AXIOMTEK PICO312 User manual

PICO312
Intel®Pentium®N4200/ Celeron®
N3350 Processor Pico-ITX Board
User’s Manual

ii
Disclaimers
This manual has been carefully checked and believed to contain accurate information.
Axiomtek Co., Ltd. assumes no responsibility for any infringements of patents or any third
party’s rights, and any liability arising from such use.
Axiomtek does not warrant or assume any legal liability or responsibility for the accuracy,
completeness or usefulness of any information in this document. Axiomtek does not make any
commitment to update the information in this manual.
Axiomtek reserves the right to change or revise this document and/or product at any time
without notice.
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
without the prior written permission of Axiomtek Co., Ltd.
CAUTION
If you replace wrong batteries, it causes the danger of explosion. It is recommended by the
manufacturer that you follow the manufacturer’s instructions to only replace the same or
equivalent type of battery, and dispose of used ones.
Copyright 2018 Axiomtek Co., Ltd.
All Rights Reserved
June 2018, Version A2
Printed in Taiwan

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

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Table of Contents
Disclaimers.....................................................................................................ii
ESD Precautions...........................................................................................iii
Chapter 1 Introduction............................................. 1
1.1 Features...............................................................................................2
1.2 Specifications......................................................................................2
1.3 Utilities.................................................................................................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 and Switch Settings ............................................................11
2.4.1 LVDS +3.3V/+5V/+12V Voltage Selection (JP2)....................................... 12
2.4.2 Restore BIOS Optimal Defaults (JP3)....................................................... 12
2.4.3 Auto Power On (SW1)............................................................................... 12
2.5 Connectors........................................................................................13
2.5.1 Board to Board Connectors (CN2 and CN3)............................................. 14
2.5.2 Fan Power Connector (CN4)..................................................................... 16
2.5.3 LVDS Connector (CN5)............................................................................. 16
2.5.4 USB 2.0 Wafer Connector (CN6).............................................................. 18
2.5.5 Inverter Connector (CN7).......................................................................... 18
2.5.6 SATAPower Connector (CN8).................................................................. 18
2.5.7 SMBus Connector (CN9) .......................................................................... 18
2.5.8 Front Panel Connector (CN10) ................................................................. 19
2.5.9 DC Jack Power Connector w/ Screw (CN12) ........................................... 19
2.5.10 HDMI Connector (CN13)........................................................................... 20
2.5.11 I2C Connector (CN14) .............................................................................. 20
2.5.12 VGA Connector (CN15)............................................................................. 20
2.5.13 CMOS Battery Connector (BAT1) ............................................................. 21
2.5.14 Ethernet Port (LAN1)................................................................................. 21
2.5.15 SATA Connector (SSATA1) ....................................................................... 21
2.5.16 Full-size PCI-Express Mini Card and mSATAConnector (SCN1)............. 22
Chapter 3 Hardware Description ........................... 23
3.1 Microprocessors ...............................................................................23
3.2 BIOS ...................................................................................................23

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3.3 System Memory.................................................................................23
3.4 I/O Port Address Map........................................................................24
3.5 Interrupt Controller (IRQ) Map .........................................................25
3.6 Memory Map ......................................................................................31
Chapter 4 AMI BIOS Setup Utility .......................... 33
4.1 Starting...............................................................................................33
4.2 Navigation Keys ................................................................................33
4.3 Main Menu..........................................................................................35
4.4 Advanced Menu.................................................................................36
4.5 Chipset Menu.....................................................................................49
4.6 Security Menu....................................................................................51
4.7 Boot Menu..........................................................................................52
4.8 Save & Exit Menu ..............................................................................57
Appendix A Watchdog Timer................................... 59
A.1 About Watchdog Timer.....................................................................59
A.2 How to Use Watchdog Timer............................................................59
Appendix B BIOS Flash Utility ................................ 61

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PICO312 Pico-ITX Board
Introduction 1
Chapter 1
Introduction
The PICO312 is a Pico-ITX board with Intel®Pentium®N4200/ Celeron®N3350 processor that
deliver 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 1867MHz SO-DIMM
memory with maximum capacity up to 8GB. It also features one Gigabit/Fast Ethernet, one
SATAport with transfer rates up to 6Gb/s, one USB 2.0 high speed compliant, and built-in high
definition audio codec that can achieve the best stability and reliability for industrial
applications. The board can be enhanced by its built-in watchdog timer function, a special
industrial feature not commonly seen on other motherboards.

