5
2.1 Board Layout.......................................................................................5
2.2 Jumper Settings..................................................................................7
2.2.1 Clear CMOS (JCMOS1).............................................................................. 8
2.2.2 COM3 RS-232/422/485 Mode Setting (JP1, JP2, JP3).............................. 8
2.2.3 COM4 RS-232/422/485 Mode Setting (JP4, JP5, JP6).............................. 9
2.2.4 COM3 RI/+5V/+12V Selection (JCOMPWR3) ............................................ 9
2.2.5 COM4 RI/+5V/+12V Selection (JCOMPWR4) ............................................ 9
2.2.6 LVDS Backlight Power Selection (JLVDS_P1)............................................ 9
2.2.7 AT/ATX Power Mode Selection (JDS6)..................................................... 10
2.2.8 SATAPort 2 Function Selection (JSATA_SEL1) ....................................... 10
2.2.9 System Deep S5 Power Saving Control (JDS5)....................................... 10
2.3 Connectors ........................................................................................11
2.3.1 Rear Panel Connectors............................................................................. 12
2.3.2 FAN Connectors (CPU_FAN1 and SYS_FAN1) ....................................... 12
2.3.3 Front Panel Connector (F_PANEL)........................................................... 13
2.3.4 ATX Power Connector (ATX12V).............................................................. 14
2.3.5 Serial Connectors (COM3 and COM4) ..................................................... 14
2.3.6 Internal Audio Connector (AAFP1)............................................................ 15
2.3.7 Digital Audio Connector (SPDIF_OUT1)................................................... 15
2.3.8 TPM Connector (TPM1)............................................................................ 16
2.3.9 Serial ATA Connectors (SATA1 and SATA2) ............................................. 16
2.3.10 USB Connectors (USB45 and USB6)....................................................... 17
2.3.11 Keyboard/Mouse Connector (KB1)........................................................... 17
2.3.12 LVDS Connectors (JLVDS1 and JLVDS2) ................................................ 18
2.3.13 LVDS Backlight Connector (JBKL1).......................................................... 19
2.3.14 GPIO Connector (JDIO1).......................................................................... 19
2.3.15 Serial ATA Power Connectors (SATAPW1 and SATAPW2) ...................... 19

vi
Chapter 3 Hardware Installation ........................... 21
3.1 Motherboard Overview .....................................................................21
3.1.1 Placement Direction.................................................................................. 21
3.1.2 Screw Holes .............................................................................................. 21
3.2 Central Processing Unit (CPU).........................................................22
3.2.1 CPU Location............................................................................................ 22
3.2.2 The CPU Heatsink and Fan ...................................................................... 23
3.3 System Memory.................................................................................24
3.3.1 Overview ................................................................................................... 24
3.3.2 Memory Configurations............................................................................. 25
3.3.3 Installing a SO-DIMM................................................................................ 25
3.3.4 Removing a SO-DIMM.............................................................................. 27
3.4 Expansion Card.................................................................................27
3.4.1 Installing an Expansion Card..................................................................... 27
3.4.2 Configuring an Expansion Card ................................................................ 28
3.4.3 PCI Slot..................................................................................................... 28
3.4.4 PCI-Express Mini Card Connector............................................................ 28
3.4.5 CompactFlashTM Socket............................................................................ 29
Chapter 4 Hardware Description ........................... 31
4.1 Microprocessors ...............................................................................31
4.2 BIOS ...................................................................................................31
4.3 System Memory.................................................................................31
4.4 I/O Port Address Map........................................................................32
4.5 Interrupt Controller (IRQ) Map .........................................................34
4.6 Memory Map ......................................................................................37
Chapter 5 AMI BIOS Setup Utility .......................... 39
5.1 Starting...............................................................................................39
5.2 Navigation Keys ................................................................................39
5.3 Main Menu..........................................................................................41
5.4 Advanced Menu.................................................................................42
5.5 Chipset Menu.....................................................................................53
5.6 Boot Menu..........................................................................................58
5.7 Security Menu....................................................................................60
5.8 Save & Exit Menu ..............................................................................61

