PICO841
Intel® AtomTM Processor
E3845/E3827 Pico-ITX Board
User’s Manual
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 2015 Axiomtek Co., Ltd.
All Rights Reserved
April 2015, Version A1
Printed in Taiwan
ii
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® and Pentium® are trademarks of Intel Corporation.
Other brand names and trademarks are the properties and registered brands of their
respective owners.
iii
Table of Contents
Disclaimers ..................................................................................................... ii
ESD Precautions ........................................................................................... iii
Chapter 1 Introduction ............................................. 1
1.1 Features ............................................................................................... 2
1.2 Specifications ...................................................................................... 2
1.3 Utilities Supported .............................................................................. 3
Chapter 2 Board and Pin Assignments .................... 5
2.1 Board Dimensions and Fixing Holes ................................................. 5
2.2 Board Layout ....................................................................................... 7
2.3 Assembly Drawing .............................................................................. 9
2.4 Jumper Settings ................................................................................ 12
2.4.1 LVDS Voltage Selection (JP1 and JP2) .................................................... 13
2.4.2 Auto Power On (JP4) ................................................................................ 13
2.4.3 LVDS Brightness Control Mode Setting (JP5) .......................................... 13
2.4.4 Restore BIOS Optimal Defaults (JP6) ....................................................... 13
2.5 Connectors ........................................................................................ 14
2.5.1 Board to Board Connectors (CN1 and CN2) ............................................. 15
2.5.2 Fan Power Connector (CN3) ..................................................................... 16
2.5.3 SMBus Connector (CN4) .......................................................................... 16
2.5.4 Power LED Header (CN6) ......................................................................... 16
2.5.5 External Speaker and Internal Buzzer Header (CN7) ............................... 16
2.5.6 LVDS Connector (CN8) ............................................................................. 17
2.5.7 SATA Power Connector (CN9) .................................................................. 19
2.5.8 Inverter Connector (CN10) ........................................................................ 19
2.5.9 DC Power Connector (CN11) .................................................................... 19
2.5.10 VGA Connector (CN12) ............................................................................. 20
2.5.11 Ethernet Connector (LAN1) ....................................................................... 20
2.5.12 SATA Connector (SATA1) .......................................................................... 21
2.5.13 CMOS Battery Connector (BAT1) ............................................................. 21
2.5.14 Full-size PCI-Express Mini Card and mSATA Connector (SCN1) ............. 22
2.5.15 SIM Card Slot (SCN2) ............................................................................... 23
2.5.16 Half-size PCI-Express Mini Card Connector (SCN3) ................................ 23
Chapter 3 AX93283 I/O Board ................................ 25
3.1 AX93283 Specifications .................................................................... 25
3.2 AX93283 Dimensions and Fixing Holes .......................................... 25
iv
3.3 AX93283 Board Layout ................................................................ ..... 26
3.4 AX93283 Jumper Settings ................................................................ 27
3.4.1 COM1 Data/Power Selection (JP1 and JP2) ............................................ 27
3.5 AX93283 Connectors, Switches and LED ....................................... 28
3.5.1 System Reset Switch (CN1) ...................................................................... 28
3.5.2 Audio Jack (CN2) ...................................................................................... 28
3.5.3 COM1 Connector (CN3) ............................................................................ 29
3.5.4 COM2 Connector (CN4) ............................................................................ 29
3.5.5 System Power Switch (CN5) ..................................................................... 29
3.5.6 Board to Board Connectors (CN9 and CN10) ........................................... 30
3.5.7 USB Connectors (USB1 and USB2) ......................................................... 31
3.5.8 Power and HDD LED Indicator (D1) ......................................................... 31
Chapter 4 AX93267 I/O Board ................................ 33
4.1 AX93267 Specifications .................................................................... 33
4.2 AX93267 Dimensions and Fixing Holes .......................................... 34
4.3 AX93267 Board Layout ................................................................ ..... 35
4.4 AX93267 Connectors ........................................................................ 36
4.4.1 DC Power Jack (CN1) ............................................................................... 36
4.4.2 DC Power Connector (CN2) ...................................................................... 36
4.4.3 VGA Connector (CN3) ............................................................................... 37
4.4.4 D-Sub VGA Connector (CN4) ................................................................... 37
4.4.5 Ethernet Connector (CN5) ........................................................................ 38
4.4.6 RJ-45 Ethernet Port (CN6) ........................................................................ 38
Chapter 5 Hardware Description ........................... 39
5.1 Microprocessors ............................................................................... 39
5.2 BIOS ................................................................................................... 39
5.3 System Memory ................................................................................. 39
5.4 I/O Port Address Map ........................................................................ 40
5.5 Interrupt Controller (IRQ) Map ......................................................... 41
5.6 Memory Map ...................................................................................... 43
Chapter 6 AMI BIOS Setup Utility .......................... 45
6.1 Starting ............................................................................................... 45
6.2 Navigation Keys ................................................................................ 45
6.3 Main Menu .......................................................................................... 46
6.4 Advanced Menu ................................................................................. 47
6.5 Chipset Menu ..................................................................................... 60
6.6 Security Menu .................................................................................... 64
v
6.7 Boot Menu .......................................................................................... 65
6.8 Save & Exit Menu .............................................................................. 66
Appendix A Watchdog Timer ................................... 69
About Watchdog Timer ................................................................................ 69
How to Use Watchdog Timer ....................................................................... 69
Sample Program .......................................................................................... 70
Appendix B Window® 7 Installation Guide ............... 73
vi
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Chapter 1
Introduction
The PICO841 is a Pico-ITX board with Intel® AtomTM E3845/E3827 processors that delivers
outstanding system performance through high-bandwidth interfaces, multiple I/O functions for
interactive applications and various embedded computing solutions.
