AXIOMTEK eBOX532-100-FL User Manual

eBOX532-100-FL Series

Fanless Embedded System

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.

Copyright 2016 Axiomtek Co., Ltd.

All Rights Reserved
Jan. 2016, Version A2
Printed in Taiwan

iii

Safety Precautions

Before getting started, please read the following important safety precautions.

1. The eBOX532-100-FL does not come equipped with an operating system. An
operating system must be loaded first before installing any software into the
computer.

2. Be sure to ground yourself to prevent static charge when installing the internal
components. Use a grounding wrist strap and place all electronic components in any
static-shielded devices. Most electronic components are sensitive to static electrical
charge.

3. Disconnect the power cord from the eBOX532-100-FL before making any installation.
Be sure both the system and the external devices are turned OFF. Sudden surge of
power could ruin sensitive components. Make sure the eBOX532-100-FL is properly
grounded.

4. Make sure the voltage of the power source is correct before connecting the
equipment to the power outlet.

5. Turn OFF the system power before cleaning. Clean the system using a cloth only.
Do not spray any liquid cleaner directly onto the screen.

6. Do not leave this equipment in an uncontrolled environment where the storage
temperature is below -20℃ or above 60℃. It may damage the equipment.

7. Do not open the system’s back cover. If opening the cover for maintenance is a must,
only a trained technician is allowed to do so. Integrated circuits on computer boards
are sensitive to static electricity. To avoid damaging chips from electrostatic
discharge, observe the following precautions:

 Before handling a board or integrated circuit, touch an unpainted portion of the

system unit chassis for a few seconds. This will help to discharge any static
electricity on your body.

 When handling boards and components, wear a wrist-grounding strap, available

from most electronic component stores.

iv

Classification

1. Degree of production against electric shock: not classified

2. Degree of protection against the ingress of water: IP40

3. Equipment not suitable for use in the presence of a flammable anesthetic mixture
with air or with oxygen or nitrous oxide.

4. Mode of operation: Continuous

5. Type of protection against electric shock: Class I equipment

General Cleaning Tips

You may need the following precautions before you begin to clean the computer. When you
clean any single part or component for the computer, please read and understand the details
below fully.

When you need to clean the device, please rub it with a piece of dry cloth.

1. Be cautious of the tiny removable components when you use a vacuum cleaner to
absorb the dirt on the floor.

2. Turn the system off before you start to clean up the component or computer.

3. Never drop the components inside the computer or get circuit board damp or wet.

4. Be cautious of all kinds of cleaning solvents or chemicals when you use it for the sake of
cleaning. Some individuals may be allergic to the ingredients.

5. Try not to put any food, drink or cigarette around the computer.

v

Cleaning Tools:

Although many companies have created products to help improve the process of cleaning
your computer and peripherals users can also use household items to clean their computers
and peripherals. Below is a listing of items you may need or want to use while cleaning your
computer or computer peripherals.

Keep in mind that some components in your computer may only be able to be cleaned using
a product designed for cleaning that component, if this is the case it will be mentioned in the
cleaning.

 Cloth: A piece of cloth is the best tool to use when rubbing up a component. Although

paper towels or tissues can be used on most hardware as well, we still recommend
you to rub it with a piece of cloth.

 Water or rubbing alcohol: You may moisten a piece of cloth a bit with some water or

rubbing alcohol and rub it on the computer. Unknown solvents may be harmful to the
plastics parts.

 Vacuum cleaner: Absorb the dust, dirt, hair, cigarette particles, and other particles

out of a computer can be one of the best methods of cleaning a computer. Over time
these items can restrict the airflow in a computer and cause circuitry to corrode.

 Cotton swabs: Cotton swaps moistened with rubbing alcohol or water are excellent

tools for wiping hard to reach areas in your keyboard, mouse, and other locations.

 Foam swabs: Whenever possible it is better to use lint free swabs such as foam

swabs.

Note We strongly recommended that you should shut down the system before you start

to clean any single components.

Please follow the steps below:

1. Close all application programs

2. Close operating software

3. Turn off power switch

4. Remove all device

5. Pull out power cable

vi

Scrap Computer Recycling

If the computer equipments need the maintenance or are beyond repair, we strongly
recommended that you should inform your Axiomtek distributor as soon as possible for the
suitable solution. For the computers that are no longer useful or no longer working well,
please contact your Axiomtek distributor for recycling and we will make the proper
arrangement.