PICO312 Pico-ITX Board
2 Introduction
1.1 Features
Intel®Pentium®N4200 and Celeron®N3350 processors
1 DDR3L SO-DIMM supports up to 8GB memory capacity
1 USB 2.0 port and 1 Gigabit Ethernet port
1 PCI-Express Mini Card with mSATA supported
1.2 Specifications
CPU
Intel®Pentium®N4200 1.1GHz quad core.
Intel®Celeron®N3350 1.1GHz dual core.
Thermal Solution
Passive.
BIOS
American Megatrends Inc. UEFI (Unified Extensible Firmware Interface) BIOS.
64Mbit 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 1867MHz memory.
Serial ATA
One SATA-600 connector.
mSATA support
USB Interface
One USB port with fuse protection and complies with USB Spec. Rev. 2.0.
Display
A standard 15-pin D-Sub VGA connector which is co-layout with a HDMI connector.
The HDMI resolution is up to 1920x1080. The VGA resolution is up to 1920x1200.
One 2x20-pin connector for 18/24-bit single and dual channel LVDS and one 8-pin
wafer connector for inverter control. LVDS resolution is up to 1920x1200 in 24-bit
dual channel.
Watchdog Timer
1~65536 seconds or minutes; up to 65535 levels.
Ethernet
One 1000/100/10Mbps Gigabit/Fast Ethernet port in RJ-45 connector.
Support Wake-on-LAN, PXE Boot ROM with Intel®i211AT.

PICO312 Pico-ITX Board
Introduction 3
Expansion Interface
One PCI-Express Mini Card socket complies with PCI-Express Mini Card Spec.
V1.2.
One board to board connector (high speed signal).
One board to board connector (low speed signal).
Power Input
DC jack power connector, co-layout with 1x2-pin right angle connector.
+12V DC-in only.
AT auto power on function supported.
Power Management
ACPI (Advanced Configuration and Power Interface).
Form Factor
Pico-ITX form factor.
Note
All specifications and images are subject to change without notice.
1.3 Utilities
Chipset and graphics driver
Intel®Trusted Execution Engine (Intel®TXE) driver
Ethernet driver (i211AT)
Audio driver

PICO312 Pico-ITX Board
4 Introduction
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PICO312 Pico-ITX Board
Board and Pin Assignments 5
Chapter 2
Board and Pin Assignments
2.1 Board Dimensions and Fixing Holes
Top View

PICO312 Pico-ITX Board
6 Board and Pin Assignments
Bottom View
Side View

PICO312 Pico-ITX Board
Board and Pin Assignments 7
2.2 Board Layout
Top View
Side View

PICO312 Pico-ITX Board
8 Board and Pin Assignments
Bottom View

PICO312 Pico-ITX Board
Board and Pin Assignments 9
2.3 Assembly Drawing
For thermal dissipation, a thermal solution enables the PICO312’s components to dissipate
heat efficiently. All heat generating components are thermally conducted to the heatspreader in
order to avoid hot spots. Images below illustrate how to install the thermal solution on
PICO312.
1. Heatsink for PICO312 (see image below):
2. First of all, use the following four screws to secure heatsink on heatspreader.
x4
3. The PICO312 has four assembly holes for installing thermal solution. Align and firmly
secure the plate to the PICO312. Be careful not to over-tighten the screws.
x4 x4 x4 (8mm)

PICO312 Pico-ITX Board
10 Board and Pin Assignments

PICO312 Pico-ITX Board
Board and Pin Assignments 11
2.4 Jumper and Switch 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 and switch settings on the PICO312 to meet your application
purpose. Below you can find a summary table of jumpers, switch and onboard default settings.
Note
Once the default jumper or switch setting needs to be changed, please do it under
power-off condition.
Jumper and Switch
Description
Setting
JP2
LVDS +3.3V/+5V/+12V Voltage Selection
Default: +3.3V
1-2 Close
JP3
Restore BIOS Optimal Defaults
Default: Normal Operation
1-2 Close
SW1
Auto Power On
Default: Enable
2-3 Close