The board has one 204-pin unbuffered SO-DIMM socket for DDR3L 1333/1066MHz memory,
with maximum memory capacity up to 8GB. It also features one Gigabit/Fast Ethernet, one
SATA port with transfer rates up to 3Gb/s, 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. Moreover, it has one full-size PCI-Express Mini Card and one half-size
PCI-Express Mini Card which provide good expansions for network connecting. Additionally, it
provides you with unique embedded features, such as two serial ports (RS-232/422/485) and
Pico-ITX form factor that applies an extensive array of PC peripherals. The board can be
enhanced by its built-in watchdog timer function, a special industrial feature not commonly
seen on other motherboards.
Introduction 1
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
1.1 Features
Intel
1 DDR3L SO-DIMM supports up to 8GB memory capacity
4 USB 2.0 ports
2 COM ports
1 full-size PCI-Express Mini Card
1 half-size PCI-Express Mini Card
+12V only DC-in supported
®
AtomTM quad core E3845 (1.91GHz), and dual core E3827 (1.75GHz)
1.2 Specifications
CPU
Intel
Intel
Thermal Solution
Fanless but with reserved fan connector.
Operating Temperature
-20°C~70°C
BIOS
American Megatrends Inc. UEFI (Unified Extensible Firmware Interface) BIOS.
16Mbit SPI Flash, DMI, Plug and Play.
PXE Ethernet Boot ROM.
System Memory
One 204-pin unbuffered DDR3L SO-DIMM socket.
Maximum up to 8GB DDR3L 1333/1066MHz memory.
Onboard Multi I/O
Controller: Fintek F81803U
Serial Ports: Two ports for RS-232/422/485.
Serial ATA
One SATA-300 connector.
mSATA supported.
Expansion
One full-size PCI-Express Mini Card socket complies with PCI-Express Mini Card
One half-size PCI-Express Mini Card socket complies with PCI-Express Mini Card
USB Interface
Four USB ports with fuse protection and comply with USB Spec. Rev. 2.0 in pin
Display
One 16-pin VGA wafer connector.
One 2x20-pin connector for 18-bit/24-bit dual channel LVDS and one 8-pin wafer
®
AtomTM quad core E3845 1.91GHz.
®
AtomTM dual core E3827 1.75GHz.
Spec. V1.2.
Spec. V1.2.
headers.
connector for inverter control. LVDS resolution is up to 1920x1200 in 24-bit dual
channels.
2 Introduction
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Note
All specifications and images are subject to change without notice.
Trusted Platform Module (TPM)
Controller: ST ST33TPM12LPC via LPC bus interface.
Complies with TPM1.2 main and PC client specification.
Watchdog Timer
1~255 seconds or minutes; up to 255 levels.
Ethernet
One 16-pin wafer connector.
One port with Intel
®
i211AT supporting 1000/100/10Mbps Gigabit/Fast Ethernet with
Wake-on-LAN and PXE Boot ROM.
Audio
HD audio compliant with Realtek ALC662.
MIC-in and line-out in pin headers.
Power Input
One 1x4-pin wafer connector.
+12V only DC-in.
AT auto power on function supported.
Power Management
ACPI (Advanced Configuration and Power Interface).
Form Factor
Pico-ITX form factor.
1.3 Utilities Supported
Chipset and graphics driver
Ethernet driver
Audio driver
XHCI driver
Trusted Execution Engine
Sideband Fabric Device
Introduction 3
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
This page is intentionally left blank.
4 Introduction
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Board and Pin Assignments
2.1 Board Dimensions and Fixing Holes
Chapter 2
Top View
Board and Pin Assignments 5
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
Bottom View
Side View
6 Board and Pin Assignments
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
2.2 Board Layout
Top View
Board and Pin Assignments 7
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
Bottom View
8 Board and Pin Assignments
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
2.3 Assembly Drawing
Heatsink for PICO841 (see image below):
First of all, use the following four screws to secure heatsink on heatspreader.
x4
Board and Pin Assignments 9
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
For thermal dissipation, a heatspreader enables the PICO841’s components to dissipate heat
efficiently. Images below illustrate how to install the heatspreader.
Installing Heatspreader
The PICO841 has four assembly holes for installing heatspreader plate. Align and firmly
secure the heatspreader plate to the PICO841. Be careful not to over-tighten the screws.
x4 x4 x4 (8mm)
10 Board and Pin Assignments
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Installing Heatspreader and I/O Board
Gently insert I/O board into CN1 and CN2. Align and use the four screws to firmly secure the
heatspreader plate and I/O board to the PICO841. Be careful not to over-tighten the screws.
See chapter 3 and chapter 4 for more details of AX93283 and AX93267 I/O boards.
x4 x2 x2 x4 (8mm)
x2 (7mm) x2
Board and Pin Assignments 11
PICO841 Intel
Note
Once the default jumper needs to be changed, please do it under power-off
condition.
Jumper
Description
Setting
JP1
LVDS +12V Voltage Selection
Default: None
None
JP2
LVDS +3.3V/+5V Voltage Selection
Default: +3.3V
1-2 Close
JP4
Auto Power On
Default: Disable
1-2 Close
JP5
LVDS Brightness Control Mode Setting
Default: PWM Mode
1-2 Close
JP6
Restore BIOS Optimal Defaults
Default: Normal Operation
1-2 Close
®
AtomTM Processor E3845/E3827 Pico-ITX Board
2.4 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. Below illustration
shows how to set up jumper.