Trademarks Acknowledgments

Axiomtek is a trademark of Axiomtek Co., Ltd. IBM, PC/AT, PS/2, VGA are trademarks of
International Business Machines Corporation.

Intel® and Pentium® are registered trademarks of Intel Corporation.
MS-DOS, Microsoft C and QuickBASIC are trademarks of Microsoft Corporation.
VIA is a trademark of VIA Technologies, Inc.
SST is a trademark of Silicon Storage Technology, Inc.
UMC is a trademark of United Microelectronics Corporation.Other brand names and
trademarks are the properties and registered brands of their respective owners.

vii

Table of Contents

Disclaimers .............................................................................................................. ii

Safety Precautions ................................................................................................. iii

Classification .......................................................................................................... iv

General Cleaning Tips ........................................................................................... iv

Scrap Computer Recycling .................................................................................... vi

CHAPTER 1 INTRODUCTION ........................................................................ 1

1.1 General Description ............................................................................ 1

1.2 System Specifications ........................................................................ 3

1.2.1 CPU .................................................................................................................... 3

1.2.2 I/O System ......................................................................................................... 3

1.2.3 System Specification ........................................................................................ 4

1.3 Dimensions ......................................................................................... 5

1.4 I/O Outlets ............................................................................................ 7

1.5 Packing List ....................................................................................... 10

CHAPTER 2 HARDWARE INSTALLATION ................................................. 11

2.1 Installing the Memory Module .......................................................... 11

2.2 Installing the Hard Disk Drive .......................................................... 14

2.3 Installing the CompactFlashTM Card ................................................ 16

2.4 Installing DIN Mount (optional) ........................................................ 19

2.5 Installing Rail Mount ................................ ......................................... 21

CHAPTER 3 AMI BIOS Setup Utility ........................................................... 23

3.1 Starting .............................................................................................. 23

3.2 Navigation Keys ................................................................................ 24

3.3 Main Menu ......................................................................................... 25

3.4 Advanced Menu ................................................................................ 26

3.5 Chipset Menu .................................................................................... 33

3.6 Boot Menu ......................................................................................... 40

3.7 Security Menu ................................................................................... 41

3.8 Save & Exit Menu .............................................................................. 42

APPENDIX A Watchdog Timer ................................ ................................ .... 45

About Watchdog Timer .................................................................................... 45

How to Use Watchdog Timer ........................................................................... 45

Sample Program ............................................................................................... 47

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eBOX532-100-FL Series User’s Manual

Introduction

1

CHAPTER 1

INTRODUCTION

This chapter contains general information and detailed specifications of the eBOX532-100-FL.
The Chapter 1 includes the following sections:

 General Description
 System Specification
 Dimensions
 I/O Outlets
 Package List

1.1 General Description

The eBOX532-100-FL is an embedded system that supports onboard AMD G-Series single
core T40R (1.0 GHz) and Fusion Controller Hub A50M that delivers outstanding system
performance through high-bandwidth interfaces, multiple I/O functions for interactive

applications and various embedded computing solutions, and provide Windows

®

XPE,

Windows® 7, Windows® XP and Linux, suitable for the most endurable operation. It features
fanless design with full feature I/O, has one 204-pin unbuffered SO-DIMM socket for DDR3
1066MHz SO-DIMM memory, maximum memory capacity up to 4GB. It also features one
Gigabit/Fast Ethernet, four USB 2.0 high speed compliant, and built-in high definition audio
codec that can achieve the best stability and reliability for industrial applications. Additionally,
it provides you with unique embedded features, such as two serial ports (2x RS-232) and
enhanced system dependability by built-in Watchdog Timer.

 Features

1. Support AMD G-Series APU T40R (1.0GHz)

2. AMD Fusion Controller Hub A50M chipset

3. 1 DDR3 SO-DIMM supports up to 4GB memory capacity

4. 4 USB 2.0 ports

5. 2 COM ports

6. Supports one 10/100/1000Mbps Ethernet port

7. Supports one 2.5” SATA-600 HDD drive bay, one CompactFlash™

8. Watchdog timer

9. Din-rail/desktop/wall mount

 Reliable and Stable Design

The eBOX532-100-FL adopts the advanced cooling system and supporting the
CompactFlash™, which makes it especially suitable for vibration environments, best for
industrial automation, digital signage and gaming application.

