Axiomtek PICO841 User Manual
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
Loading...