Properly configure jumper settings on the PICO841 to meet your application purpose. Below
you can find a summary table of all jumpers and onboard default settings.
12 Board and Pin Assignments
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Function
JP1 Setting
+12V level
Close
N/A
Open
Function
JP2 Setting
+3.3V level (Default)
1-2 close
+5V level
2-3 close
Function
Setting
Disable auto power on (Default)
1-2 close
Enable auto power on
2-3 close
Function
Setting
PWM mode (Default)
1-2 close
Voltage mode
3-4 close
Function
Setting
Normal (Default)
1-2 close
Restore BIOS optimal defaults
2-3 close
2.4.1 LVDS Voltage Selection (JP1 and JP2)
The board supports voltage selection for flat panel displays. Use these jumpers to set
LVDS connector (CN8) pin 1~6 VCCM to +3.3V, +5V or +12V. To prevent hardware
damage, before connecting please make sure that input voltage of flat panel is correct.
JP1
JP2
2.4.2 Auto Power On (JP4)
If this jumper is enabled for power input, the system will be automatically power on
without pressing soft power button. If this jumper is disabled for power input, it is
necessary to manually press soft power button to power on the system.
2.4.3 LVDS Brightness Control Mode Setting (JP5)
This jumper enables you to select PWM or voltage control mode for inverter connector
(CN10). These two control modes are for adjusting the brightness of LVDS panel.
2.4.4 Restore BIOS Optimal Defaults (JP6)
Put jumper clip to pin 2-3 for a few seconds then move it back to pin 1-2. Doing this
procedure can restore BIOS optimal defaults.
Board and Pin Assignments 13
PICO841 Intel
Connector
Description
CN1
20-pin Board to Board Connector
CN2
40-pin Board to Board Connector
CN3
Fan Power Connector
CN4
SMBus Connector
CN6
Power LED Header
CN7
External Speaker and Internal Buzzer Header
CN8
LVDS Connector
CN9
SATA Power Connector
CN10
Inverter Connector
CN11
DC Power Connector
CN12
VGA Connector
LAN1
Ethernet Port
SATA1
SATA Connector
BAT1
CMOS Battery Connector
SCN1
Full-size PCI-Express Mini Card and mSATA Connector
SCN2
SIM Card Slot
SCN3
Half-size PCI-Express Mini Card Connector
SSODIMM1
DDR3L SO-DIMM Socket
®
AtomTM Processor E3845/E3827 Pico-ITX Board
2.5 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.
14 Board and Pin Assignments
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Note
During Windows® 7 installation, the HSIC USB (USB port 2 and 3) can not
be used. Device driver must be installed in advance in order for the HSIC
USB to work properly in Windows® 7.
Note
It is suggested to insert AX93283 I/O board into CN1 and CN2 (see
chapter 3 for details of AX93283).
Pin
Signal
Pin
Signal
1
MIC 2 LINE_OUT_L
3
LINE_IN_L
4
LINE_OUT_R
5
LINE_IN_R
6
GND
7
GND
8
GND
9
GND
10
GND
11
USB1_PWR
12
USB1_PWR
13
USB0_DATA-
14
USB1_DATA-
15
USB0_DATA+
16
USB1_DATA+
17
GND
18
GND
19
GND
20
GND
21
USB2_PWR
22
USB2_PWR
23
USB2_DATA-
24
USB3_DATA-
25
USB2_DATA+
26
USB3_DATA+
27
GND
28
GND
29
GND
30
GND
31
+5V
32
PS_ON
33
RESET
34
GND
35
+5V
36
+12V
37
HDD_LED
38
+12V
39
GND
40
Ni
Pin
Signal
Pin
Signal
1
DCD2
2
DSR2
3
RXD2
4
RTS2
5
TXD2
6
CTS2
7
DTR2
8
RI2
9
GND
10
+5V
11
DCD1
12
DSR1
13
RXD1
14
RTS1
15
TXD1
16
CTS1
17
DTR1
18
RI1
19
GND
20
+5V
2.5.1 Board to Board Connectors (CN1 and CN2)
The pin assignments of CN1 are given as follows.
39 1
40 2
The pin assignments of CN2 are given as follows.
19 1
20 2
Board and Pin Assignments 15
PICO841 Intel
Pin
Signal
1
+5V 2 GND
Pin
Signal
1
SMBus clock
2
SMBus data
3
GND
Pin
Signal
1
+5V
2
GND
Pin
Signal
1
EXT SPK+
2
EXT SPK-
3
Buzzer
®
AtomTM Processor E3845/E3827 Pico-ITX Board
2.5.2 Fan Power Connector (CN3)
This is a JST B2B-ZH-K-S 1.5mm pitch wafer connector for fan power interface.
2 1
2.5.3 SMBus Connector (CN4)
This connector is for SMBus interface. The SMBus (System Management Bus) is a
simple 2-wire bus for the purpose of lightweight communication.
2.5.4 Power LED Header (CN6)
This header is for power LED interface.
2.5.5 External Speaker and Internal Buzzer Header (CN7)
Pin 1, 2 and 3 connect the case-mounted speaker unit or internal buzzer. While
connecting the CPU board to an internal buzzer, please set pin 2 and 3 closed (default);
while connecting to an external speaker, you need to set pins 2 and 3 opened and
connect the speaker cable to pin 1(+) and pin 2(-).