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 O.S. Supported

The eBOX532-100-FL supports Windows® XP, Windows 7 and also supports embedded OS,
such as Windows® XP embedded and Linux. For storage device, the eBOX532-100-FL

supports one 2.5" SATA-600 HDD drive bay, and one type II CompactFlash™ slot.

 ATX or AT Mode Selection Jumper (JP6)

If JP6 is enabled for power input, the system will be automatically power on without pressing
soft power button. If JP6 is disabled for power input, it is necessary to manually press soft
power button to power on the system.

NOTE This function is similar to the feature of power on after power failure,

which is controlled by hardware circuitry instead of BIOS.

NOTE Once the Jumper is changed to AT model, the system power switch is no

longer usable and system will power-on once DC power enter system.
Therefore, customer needs to have external power switch to switch on/off
the system (because eBOX532’s pow er swi tch i s no longer w orkabl e at AT
mode).

Function

Setting

Disable auto power on (ATX Mode)

1-2 close

Enable auto power on (AT Mode)

1-2 open

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Introduction

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1.2 System Specifications

1.2.1 CPU

 CPU

 Onboard AMD G-Series APU single core T40R 1.0 GHz.

 System Chipset

 AMD Fusion Controller Hub A50M.

 BIOS

 American Megatrends Inc. UEFI (Unified Extensible Firmware Interface)

BIOS

 System Memory

 One 204-pin unbuffered DDR3 SO-DIMM socket.
 Maximum up to 4GB DDR3 1066MHz memory.

1.2.2 I/O System

 System I/O Outlet

 Two 9-pin D-Sub male connectors, COM1/2 for RS-232
 One 15-pin D-Sub female connector for VGA (for eBOX532-100-VGA-FL) or

for DisplayPort (for eBOX532-100-PGA-FL)

 One Audio connector (Line-IN, Line-OUT)
 One PS/2 connector for Keyboard and M/S through Y-Type cable
 One RJ-45 connector for 10/100/1000Base-T Ethernet
 Four USB 2.0 connectors
 One 5V DC-IN Power Input connector

NOTE DP (DisplayPort) Module

It is used for eBOX532-100-FL1.0G-PGA.
3 types of module are offered by option

- DisplayPort to HDMI Female Cable DP to HDMI

- DisplayPort to DVI Female Cable DP to DVI

- DisplayPort to VGA Female Cable DP to VGA

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1.2.3 System Specification

 Watchdog Timer

1~255 seconds; up to 255 levels.

 Power Supply

External AC 25W AC/DC power adapter with lock

(Output: DC 5V @ 5A)

 Operation Temperature

0~45 ℃ (WT HDD)

0~50 ℃ (WT CF/SSD)

 Storage Temperature

-20℃ ~ 80℃ (-4 ºF ~ 176ºF)

 Humidity

10% ~ 90% (non-condensation)

 Vibration Endurance

1Grms w/ HDD (5 ~ 500Hz, X, Y, Z directions)

 Weight

0.5 kg (1.1 lb)

 Dimensions

130mm(5.11”) (W) x 95.4mm(3.75”) (D) x 47.1mm(1.85”) (H)

NOTE All specifications and images are subject to change without notice.

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Introduction

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1.3 Dimensions

The following diagrams show you dimensions and outlines of the eBOX532-100-VGA-FL.

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Introduction

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eBOX532-100-PGA-FL.

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Introduction

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1.4 I/O Outlets

The following figures show you I/O outlets on front view of the eBOX532-100-VGA-FL &
eBOX532-100-PGA-FL

 Front View

 Rear View (eBOX532-100-VGA-FL)

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Introduction

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 Rear View (eBOX532-100-PGA-FL)

NOTE P D (DisplayPort) Module

It is used for eBOX532-100-FL1.0G-PGA.

3 types of module are offered by option

- DisplayPort to HDMI Female Cable DP to HDMI

- DisplayPort to DVI Female Cable DP to DVI

- DisplayPort to VGA Female Cable DP to VGA

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Introduction

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 SATA Connector(SATA 1)

SATA connector is for high-speed SATA interface ports and each SATA
connector supports a single SATA device.