MANO831 Mini ITX Board
Introduction 1
Chapter 1
Introduction
The MANO831 is designed to unleash the power of the new Intel®Atom™ processor D2550
which supports the new revolutionary two–chip layout. The Intel®Cedarview processor also
provides additional flexibility and upgradeability with two slots of single channel DDR3 memory
at 1066 MHz supporting up to 4GB maximum. With breakthrough low-power silicon, MANO831
can be used with a passive thermal solution based on the recommended boundary conditions.
MANO831 represents a fundamental shift in system design—small, yet powerful enough to
enable a big internet experience for all audiences.
1.1 Features
Intel® AtomTM D2550
2 DDR3 1066/800MHz up to 4GB
7 USB 3.0 supported
2 SATA 2.0 supported
CompactFlashTM supported

MANO831 Mini ITX Board
2 Introduction
1.2 Specifications
CPU
Intel®AtomTM D2550 1.86GHz dual-core processor.
System Chipset
Intel®NM10.
BIOS
AMI 16Mb SPI ROM.
System Memory
D2550: Two 204-pin SO-DIMM sockets support up to 4GB single channel DDR3
1066/800MHz SDRAM.
Onboard Multi I/O
Controller: Winbond 83627DHG.
Serial ports: Two RS-232 ports with 5V/12V power and two RS-232/422/485 with
5V/12V power.
One PS/2 keyboard/mouse.
Serial ATA
Two SATA 2.0 ports (3Gb/s performance).
USB Interface
Seven USB 2.0 ports.
Display
One DVI
One VGA
Two LVDS.
Ethernet
Two Realtek RTL8111E Gigabit LAN.
Audio
HD audio compliant (with MIC-in/line-out/line-in and front audio header) via Realtek
ALC892.
Expansion Interface
One PCI slot.
One PCI-Express Mini Card.
One CompactFlashTM socket.
Hardware Monitoring
Monitoring temperature, voltage and cooling fan status. Auto throttling control when
CPU overheats.
Watchdog Timer
1~255 seconds; up to 256 levels.
Power Management
ACPI (Advanced Configuration and Power Interface).

MANO831 Mini ITX Board
Introduction 3
Form Factor
Mini ITX form factor.
Note
All specifications and images are subject to change without notice.
1.3 Utilities Supported
Chipset driver
Ethernet driver
Graphics driver
Audio driver
TPM driver
ME driver
RAID driver
USB3.0 driver

MANO831 Mini ITX Board
4 Introduction
1.4 Block Diagram

MANO831 Mini ITX Board
Board and Pin Assignments 5
Chapter 2
Board and Pin Assignments
2.1 Board Layout
Top View

MANO831 Mini ITX Board
6 Board and Pin Assignments
Bottom View

MANO831 Mini ITX Board
Board and Pin Assignments 7
2.2 Jumper Settings
Jumper is a small component consisting of jumper clip and jumper pins. Install jumper clip on 2
jumper pins to close. And remove jumper clip from 2 jumper pins to open. The following
illustration shows how to set up jumper.
Before applying power to MANO831 Series, please make sure all of the jumpers are in factory
default position. Below you can find a summary table and onboard default settings.
Jumper
Description
Setting
JCMOS1
Clear CMOS
Default: Normal Operation
1-2 close
JP1
COM3 RS-232/422/485 Mode Setting
Default: RS-232 Mode
1-3, 2-4 close
JP2
1-3, 2-4 close
JP3
1-2 close
JP4
COM4 RS-232/422/485 Mode Setting
Default: RS-232 Mode
1-3, 2-4 close
JP5
1-2 close
JP6
1-3, 2-4 close
JCOMPWR3
COM3 RI/+5V/+12V Selection
Default: RI
3-4 close
JCOMPWR4
COM4 RI/+5V/+12V Selection
Default: RI
3-4 close
JLVDS_P1
LVDS Backlight Power Selection
Default: +3.3V
2-3 close
JDS6
AT/ATX Power Mode Selection
Default: ATX Mode
2-3 close
JSATA_SEL1
SATA Port 2 Function Selection
Default: SATA HDD
2-3 close
JDS5
System Deep S5 Power Saving Control
Default: Normal ACPI S5 State
2-3 close