1 3
16 Board and Pin Assignments
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Pin
Signal
Pin
Signal
1
VCCM
2
VCCM
3
VCCM
4
VCCM
5
VCCM
6
VCCM
7
N.C 8 N.C 9 GND
10
GND
11
N.C
12
N.C
13
N.C
14
N.C
15
GND
16
GND
17
N.C
18
N.C
19
N.C
20
N.C
21
GND
22
GND
23
Channel A D0-
24
N.C
25
Channel A D0+
26
N.C
27
GND
28
GND
29
Channel A D1-
30
N.C
31
Channel A D1+
32
N.C
33
GND
34
GND
35
Channel A D2-
36
Channel A CLK-
37
Channel A D2+
38
Channel A CLK+
39
GND
40
GND
2.5.6 LVDS Connector (CN8)
This board has a 2x20-pin connector for LVDS LCD interface. It is strongly
recommended to use the matching JST SHDR-40VS-B connector for LVDS interface.
Pin 1~6 VCCM can be set to +3.3V, +5V or +12V by setting JP2 or JP1 (see section
2.4.1).
18-bit single channel
Board and Pin Assignments 17
PICO841 Intel
Pin
Signal
Pin
Signal
1
VCCM
2
VCCM
3
VCCM
4
VCCM
5
VCCM
6
VCCM
7
N.C 8 N.C
9
GND
10
GND
11
N.C
12
N.C
13
N.C
14
N.C
15
GND
16
GND
17
N.C
18
N.C
19
N.C
20
N.C
21
GND
22
GND
23
Channel A D0-
24
N.C
25
Channel A D0+
26
N.C
27
GND
28
GND
29
Channel A D1-
30
Channel A D3-
31
Channel A D1+
32
Channel A D3+
33
GND
34
GND
35
Channel A D2-
36
Channel A CLK-
37
Channel A D2+
38
Channel A CLK+
39
GND
40
GND
Pin
Signal
Pin
Signal
1
VCCM
2
VCCM
3
VCCM
4
VCCM
5
VCCM
6
VCCM
7
N.C 8 N.C
9
GND
10
GND
11
N.C
12
Channel B D0-
13
N.C
14
Channel B D0+
15
GND
16
GND
17
Channel B CLK-
18
Channel B D1-
19
Channel B CLK+
20
Channel B D1+
21
GND
22
GND
23
Channel A D0-
24
Channel B D2-
25
Channel A D0+
26
Channel B D2+
27
GND
28
GND
29
Channel A D1-
30
N.C
31
Channel A D1+
32
N.C
33
GND
34
GND
35
Channel A D2-
36
Channel A CLK-
37
Channel A D2+
38
Channel A CLK+
39
GND
40
GND
Pin
Signal
Pin
Signal
1
VCCM
2
VCCM
3
VCCM
4
VCCM
5
VCCM
6
VCCM
7
N.C
8
N.C
9
GND
10
GND
11
Channel B D3-
12
Channel B D0-
13
Channel B D3+
14
Channel B D0+
15
GND
16
GND
17
Channel B CLK-
18
Channel B D1-
19
Channel B CLK+
20
Channel B D1+
21
GND
22
GND
23
Channel A D0-
24
Channel B D2-
25
Channel A D0+
26
Channel B D2+
27
GND
28
GND
29
Channel A D1-
30
Channel A D3-
31
Channel A D1+
32
Channel A D3+
33
GND
34
GND
35
Channel A D2-
36
Channel A CLK-
37
Channel A D2+
38
Channel A CLK+
39
GND
40
GND
®
AtomTM Processor E3845/E3827 Pico-ITX Board
24-bit single channel 18-bit dual channel
24-bit dual channel
18 Board and Pin Assignments
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Pin
Signal
1
+12V
2
GND
3
GND
4
+5V
Pin
Signal
1
VBL1 (+12V level)
2
VBL1 (+12V level)
3
VBL2 (+5V level)
4
VBL_ENABLE
5
GND
6
GND
7
GND
8
VBL Brightness Control
Pin
Signal
1
+12V
2
+12V
3
GND
4
GND
2.5.7 SATA Power Connector (CN9)
The CN9 is JST B4B-PH-K-S 4-pin 2.0mm pitch wafer connector for SATA power
interface.
2.5.8 Inverter Connector (CN10)
This is a Hirose DF13-8S-1.25C 8-pin connector for inverter. We strongly recommend
you to use the matching DF13-8S-1.25C connector to avoid malfunction.
2.5.9 DC Power Connector (CN11)
This is a JST B4B-XH 4-pin 2.5mm pitch wafer connector for DC +12V input. It is
suggested to connect this CN11 to AX93267 I/O board’s CN2.
Board and Pin Assignments 19
PICO841 Intel
Pin
Signal
1
RSVD
2
RED
3
GND
4
GREEN
5
GND
6
BLUE
7
GND
8
VCC
9
DDC_DATA
10
GND
11
GND
12
HSYNC
13
GND
14
VSYNC
15
DDC_CLK
16
GND
Pin
Signal
1
1000 LAN LED
2
100 LAN LED
3
GND
4
MDI3-
5
MDI3+
6
MDI1-
7
MDI2-
8
MDI2+
9
MDI1+
10
MDI0-
11
MDI0+
12
GND
13
LAN_VDD33
14
LAN_LINK_ACT
15
GND
16
GND
®
AtomTM Processor E3845/E3827 Pico-ITX Board
2.5.10 VGA Connector (CN12)
This is a JST BM16B-SRSS-TB 16-pin wafer connector for VGA interface. Gently
connect this CN12 to AX93267 I/O board’s CN3.
2.5.11 Ethernet Connector (LAN1)
This is a JST BM16B-SRSS-TB 16-pin wafer connector for Ethernet interface. Gently
connect this LAN1 to AX93267 I/O board’s CN5.