Plug one end of the SATA cable to the SATA connector, and the other end of
cable to the SATA hard drive.

Pin

Signal

1

GND

2

SATA_TX+

3

SATA_TX-

4

GND

5

SATA_RX-

6

SATA_RX+

7

GND

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Introduction

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1.5 Packing List

The package bundled with your eBOX532-100-FL should contain the following items:

 eBOX532-100-FL System Unit x 1
 eBOX532-100-FL Quick Manual x 1
 Power Cord x 1
 CD x 1 (For Driver and User’s Manual)
 Wallmount Brackets
 Keyboard/Mouse Y-cable
 Screws
 25W 5V AC/DC Power Adapter
 HDD Mylar x1

(Figure – Power Adapter Pin Assignment)

If you can not find this package or any items are missing, please contact Axiomtek distributors
immediately.

NOTE P D (DisplayPort) Module

It is used for eBOX532-100-FL1.0G-PGA.
3 types of module are offered by option

- DisplayPort to HDMI Female Cable DP to HDMI

- DisplayPort to DVI Female Cable DP to DVI

- DisplayPort to VGA Female Cable DP to VGA

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Hardware Installation

11

CHAPTER 2

HARDWARE INSTALLATION

The eBOX532-100-FL is convenient for your various hardware configurations, such as
Memory Module, HDD (Hard Disk Drive), and CompactFlashTM card. The chapter 2 will show
you how to install the hardware. It includes:

2.1 Installing the Memory Module

Step 1 Turn off the system, and unplug the AC/DC power cord.
Step 2 Turn the system upside down to locate screws at the bottom.

Step 3 Loosen these screws, and remove the back cover from the system.

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Step 4 Locate the memory module as marked.

Step 5 Hold one side of the module, and insert the gold colored contact into the socket.

Push the module down.

Step 6 The memory module is locked by two latches on the sides.

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NOTE hile uninstalling the Memory Module, you need to stretch these two latches aside,

and then take the module off the socket.

Step 7 Put the cover back to the system, and fasten screws tight close the chassis.

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2.2 Installing the Hard Disk Drive

The eBOX532-100-FL offers a convenient drive bay module for users to install HDD. The
system offers users one 2.5” SATA-600 Hard Disk Drive for installation. Please follow the
steps:

Step 1 Turn off the system, and unplug the AC/DC power cord.
Step 2 Turn the system upside down to locate screws at the bottom.

Step 3 Loosen these screws, and remove the back cover from the system.

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Step 4 HDD assembly parts include:

 HDD Bracket x 1
 2.5 inch HDD x 1
 Screws x 4
 HDD Mylar x1

Screw the 2.5 inch HDD, together with the HDD Mylar, to the HDD bracket.

Step 5 Fix the HDD bracket into the system, and plug the power cable in HDD.

Step 6 Put the cover back to the system, and fasten screws tight close the chassis.

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2.3 Installing the CompactFlashTM Card

Step 1 Turn off the system, and unplug the AC/DC power cord.
Step 2 Turn the system upside down to locate screws at the bottom.

Step 3 Loosen these screws, and remove the back cover from the system.

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Step 4 Locate the CompactFlashTM socket.

Step 5 Insert the CompactFlashTM card into the socket until it is firmly seated.

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Step 6 Put the cover back to the system, and fasten screws tight close the chassis.

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2.4 Installing DIN Mount (optional)

The eBOX532-100-FL provides DIN Mount that customers can install as below:
Step 1 Prepare DIN Mount assembling components (screws and bracket) ready.

MAXIMUM DEPTH OF THE HDD BRACKET: 2.5mm

DEPTH 2.5mm MAX.

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Step 2 Assembly the bracket to the system, and fasten screws tight.

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2.5 Installing Rail Mount

The eBOX532-100-FL provides Rail Mount that customers can install as below:

Step 1 Prepare Rail Mount assembling components (screws and bracket) ready.

Step 2 Assembly the bracket to the system, and fasten screws tight.