PICO312 Pico-ITX Board
12 Board and Pin Assignments
2.4.1 LVDS +3.3V/+5V/+12V Voltage Selection (JP2)
The board supports voltage selection for flat panel displays. Use these jumpers to set
LVDS connector (CN5) pin 1~6 +DVCCM1 to +3.3V, +5V or +12V. To prevent hardware
damage, before connecting please make sure that the input voltage of flat panel is
correct.
2.4.2 Restore BIOS Optimal Defaults (JP3)
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.
2.4.3 Auto Power On (SW1)
If SW1 is enabled for power input, the system will be automatically power on without
pressing soft power button. If SW1 is disabled for power input, it is necessary to
manually press soft power button to power on the system.
Function
Setting
+3.3V level (Default)
1-2 close
+5V level
2-4 close
+12V level
5-6 close
Function
Setting
Normal (Default)
1-2 close
Restore BIOS optimal defaults
2-3 close
Function
Setting
Disable auto power on
1-2 close
Enable auto power on (Default)
2-3 close

PICO312 Pico-ITX Board
Board and Pin Assignments 13
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.
Connector
Description
CN2
Board to Board Connector 1 (Low Speed Signal)
CN3
Board to Board Connector 2 (High Speed Signal)
CN4
Fan Power Connector (+5V level)
CN5
LVDS Connector
CN6
USB 2.0 Wafer Connector
CN7
Inverter Connector
CN8
SATA Power Connector
CN9
SMBus Connector
CN10
Front Panel Connector
CN12
DC Jack Power Connector w/ Screw
CN13
HDMI Connector
CN14
I2C Connector
CN15
VGA Connector
BAT1
CMOS Battery Connector
LAN1
Ethernet Port
SSATA1
SATA Connector
SCN1
Full-size PCI-Express Mini Card and mSATA Connector
SSDIMM1
DDR3L SO-DIMM Connector

PICO312 Pico-ITX Board
14 Board and Pin Assignments
2.5.1 Board to Board Connectors (CN2 and CN3)
CN2 is a 2x30-pin board to board connector. The pin assignments of CN2 are given as
follows.
1 59
2 60
Pin
Signal
Pin
Signal
1
HDA_SYNC_1P8
2
HDA_CLK_1P8
3
HDA_SDI0_1P8
4
HDA_RST_1P8_N
5
HDA_SDO_1P8
6
HDA_VDDIO
7
DCD2/COM3_EN
8
DSR2/COM4_EN
9
RXD2/COM3_TERM
10
RTS2/COM4_TERM
11
TXD2/COM3_GPIO0
12
CTS2/COM4_GPIO0
13
DTR2/COM3_GPIO1
14
RI2/COM4_GPIO1
15
DCD1/COM1_EN
16
DSR1/COM2_EN
17
RXD1/COM1_TERM
18
RTS1/COM2_TERM
19
TXD1/COM1_GPIO0
20
CTS1/COM2_GPIO0
21
DTR1/COM1_GPIO1
22
RI1/COM2_GPIO1
23
N/A
24
N/A
25
LPC_CLK0_25M_BTB
26
L_AD3
27
L_FRAME_N
28
L_AD2
29
SER_IRQ
30
L_AD31
31
N/A
32
L_AD30
33
USB_OC1_2_3P3_N
34
USB_OC3_4_3P3_N
35
GND
36
GND
37
USB_DP1
38
USB_DP3
39
USB_DN1
40
USB_DN3
41
GND
42
GND
43
USB_DP2
44
USB_DN4
45
USB_DN2
46
USB_DP4
47
GND
48
GND
49
FP_PSIN_N
50
+5V_SBY
51
SATA_LED_3P3_N
52
+5V_SBY
53
FP_RST_N
54
+V5_SBY
55
PLTRST_1_N
56
GND
57
+V3.3S
58
+V5S
59
+V3.3S
60
+V5S