20 Board and Pin Assignments
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Pin
Signal
1
GND
2
TXP
3
TXN
4
GND
5
RXN
6
RXP
7
GND
Pin
Signal
1
+3.3V
2
GND
1 7
2.5.12 SATA Connector (SATA1)
This Serial Advanced Technology Attachment (Serial ATA or SATA) connector is for
high-speed SATA interface. It is a computer bus interface for connecting to devices such
as hard disk drives.
2.5.13 CMOS Battery Connector (BAT1)
This connector is for CMOS battery interface.
Board and Pin Assignments 21
PICO841 Intel
Pin
Signal
Pin
Signal
1
WAKE#
2
+3.3V_SBY
3
No use
4
GND
5
No use
6
+V1.5S
7
CLKREQ#
8
SIM PWR
9
GND
10
SIM I/O
11
CLK_PICE_ N
12
SIM CLK
13
CLK_PICE_ P
14
SIM RST
15
GND
16
SIM VPP
17
No use
18
GND
19
No use
20
+3.3V_SBY
21
GND
22
PLTRST
23
mSATA_RXP
/PCIE_RXN
24
+3.3V_SBY
25
mSATA_RXN
/PCIE_RXP
26
GND
27
GND
28
+V1.5S
29
GND
30
SMB_CLK
31
mSATA_TXN
/PCIE_TXN
32
SMB_DATA
33
mSATA_TXP
/PCIE_TXP
34
GND
35
GND
36
USB_PN2
37
GND
38
USB_PP2
39
+3.3V_SBY
40
GND
41
+3.3V_SBY
42
No use
43
GND
44
No use
45
No use
46
No use
47
No use
48
+V1.5S
49
No use
50
GND
51
No use
52
+3.3V_SBY
®
AtomTM Processor E3845/E3827 Pico-ITX Board
2.5.14 Full-size PCI-Express Mini Card and mSATA Connector
(SCN1)
This is a full-size PCI-Express Mini Card connector on the bottom side complying with
PCI-Express Mini Card Spec. V1.2. It supports either PCI-Express, USB 2.0 or SATA
(mSATA). Since the default setting is mSATA, if the PCI-Express Mini Card is needed to
insert, please refer to section 6.4 to change the setting.
SCN1
22 Board and Pin Assignments
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Pin
Signal
1
SIM PWR
2
SIM RST
3
SIM CLK
4
NC 5 GND
6
SIM VPP
7
SIM I/O
8
NC
Pin
Signal
Pin
Signal
1
WAKE#
2
+3.3V_SBY
3
No use
4
GND
5
No use
6
+V1.5S
7
CLKREQ#
8
SIM PWR
9
GND
10
SIM I/O
11
CLK_PICE_ N
12
SIM CLK
13
CLK_PICE_ P
14
SIM RST
15
GND
16
SIM VPP
17
No use
18
GND
19
No use
20
+3.3V_SBY
21
GND
22
PLTRST
23
PCIE_RXN1
24
+3.3V_SBY
25
PCIE_RXP1
26
GND
27
GND
28
+V1.5S
29
GND
30
SMB_CLK
31
PCIE_TXN1
32
SMB_DATA
33
PCIE_TXP1
34
GND
35
GND
36
USB_PN3
37
GND
38
USB_PP3
39
+3.3V_SBY
40
GND
41
+3.3V_SBY
42
No use
43
GND
44
No use
45
No use
46
No use
47
No use
48
+V1.5S
49
No use
50
GND
51
No use
52
+3.3V_SBY
2.5.15 SIM Card Slot (SCN2)
The SCN2 on the bottom side is for inserting SIM Card. It is mainly used in 3G wireless
network application. In order to work properly, the SIM Card must be used together with
Mini Card which is inserted to SCN1 or SCN3.
2.5.16 Half-size PCI-Express Mini Card Connector (SCN3)
This is a half-size PCI-Express Mini Card connector on the bottom side complying with
PCI-Express Mini Card Spec. V1.2. It supports either PCI-Express or USB 2.0.
SCN3
Board and Pin Assignments 23
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
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24 Board and Pin Assignments
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Note
All specifications and images are subject to change without notice.
Chapter 3
AX93283 I/O Board
The AX93283 is an I/O expansion board which is suggested to insert carefully into CN1 and
CN2 of PICO841. Its specifications and detailed information are given in this chapter.
3.1 AX93283 Specifications
Size
29.25mm x 118mm
Features
Supports audio jack (MIC-in/line-out).
Four USB 2.0.
Serial ports: Two ports for RS-232/422/485.
Power-on, reset and red/green LED.
3.2 AX93283 Dimensions and Fixing Holes
Top View
AX93283 I/O Board 25
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
Bottom View
3.3 AX93283 Board Layout
Top View
Side View
26 AX93283 I/O Board
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Note
Once the default jumper setting needs to be changed, please do it under power-off
condition.
Jumper
Description
Setting
JP1
COM1 Data/+12V Power Selection
Default: RS-232 Data
CN3 Pin 18: RI
1-2 Close
JP2
COM1 Data/+5V Power Selection
Default: RS-232 Data
CN3 Pin 10: DCD
1-2 Close
Function
JP1 Setting
Data: Set CN3 pin 18 to RI (Default)
1-2 close
Power: Set CN3 pin 18 to +12V level
2-3 close
Function
JP2 Setting
Data: Set CN3 pin 10 to DCD (Default)
1-2 close
Power: Set CN3 pin 10 to +5V level
2-3 close
3.4 AX93283 Jumper Settings
Properly configure jumper settings on the AX93283 I/O board to meet your application purpose.
Below you can find a summary table of all jumpers and onboard default settings.