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AMI BIOS Setup Utility 23

CHAPTER 3

AMI BIOS Setup Utility

The AMI UEFI BIOS provides users with a built-in setup program to modify basic system
configuration. All configured parameters are stored in a 16MB flash chip to save the setup
information whenever the power is turned off. This chapter provides users with detailed
description about how to set up basic system configuration through the AMI BIOS setup utility.

3.1 Starting

To enter the setup screens, follow the steps below:

1. Turn on the computer and press the <Del> key immediately.

2. After you press the <Del> key, the main BIOS setup menu displays. You can access the

other setup screens from the main BIOS setup menu, such as the Advanced and
Chipset menus.

NOTE If your computer can not boot after making and saving system changes

with Setup, you can restore BIOS optimal defaults by setting JP5 (see
section 2.4.3).

It is strongly recommended that you should avoid changing the chipset’s defaults. Both AMI
and your system manufacturer have carefully set up these defaults that provide the best
performance and reliability.

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24 AMI BIOS Setup Utility

3.2 Navigation Keys

The BIOS setup/utility uses a key-based navigation system called hot keys. Most of the BIOS
setup utility hot keys can be used at any time during the setup navigation process. These
keys include <F1>, <F2>, <Enter>, <ESC>, <Arrow> keys, and so on.

NOTE Some of the navigation keys differ from one screen to another.

Hot Keys

Description

 Left/Right

The Left and Right <Arrow> keys allow you to select a
setup screen.

 Up/Down

The Up and Down <Arrow> keys allow you to select a
setup screen or sub-screen.

+ Plus/Minus

The Plus and Minus <Arrow> keys allow you to change
the field value of a particular setup item.

Tab

The <Tab> key allows you to select setup fields.

F1

The <F1> key allows you to display the General Help
screen.

F2

The <F2> key allows you to Load Previous Values.

F3

The <F3> key allows you to Load Optimized Defaults.

F4

The <F4> key allows you to save any changes you have
made and exit Setup. Press the <F4> key to save your
changes.

Esc

The <Esc> key allows you to discard any changes you
have made and exit the Setup. Press the <Esc> key to
exit the setup without saving your changes.

Enter

The <Enter> key allows you to display or change the
setup option listed for a particular setup item. The
<Enter> key can also allow you to display the setup
sub- screens.

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AMI BIOS Setup Utility 25

3.3 Main Menu

When you first enter the setup utility, you will enter the Main setup screen. You can always
return to the Main setup screen by selecting the Main tab. System Time/Date can be set up
as described below. The Main BIOS setup screen is shown below.

 System Language

Use this item to choose the system default language.

 System Date/Time

Use this option to change the system time and date. Highlight System Time or System
Date using the <Arrow> keys. Enter new values through the keyboard. Press the <Tab>
key or the <Arrow> keys to move between fields. The date must be entered in
MM/DD/YY format. The time is entered in HH:MM:SS format.

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26 AMI BIOS Setup Utility

3.4 Advanced Menu

 Launch PXE OpROM

Use this item to enable or disable the boot ROM function of the onboard LAN chip
when the system boots up.

The Advanced menu also allows users to set configuration of the CPU and other system
devices. You can select any of the items in the left frame of the screen to go to the sub menus:

► ACPI Settings
► CPU Configuration
► IDE Configuration
► USB Configuration
► F81801 Super IO Configuration
► F81801 H/W Monitor

For items marked with “”, please press <Enter> for more options.

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AMI BIOS Setup Utility 27

 ACPI Settings

You can use this screen to select options for the ACPI configuration, and change
the value of the selected option. A description of the selected item appears on the
right side of the screen.

 Enable ACPI Auto Configuration

Use this item to enable or disable BIOS ACPI auto configuration.

 ACPI Sleep State

Default the Advanced Configuration and Power Interface (ACPI) state to be S3
(Suspend to RAM).

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28 AMI BIOS Setup Utility

 CPU Configuration

This screen shows the CPU Configuration, and you can change the value of the
selected option.

 Node 0 Information

View memory information related to Node 0.

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AMI BIOS Setup Utility 29

 IDE Configuration
In the IDE Configuration menu, you can see the currently installed hardware in the SATA

ports. During system boot up, the BIOS automatically detects the presence of SATA devices.

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30 AMI BIOS Setup Utility

 USB Configuration

You can use this screen to select options for the USB Configuration, and change the value of
the selected option. A description of the selected item appears on the right side of the screen.