MANO831 Mini ITX Board
8 Board and Pin Assignments
2.2.1 Clear CMOS (JCMOS1)
This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can
clear the CMOS memory of date, time, and system setup parameters by erasing the
CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS,
which includes system setup information such as system passwords.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Remove the onboard battery.
3. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3
for about 5~10 seconds, then move the cap back to pins 1-2.
4. Re-install the battery.
5. Plug the power cord and turn ON the computer.
6. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter
data.
Caution
Except when clearing the RTC RAM, never remove the cap on this jumper
default position. Removing the cap will cause system boot failure!
2.2.2 COM3 RS-232/422/485 Mode Setting (JP1, JP2, JP3)
This jumper allows you to select the operation mode of COM port 3.
Function
Setting
Normal operation (Default)
1-2 close
Clear CMOS
2-3 close
Function
Setting
RS-232 mode
(Default)
JP1 1-3, 2-4 close
JP2 1-3, 2-4 close
JP3 1-2 close
RS-422 mode
JP1 3-5, 4-6 close
JP2 3-5, 4-6 close
JP3 3-4 close
RS-485 mode
JP1 3-5, 4-6 close
JP2 3-5, 4-6 close
JP3 5-6 close

MANO831 Mini ITX Board
Board and Pin Assignments 9
2.2.3 COM4 RS-232/422/485 Mode Setting (JP4, JP5, JP6)
This jumper allows you to select the operation mode of COM port 4.
2.2.4 COM3 RI/+5V/+12V Selection (JCOMPWR3)
This jumper allows you to select the power mode of COM port 3.
2.2.5 COM4 RI/+5V/+12V Selection (JCOMPWR4)
This jumper allows you to select the power mode of COM port 4.
2.2.6 LVDS Backlight Power Selection (JLVDS_P1)
This jumper allows you to select LVDS backlight power.
Function
Setting
RS-232 mode
(Default)
JP4 1-3, 2-4 close
JP5 1-2 close
JP6 1-3, 2-4 close
RS-422 mode
JP4 3-5, 4-6 close
JP5 3-4 close
JP6 3-5, 4-6 close
RS-485 mode
JP4 3-5, 4-6 close
JP5 5-6 close
JP6 3-5, 4-6 close
Function
Setting
+12V
1-2 close
RI (Default)
3-4 close
+5V
5-6 close
Function
Setting
+12V
1-2 close
RI (Default)
3-4 close
+5V
5-6 close
Function
Setting
+5V
1-2 close
+3.3V (Default)
2-3 close

MANO831 Mini ITX Board
10 Board and Pin Assignments
2.2.7 AT/ATX Power Mode Selection (JDS6)
This jumper allows you to select AT mode or ATX mode.
2.2.8 SATA Port 2 Function Selection (JSATA_SEL1)
2.2.9 System Deep S5 Power Saving Control (JDS5)
Function
Setting
AT mode
1-2 close
ATX mode (Default)
2-3 close
Function
Setting
CF
1-2 close
SATA HDD (Default)
2-3 close
Function
Setting
Deep S5 state
1-2 close
Normal ACPI S5 state (Default)
2-3 close