3.4.1 COM1 Data/Power Selection (JP1 and JP2)
The COM1 port has +12V level power capability on RI and +5V level on DCD by setting
JP1 and JP2, respectively. When this port is set to +12V or +5V level, please make sure
its communication mode is RS-232 (see section 6.4).
AX93283 I/O Board 27
PICO841 Intel
Connector/Switch/LED
Description
CN1
System Reset Switch
CN2
Audio Jack
CN3
COM1 Connector
CN4
COM2 Connector
CN5
System Power Switch
CN9
40-pin Board to Board Connector
CN10
20-pin Board to Board Connector
USB1~USB2
USB 2.0 Connectors
D1
Power and HDD LED indicator
Function
Description
On
Reset system
Off
Keep system status
Pin Color
Signal
Green
Line-out
Pink
MIC-in
®
AtomTM Processor E3845/E3827 Pico-ITX Board
3.5 AX93283 Connectors, Switches and LED
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, switches and LED on the hardware.
3.5.1 System Reset Switch (CN1)
This switch reboots your computer without turning off the power supply. It is a better way
to reboot your system for a longer life of the system power supply.
3.5.2 Audio Jack (CN2)
This is audio jack with HD audio support. Install audio driver, and then attach audio
devices to CN2.
28 AX93283 I/O Board
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
CN3
CN4
Pin
RS-232
RS-422
RS-485
10
DCD
TX-
Data-
11
RXD
TX+
Data+
12
TXD
RX+
N.C
13
DTR
RX-
N.C.
14
GND
No use
No use
15
DSR
No use
No use
16
RTS
No use
No use
17
CTS
No use
No use
18
RI
No use
No use
Pin
RS-232
RS-422
RS-485
1
DCD
TX-
Data-
2
RXD
TX+
Data+
3
TXD
RX+
N.C 4 DTR
RX-
N.C.
5
GND
No use
No use
6
DSR
No use
No use
7
RTS
No use
No use
8
CTS
No use
No use
9
RI
No use
No use
Function
Description
On
Turn on/off system
Off
Keep system status
3.5.3 COM1 Connector (CN3)
CN3 is the lower connector of the double-deck DB-9 connector. Only COM1 comes with
power capability on DCD and RI pins by setting jumpers (see section 3.4.1). The pin
assignments of RS-232/422/485 are listed in table below. If you need COM1 port to
support RS-422 or RS-485, please refer to section 6.4.
3.5.4 COM2 Connector (CN4)
CN4 is the upper connector of the double-deck DB-9 connector. The pin assignments of
RS-232/422/485 are listed in table below. If you need COM2 port to support RS-422 or
RS-485, please refer to section 6.4.
3.5.5 System Power Switch (CN5)
This switch is for turning on/off the system power.
AX93283 I/O Board 29
PICO841 Intel
Pin
Signal
Pin
Signal
1
MIC 2 LINE_OUT_L
3
LINE_IN_L
4
LINE_OUT_R
5
LINE_IN_R
6
GND
7
GND
8
GND
9
GND
10
GND
11
USB1_PWR
12
USB1_PWR
13
USB0_DATA-
14
USB1_DATA-
15
USB0_DATA+
16
USB1_DATA+
17
GND
18
GND
19
GND
20
GND
21
USB2_PWR
22
USB2_PWR
23
USB2_DATA-
24
USB3_DATA-
25
USB2_DATA+
26
USB3_DATA+
27
GND
28
GND
29
GND
30
GND
31
+5V
32
PS_ON
33
RESET
34
GND
35
+5V
36
+12V
37
HDD_LED
38
+12V
39
GND
40
Ni
®
AtomTM Processor E3845/E3827 Pico-ITX Board
3.5.6 Board to Board Connectors (CN9 and CN10)
The pin assignments of CN9 are given as follows.
1 39
2 40
30 AX93283 I/O Board
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Note
Please gently insert CN9 and CN10 into CN2 and CN1 of PICO841.
1 2 3 4
5 6 7 8
Pin
Signal
Pin
Signal
1
DCD2
2
DSR2
3
RXD2
4
RTS2
5
TXD2
6
CTS2
7
DTR2
8
RI2 9 GND
10
+5V
11
DCD1
12
DSR1
13
RXD1
14
RTS1
15
TXD1
16
CTS1
17
DTR1
18
RI1
19
GND
20
+5V
Pin
Signal
Pin
Signal
1
+5V 5 +5V 2 USB1/3_DATA-
6
USB2/4_DATA-
3
USB1/3_DATA+
7
USB2/4_DATA+
4
GND
8
GND
LED Color
Description
Red
Hard disk drive activity
Green
Power on/off
The pin assignments of CN10 are given as follows.
1 19
2 20
3.5.7 USB Connectors (USB1 and USB2)
The board comes with two double-deck Universal Serial Bus (compliant with USB 2.0
(480Mbps)) connectors on the rear I/O which are for installing USB peripherals such as
keyboard, mouse, scanner, etc.
3.5.8 Power and HDD LED Indicator (D1)
The red LED is linked to Hard Disk Drive (HDD) activity signal. LED flashes every time
HDD is accessed.
The power LED (green) lights up and will remain steady while the system is powered on.
AX93283 I/O Board 31
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
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32 AX93283 I/O Board
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Note
All specifications and images are subject to change without notice.
Chapter 4
AX93267 I/O Board
The AX93267 is an I/O expansion board which is suggested to insert carefully into CN1 and
CN2 of PICO841. Its specifications and detailed information are given in this chapter.
4.1 AX93267 Specifications
Size
29.25mm x 118mm
Features
One D-Sub VGA port
One RJ-45 Ethernet port.