 Legacy USB Support

Use this item to enable or disable support for USB device on legacy operating system.
The default setting is “Enabled”. Auto option disables legacy support if no USB devices
are connected. Disable option will keep USB devices available only for EFI applications.

 USB transfer time-out

The time-out value for control, bulk and interrupt transfers.

 Device reset time-out

USB mass storage device start unit command time-out.

 Device power-up delay

Maximum time the device will take before it properly reports itself to the host controller.
“Auto” uses default value: for a root port it is 100ms, for a hub port the delay is taken
from hub descriptor.

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AMI BIOS Setup Utility 31

 F81801 Super IO Configuration

 Serial Port Configuration

The configurations of serial port 0~1 are set “Enabled” as default.

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32 AMI BIOS Setup Utility

 F81801 H/W Monitor

This screen monitors hardware health.

This screen displays the CPU temperature, system temperature and system voltages (VIN0,
VIN1 and VBAT).

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AMI BIOS Setup Utility 33

3.5 Chipset Menu

The Chipset menu allows users to change the advanced chipset settings. You can select any
of the items in the left frame of the screen to go to the sub menus:

► North Bridge
► North Bridge LVDS Config Select
► South Bridge

For items marked with “”, please press <Enter> for more options.

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34 AMI BIOS Setup Utility

 North Bridge Configuration

This screen allows users to configure parameters of North Bridge chipset.

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AMI BIOS Setup Utility 35

 Memory Configuration

 Integrated Graphics

The Integrated Graphics controller configuration is set to “Auto”.

 Node 0 Information

This item is to provide user with the information of current using DDR3 SDRAM.

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36 AMI BIOS Setup Utility

 North Bridge LVDS Config Select

 DP0 Output Mode

Use this item to enable or disable LVDS.

 LVDS Panel Config Select

Use this item to select configuration for LVDS panel if DP0 Output Mode is
enabled.

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AMI BIOS Setup Utility 37

 South Bridge

This screen allows users to configure South Bridge chipset. For items marked with
“ ”, please press <Enter> for more options.

► SB SATA Configuration
► SB USB Configuration
► SB HD Azalia Configuration

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38 AMI BIOS Setup Utility

 SB SATA Configuration

Use this item to select option for SATA configuration.

 OnChip SATA Channel

Use this item to enable or disable SATA channel.

 OnChip SATA Type

Here are the options: Native IDE and AHCI.

 OnChip IDE mode

Here are the options: Legacy mode and Native mode.

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AMI BIOS Setup Utility 39

 SB USB Configuration

Use this item to enable or disable all USB devices.

 SB HD Azalia Configuration

This item allows you to enable or disable HD audio Azalia device.

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40 AMI BIOS Setup Utility

3.6 Boot Menu

The Boot menu allows users to change boot options of the system.

 Setup Prompt Timeout

Number of seconds to wait for setup activation key. 65535(0xFFFF) means
indefinite waiting.

 Bootup NumLock State

Use this item to select the power-on state for the NumLock.

 Quiet Boot

Enable or disable Quiet Boot option.

 Fast Boot

Use this item to enable or disable quick boot function. BIOS skips some certain
procedures to decrease time needed for booting up.

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AMI BIOS Setup Utility 41

3.7 Security Menu

The Security menu allows users to change the security settings for the system.

 Administrator Password

This item indicates whether an administrator password has been set (installed
or uninstalled).

 User Password

This item indicates whether an user password has been set (installed or
uninstalled).

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42 AMI BIOS Setup Utility

3.8 Save & Exit Menu

The Save & Exit menu allows users to load your system configuration with optimal or fail-safe
default values.

 Save Changes and Exit

When you have completed the system configuration changes, select this option
to leave Setup and return to Main Menu. Select Save Changes and Exit from the
Save & Exit menu and press <Enter>. Select Yes to save changes and exit.

 Discard Changes and Exit

Select this option to quit Setup without making any permanent changes to the
system configuration and return to Main Menu. Select Discard Changes and Exit
from the Save & Exit menu and press <Enter>. Select Yes to discard changes
and exit.

 Save Changes and Reset

When you have completed the system configuration changes, select this option
to leave Setup and reboot the computer so the new system configuration
parameters can take effect. Select Save Changes and Reset from the Save &
Exit menu and press <Enter>. Select Yes to save changes and reset.