MANO831 Mini ITX Board
Board and Pin Assignments 11
2.3 Connectors
Signals go to other parts of the system through connectors. Loose or improper connection
might cause problems, please make sure all connectors are properly and firmly connected.
Here is a summary table which shows all connectors on the hardware.
Connector
Description
COM1, COM2
COM1 and COM2 Connector
VGA1
VGA Port
DC1
12V DC IN
DVI
DVI–D Port
LAN1_USB23
LAN1 and USB 2.0 Connector
LAN2_USB01
LAN2 and USB 2.0 Connector
Audio1
Audio Jack
SODIMM_1
204-pin DDR3 SO-DIMM Slot 1
SODIMM_2
204-pin DDR3 SO-DIMM Slot 2
PCI
PCI Slot
MINI-CARD1
PCI-Express Mini Card Connector
CF1
CompactFlashTM Socket
CPU_FAN1
CPU Fan Connector
SYS_FAN1
System Fan Connector
F_PANEL
Front Panel Connector
ATX12V
ATX Power Connector
COM3, COM4
Serial Connectors
AAFP1
Internal Audio Connector
SPDIF_OUT1
Digital Audio Connector
TPM1
TPM Connector
SATA1, SATA2
Serial ATA Connectors
USB45, USB6
USB Connectors
KB1
Keyboard/Mouse Connector
JLVDS1, JLVDS2
LVDS Connectors
JBKL1
LVDS Backlight Connector
JDIO1
GPIO Connector
SATAPW1, SATAPW2
Serial ATA Power Connectors

MANO831 Mini ITX Board
12 Board and Pin Assignments
2.3.1 Rear Panel Connectors
2.3.2 FAN Connectors (CPU_FAN1 and SYS_FAN1)
The fan connectors support cooling fans of 280mA (3.36 W max.) at 4800rpm or a total
of 1A (12W max.) at +12V. Connect the fan cables to the fan connectors on the
motherboard, making sure that the black wire of each cable matches the ground pin of
the connector.
CPU fan interface is available through CPU_FAN1, see table below.
System fan interface is available through SYS_FAN1, see table below.
Caution
Do not forget to connect the fan cables to the fan connectors. Insufficient
air flow inside the system may damage the motherboard components.
These are not jumpers! DO NOT place jumper caps on the fan connectors.
Pin
Signal
1
GND
2
+12VPWM
3
Sensor
Pin
Signal
1
GND
2
+12VPWM
3
Sensor
1
1

MANO831 Mini ITX Board
Board and Pin Assignments 13
2.3.3 Front Panel Connector (F_PANEL)
This connector is for a chassis-mounted front panel I/O module that supports power
on/reset switch and HDD/power LED indicate.
1
2
ATX Power Button/Soft-off Button (Pin 6-8 PWRBT)
This 2-pin connector is for the system power button. Pressing the power button turns the
system on or puts the system in sleep or soft-off mode depending on the BIOS settings.
Pressing the power switch and holding it for more than four seconds while the system is
ON turns the system OFF.
Reset Button (Pin 5-7 SYS_RST)
This 2-pin connector is for the chassis-mounted reset button for system reboot without
turning off the system power.
Power LED (Pin 2-4 PWRLED)
This 2-pin connector is for the system power LED. Connect the chassis power LED
cable to this connector. The system power LED lights up when you turn on the system
power, and blinks when the system is in sleep mode.
Hard Disk Drive Activity LED (Pin 1-3 HDLED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable to
this connector. The IDE LED lights up or flashes when data is read from or written to the
HDD.
Pin
Signal
1
HDD_LED+
2
SUPLED
3
SATA_LED#
4
GND
5
GND
6
PANSWIN#
7
SRST#
8
GND
9
NC

MANO831 Mini ITX Board
14 Board and Pin Assignments
2.3.4 ATX Power Connector (ATX12V)
This connector is for ATX power supply plug. The power supply plug is designed to fit
this connector in only one orientation. Find the proper orientation and push down firmly
until the connector completely fit.
Note
Use of a PSU with a higher power output is recommended when
configuring a system with more power-consuming devices. The
system may become unstable or may not boot up if the power is
inadequate.
Make sure that your power supply unit (PSU) can provide at least the
minimum power required by your system.
2.3.5 Serial Connectors (COM3 and COM4)
These connectors are for serial (COM) ports. Connect the serial port module cable to
this connector, then install the module to a slot opening at the back of the system
chassis.
COM3, COM4
Pin
Signal
Pin
Signal
1
GND
3
+12V
2
GND
4
+12V
Pin
Signal
1
DDCD2#
2
RRXD2
3
TTXD2
4
DDTR2#
5
GND
6
DDSR2#
7
RRTS2#
8
CCTS2#
9
RRI2
1
1