DC power jack.
AX93267 I/O Board 33
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
4.2 AX93267 Dimensions and Fixing Holes
Top View
Side View
34 AX93267 I/O Board
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
4.3 AX93267 Board Layout
Top View
Side View
AX93267 I/O Board 35
PICO841 Intel
Connector
Description
CN1
DC Power Jack
CN2
DC Power Connector
CN3
VGA Connector
CN4
D-Sub VGA Connector
CN5
Ethernet Connector
CN6
RJ-45 Ethernet Port
Pin
Signal
1
GND
2
GND
3
+12V
4
+12V
Pin
Signal
1
+12V
2
+12V
3
GND
4
GND
®
AtomTM Processor E3845/E3827 Pico-ITX Board
4.4 AX93267 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.
4.4.1 DC Power Jack (CN1)
The CN1 is a DC power jack for DC +12V input.
4.4.2 DC Power Connector (CN2)
This is a 1x4-pin wafer connector for DC +12V. It is suggested to connect the CN2 to
PICO841’s CN11.
36 AX93267 I/O Board
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Pin
Signal
1
RSVD
2
RED
3
GND
4
GREEN
5
GND
6
BLUE
7
GND
8
VCC
9
DDC_DATA
10
GND
11
GND
12
HSYNC
13
GND
14
VSYNC
15
DDC_CLK
16
GND
Pin
Signal
Pin
Signal
1
RED
2
GREEN
3
BLUE
4
N.C 5 GND
6
CRT_DETE
7
GND
8
GND
9
CRT_VCC
10
GND
11
N.C
12
DDC_DATA
13
HSYNC
14
VSYNC
15
DDC_CLK
4.4.3 VGA Connector (CN3)
This is a 16-pin wafer connector for VGA interface. Gently connect this CN3 to
PICO841’s CN12.
4.4.4 D-Sub VGA Connector (CN4)
The CN4 is a standard 15-pin D-Sub connector. It is commonly used for VGA display.
This VGA interface configuration can be configured via software utility.
AX93267 I/O Board 37
PICO841 Intel
Pin
Signal
1
1000 LAN LED
2
100 LAN LED
3
GND
4
MDI3-
5
MDI3+
6
MDI1-
7
MDI2-
8
MDI2+
9
MDI1+
10
MDI0-
11
MDI0+
12
GND
13
LAN_VDD33
14
LAN_LINK_ACT
15
GND
16
GND
Pin
Signal
Pin
Signal
L1
MDI0P
L5
MDI2P
L2
MDI0N
L6
MDI2N
L3
MDI1P
L7
MDI3P
L4
MDI1N
L8
MDI3N
A
Active LED (Yellow)
B
1000 LAN LED (Orange) / 100 LAN LED
(Green)
®
AtomTM Processor E3845/E3827 Pico-ITX Board
4.4.5 Ethernet Connector (CN5)
This is a 16-pin wafer connector for Ethernet interface. Gently connect this CN5 to
PICO841’s LAN1.
4.4.6 RJ-45 Ethernet Port (CN6)
This board has one RJ-45 Ethernet connector. Connection can be established by
plugging one end of the Ethernet cable into this RJ-45 connector and the other end
(phone jack) to a 1000/100/10-Base-T hub.
38 AX93267 I/O Board
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Chapter 5
Hardware Description
5.1 Microprocessors
The PICO841 supports Intel® AtomTM E3845/E3827 processors, which enable your system to
operate under Windows® 7 environments. The system performance depends on the
microprocessor. Make sure all correct settings are arranged for your installed microprocessor
to prevent the CPU from damages.
5.2 BIOS
The PICO841 uses AMI Plug and Play BIOS with a single 16Mbit SPI Flash.
5.3 System Memory
The PICO841 supports one 204-pin DDR3L SO-DIMM socket for maximum memory capacity
up to 8GB DDR3L SDRAMs. The memory module comes in sizes of 1GB, 2GB, 4GB and 8GB.
Hardware Description 39
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
5.4 I/O Port Address Map
The Intel® AtomTM E3845/E3827 processors communicate via I/O ports.
40 Hardware Description
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
5.5 Interrupt Controller (IRQ) Map
The interrupt controller (IRQ) mapping list is shown as follows:
Hardware Description 41
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
42 Hardware Description
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
5.6 Memory Map
The memory mapping list is shown as follows:
Hardware Description 43
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
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44 Hardware Description
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Note
If your computer cannot boot after making and saving system changes with BIOS
setup, you can restore BIOS optimal defaults by setting JP6 (see section 2.4.4).
Note
Some of the navigation keys differ from one screen to another.
Chapter 6
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 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.
6.1 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.
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.
6.2 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.
AMI BIOS Setup Utility 45
PICO841 Intel
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.
®
AtomTM Processor E3845/E3827 Pico-ITX Board
6.3 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.
46 AMI BIOS Setup Utility
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
System Language
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.
Access Level
Display the access level of current user.
6.4 Advanced Menu
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
► F81803 Super IO Configuration
► F81803 HW Monitor
► CPU Configuration
► IDE Configuration
► Miscellaneous Configuration
► Trusted Computing
► USB Configuration
For items marked with “”, please press <Enter> for more options.
AMI BIOS Setup Utility 47
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
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.
ACPI Sleep State
Select the ACPI (Advanced Configuration and Power Interface) sleep state. Configuration
options are Suspend Disabled and S3 (Suspend to RAM). The default setting is S3
(Suspend to RAM); this option selects ACPI sleep state the system will enter when
suspend button is pressed.