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AMI BIOS Setup Utility 43

 Discard Changes and Reset

Select this option to quit Setup without making any permanent changes to the
system configuration and reboot the computer. Select Discard Changes and
Reset from the Save & Exit menu and press <Enter>. Select Yes to discard
changes and reset.

 Save Changes

When you have completed the system configuration changes, select this option
to save changes. Select Save Changes from the Save & Exit menu and press
<Enter>. Select Yes to save changes.

 Discard Changes

Select this option to quit Setup without making any permanent changes to the
system configuration. Select Discard Changes from the Save & Exit menu and
press <Enter>. Select Yes to discard changes.

 Restore Defaults

It automatically sets all Setup options to a complete set of default settings when
you select this option. Select Restore Defaults from the Save & Exit menu and
press <Enter>.

 Save as User Defaults

Select this option to save system configuration changes done so far as User
Defaults. Select Save as User Defaults from the Save & Exit menu and press
<Enter>.

 Restore User Defaults

It automatically sets all Setup options to a complete set of User Defaults when
you select this option. Select Restore User Defaults from the Save & Exit menu
and press <Enter>.

 Launch EFI Shell from filesystem device

Attempt to launch EFI Shell application (Shellx64.efi) from one of the available
filesystem devices.

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APPENDIX A

Watchdog Timer

About Watchdog Timer

Software stability is major issue in most application. Some embedded systems are not
watched by human for 24 hours. It is usually too slow to wait for someone to reboot when
computer hangs. The systems need to be able to reset automatically when things go wrong.
The watchdog timer gives us solution.

The watchdog timer is a counter that triggers a system reset when it counts down to zero from
a preset value. The software starts counter with an initial value and must reset it periodically.
If the counter ever reaches zero which means the software has crashed, the system will
reboot.

How to Use Watchdog Timer

The I/O port base addresses of watchdog timer are 2E (hex) and 2F (hex). The 2E (hex) and
2F (hex) are address and data port respectively.

Assume that program A is put in a loop that must execute at least once every 10ms. Initialize
watchdog timer with a value bigger than 10ms. If the software has no problems; watchdog
timer will never expire because software will always restart the counter before it reaches zero.

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Begin

Enable and Initialize

Watchdog Timer

Program “A”

Disable Watchdog

Timer

Next

Next

Next

Next

Begin

Enable and Initialize

Watchdog Timer

Program “A”

Reset Watchdog

Timer

Next

Next

Next

Next

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Sample Program

Assembly sample code :

;Enable WDT:

mov dx,2Eh

mov al,87 ;Un-lock super I/O

out dx,al

out dx,al

;Select Logic device:

mov dx,2Eh

mov al,07h

out dx,al

mov dx,2Fh

mov al,07h

out dx,al

;WDT Device Enable:

mov dx,2Eh

mov al,30h

out dx,al

mov dx,2Fh

mov al,01h

out dx,al

;Activate WDT:

mov dx,2Eh

mov al,F0h

out dx,al

mov dx,2Fh

mov al,80h

out dx,al

;Set base timer :

mov dx,2Eh

mov al,0F6h

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out dx,al

mov dx,2Fh

mov al,Mh ;M=00h,01h,...FFh (hex),Value=0 to 255

out dx,al ;(see below

Note

)

;Set Second or Minute :

mov dx,2Eh

mov al,0F5h

out dx,al

mov dx,2Fh

mov al,Nh ;N=71h or 79h(see below

Note

)

out dx,al

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;Disable WDT:

mov dx,2Eh

mov al,30h

out dx,al

mov dx,2Fh

mov al,00h ;Can be disabled at any time

out dx,al

Note:

If N=71h, the time base is set to second.
M = time value

00: Time-out disable
01: Time-out occurs after 1 second
02: Time-out occurs after 2 seconds
03: Time-out occurs after 3 seconds

.FFh: Time-out occurs after 255 seconds
If N=79h, the time base is set to minute.
M = time value

00: Time-out disable
01: Time-out occurs after 1 minute
02: Time-out occurs after 2 minutes
03: Time-out occurs after 3 minutes

.

FFh: Time-out occurs after 255 minutes

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