48 AMI BIOS Setup Utility
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
F81803 Super IO Configuration
You can use this screen to select options for the Super IO Configuration, and change the
value of the selected option. A description of the selected item appears on the right side of
the screen. For items marked with “”, please press <Enter> for more options.
Serial Port 1~2 Configuration
Set parameters related to serial port 1~2.
AMI BIOS Setup Utility 49
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
Serial Port 1 Configuration
Serial Port
Enable or disable serial port 1. The optimal setting for base I/O address is 3F8h and for
interrupt request address is IRQ4.
COM Port Type
Use this option to set RS-232/422/485 communication mode.
50 AMI BIOS Setup Utility
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
Serial Port 2 Configuration
Serial Port
Enable or disable serial port 2. The optimal setting for base I/O address is 2F8h and for
interrupt request address is IRQ3.
COM Port Type
Use this option to set RS-232/422/485 communication mode.
AMI BIOS Setup Utility 51
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
F81803 HW Monitor
This screen monitors hardware health status.
This screen displays the temperature of system and CPU, system voltages (VCORE and
+5V).
52 AMI BIOS Setup Utility
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
CPU Configuration
This screen shows the CPU Configuration, and you can change the value of the selected
option.
Socket 0 CPU Information
This item is for CPU information.
Intel Virtualization Technology
Enable or disable Intel Virtualization Technology. When enabled, a VMM (Virtual Machine
Mode) can utilize the additional hardware capabilities. It allows a platform to run multiple
operating systems and applications independently, hence enabling a computer system to
work as several virtual systems.
AMI BIOS Setup Utility 53
PICO841 Intel
®
AtomTM Processor E3845/E3827 Pico-ITX Board
Socket 0 CPU Information
This screen shows CPU Information.
54 AMI BIOS Setup Utility
PICO841 Intel® AtomTM Processor E3845/E3827 Pico-ITX Board
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.
Serial-ATA (SATA)
Enable or disable the SATA Controller feature. The default is Enabled.
SATA Mode
Determine how SATA controller(s) operate. Operation mode options are IDE Mode and
AHCI (Advanced Host Controller Interface) Mode. The default is AHCI Mode.
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Serial-ATA Port 0~1
Enable or disable the onboard SATA port 0~1.
MiniCard Switch
This option appears only after SATA Port 1 is enabled. The default is mSATA. If the
PCI-Express Mini Card via PCI-Express interface is needed to insert to SCN1 (see section
2.5.14), please change setting to PCIE.
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Miscellaneous Configuration
OS Selection
Use this item to select Windows® 8.x or Windows® 7 operating system. The default is
Windows® 8.x.
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Trusted Computing
This screen provides function for specifying the TPM settings.
Security Device Support
Enable or disable BIOS support for security device. The default setting is Disabled.
TPM State
Once the Security Device Support is Enabled, TPM can be used by the operating system.
Current Status Information
Display current TPM status information.
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USB Configuration
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USB Devices
Display all detected USB devices.
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.
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6.5 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
► South Bridge
For items marked with “”, please press <Enter> for more options.
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North Bridge
This screen allows users to configure parameters of North Bridge chipset.
Memory Information
Show the information related to system memory.
LVDS Panel Type
Select LVDS panel resolution; see the selection options in image above.
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South Bridge
This screen allows users to configure parameters of South Bridge chipset.
USB Configuration
This item is for USB configuration settings.
Audio Controller
Control detection of the audio device.
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South Bridge – USB Configuration
XHCI Mode
When Advanced\Miscellaneous Configuration\OS Selection is set to Windows® 8.x, XHCI
mode is Enabled.
Meanwhile, when Advanced\Miscellaneous Configuration\OS Selection is set to Windows®
7, XHCI mode is Smart Auto.
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6.6 Security Menu
The Security menu allows users to change the security settings for the system.
Administrator Password
Set administrator password.
User Password
Set user password.
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6.7 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 keyboard NumLock.
Quiet Boot
Select to display either POST output messages or a splash screen during boot-up.
Legacy PXE OpROM
Enable or disable the Preboot eXecution Environment (PXE) boot ROM function of the
onboard LAN chip during system boots up.
Boot Option Priorities [Boot Option #1, #2…]
These are settings for boot priority. Specify the boot device priority sequence from the
available devices.
Hard Drive BBS Priorities
Set the boot order of the specific devices in this group. This option appears only if at least
one device of this group is detected.
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6.8 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.
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.
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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>.
Boot Override
Select a drive to immediately boot that device regardless of the current boot order.
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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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
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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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
;Enable WDT base address:
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,0F0h
out dx,al
mov dx,2Fh
mov al,80h
out dx,al
;Set base timer :
mov dx,2Eh
mov al,0F6h
out dx,al
mov dx,2Fh
mov al,Mh ;M=00h,01h,...FFh (hex),Value=0 to 255
out dx,al ;(see below
;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
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
Note
)
Note
)
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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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Appendix B
Window® 7 Installation Guide
Before you install Windows® 7, please follow the instructions below:
1. Enter BIOS setup utility, and ensure that Advanced\Miscellaneous Configuration\OS
Selection option is set to Windows® 7 (see section 6.4).
2. After that, go to Chipset\South Bridge to verify that XHCI Mode is Smart Auto.
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3. Save changes and exit BIOS utility.
4. Reboot and you may begin to install Windows® 7 on your computer. But please note that
during installation, only the two USB ports (pin 13~16) at CN2 and USB1 at AX93283 can
be used.
5. After Windows® 7 installation is complete, install XHCI driver
(Intel_USB_3.0_xHC_Driver_3.0.4.65_MR4_PV) from the product information CD. After
installing driver, all of the four USB ports can work properly.
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