AXIOMTEK CAPA520 User manual

CAPA520
8th/ 9th Generation Intel®CoreTM
Processor Family 3.5”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 2020 Axiomtek Co., Ltd.
All Rights Reserved
June 2020, Version A1
Printed in Taiwan

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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.................................................................................................4
Chapter 2 Board and Pin Assignments.................... 5
2.1 Board Dimensions and Fixing Holes.................................................5
2.2 Board Layout.......................................................................................7
2.3 Installing Fan.......................................................................................9
2.4 Jumper and Switch Settings ............................................................10
2.4.1 LVDS +3.3V/+5V/+12V Voltage Selection (JP1)........................................11
2.4.2 Restore BIOS Optimal Defaults (SW1)......................................................11
2.4.3 Auto Power On (SSW1) .............................................................................11
2.5 Connectors........................................................................................12
2.5.1 Front Panel Connector (CN1) ................................................................... 13
2.5.2 SMBus Connector (CN2) .......................................................................... 14
2.5.3 HDMI Connector (CN3)............................................................................. 14
2.5.4 DisplayPort Connector (CN4).................................................................... 15
2.5.5 Inverter Connector (CN5).......................................................................... 15
2.5.6 LVDS Connector (CN6)............................................................................. 16
2.5.7 Ethernet Ports (CN7 and CN8) ................................................................. 18
2.5.8 Ethernet Wafer Connector (CN9).............................................................. 18
2.5.9 USB 3.0 Port (CN10)................................................................................. 19
2.5.10 USB 3.0/2.0 Port (CN11)........................................................................... 19
2.5.11 USB 2.0 Wafer Connector (CN12)............................................................ 19
2.5.12 SATA Connectors (CN13 and CN14) ........................................................ 20
2.5.13 SATA Power Connector (CN15)................................................................ 20
2.5.14 SATA Power Connector (CN16)................................................................ 20
2.5.15 COM1 Wafer Connector (CN17)............................................................... 21
2.5.16 Fan Connector (CN18).............................................................................. 21
2.5.17 Digital I/O Connector (CN19) .................................................................... 21
2.5.18 Audio Wafer Connector (CN20) ................................................................ 22
2.5.19 ATX Power Connector (ATX1)................................................................... 22
2.5.20 CMOS Battery Connector (BAT1) ............................................................. 22
2.5.21 Full-size PCI-Express Mini Card Connector (SCN1) ................................ 23
2.5.22 SIM Card Wafer Connector (SCN2).......................................................... 24

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2.5.23 ZIO Expansion Connector (SCN3)............................................................ 24
Chapter 3 Hardware Description ........................... 25
3.1 Microprocessors ...............................................................................25
3.2 BIOS ...................................................................................................25
3.3 System Memory.................................................................................25
3.4 I/O Port Address Map........................................................................26
3.5 Interrupt Controller (IRQ) Map .........................................................27
3.6 Memory Map ......................................................................................33
Chapter 4 AMI BIOS Setup Utility .......................... 35
4.1 Starting...............................................................................................35
4.2 Navigation Keys ................................................................................35
4.3 Main Menu..........................................................................................37
4.4 Advanced Menu.................................................................................38
4.5 Chipset Menu.....................................................................................54
4.6 Security Menu....................................................................................59
4.7 Boot Menu..........................................................................................60
4.8 Save & Exit Menu ..............................................................................61
Appendix A Watchdog Timer................................... 63
A.1 About Watchdog Timer.....................................................................63
A.2 How to Use Watchdog Timer............................................................63
A.3 Sample Program................................................................................64
Appendix B Digital I/O ............................................. 67
B.1 About Digital I/O................................................................................67
B.2 Digital I/O Programming...................................................................67

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CAPA520 Intel®CoreTM Processor Family 3.5”Board
Introduction 1
Chapter 1
Introduction
The CAPA520, a high performance 3.5” board, supports LGA1151 socket for 8th/ 9th
Generation Intel®CoreTM i7/ i5/ i3 processors with H310 (Q370 optional) chipsets. The board
delivers outstanding system performance through high-bandwidth interfaces, multiple I/O
functions for interactive applications and various embedded computing solutions.
There is one 260-pin unbuffered SO-DIMM socket for single channel DDR4 2666MHz memory
supporting up to 32GB memory capacity. It also features three Gigabit/Fast Ethernet ports, two
SATA port with transfer rate up to 6Gb/s, three USB 3.0 and three USB 2.0 high speed
compliant, and built-in HD audio codec that can achieve the best stability and reliability for
industrial applications. Additionally, it provides you with unique embedded features, such as
one serial port (RS-232/422/485) and 3.5” form factor that applies an extensive array of PC
peripherals.

CAPA520 Intel®CoreTM Processor Family 3.5”Board
2 Introduction
1.1 Features
LGA1151 socket for 8th/ 9th Generation Intel®CoreTM i7/ i5/ i3/ Celeron®with TDP 35W
processors
H310 (Q370 optional) chipset
1 DDR4 SO-DIMM supports up to 32GB memory capacity
3 USB 3.0 and 3 USB 2.0 ports (USB 3.1 Gen2 for Q370 chipset)
1 COM port with RS232/422/485 supported
1 PCI-Express Mini Card
+12V only DC-in supported
1.2 Specifications
CPU
LGA1151 Socket.
Suggested CPU
Intel®CoreTM i7-8700T 6 core 2.4GHz / i7-9700TE 8 core 1.8GHz.
Intel®CoreTM i5-8500T 6 core 2.1GHz / i5-9500TE 6 core 2.2GHz.
Intel®CoreTM i3-8100T quad core 3.1GHz / i3-9100TE quad 2.2GHz.
Intel®Celeron®processor G4900T dual code 2.9GHz.
Note
SpeedStep might be functioned to minimize power draw and heat generation.
Chipset
Intel®H310 chipset.
Intel®Q370 chipset (optional).
Thermal Solution
Active.
Operating Temperature
-20°C~60°C.
BIOS
American Megatrends Inc. UEFI (Unified Extensible Firmware Interface) BIOS.
256Mbit SPI Flash, DMI, Plug and Play.
PXE Ethernet Boot ROM.
System Memory
One 260-pin unbuffered DDR4 SO-DIMM socket.
Maximum up to 32GB DDR4 2666MHz memory capacity.
Onboard Multi I/O
Controller: Fintek F81803U.
Serial Port: One port for RS-232/422/485.
Serial ATA
Two SATA-600 connector.
mSATA supported (BOM optional).

CAPA520 Intel®CoreTM Processor Family 3.5”Board
Introduction 3
USB Interface
Four USB ports on the rear I/O:
- H310 chipset: Three for USB 3.0 and one for USB 2.0.
- Q370 chipset (optional): Three for USB 3.1 Gen2 and one for USB 2.0.
Two USB 2.0 ports in 2x5-pin internal wafer connector.
Display
One DisplayPort. Max. resolution is 4096x2160 @60Hz.
One 2x20-pin connector for 18/24-bit single/dual channel LVDS and one 8-pin
inverter connector. LVDS resolution is up to 1920x1200 in 24-bit dual channels.
One HDMI. Max. resolution is 4096x2160 @30Hz.
Watchdog Timer
1~255 seconds or minutes; up to 255 levels.
Ethernet
LAN1: Intel®i219LM supports 1000/100/10Mbps Gigabit/Fast Ethernet with
Wake-on-LAN and PXE Boot ROM.
LAN2: Intel®i211AT supports 1000/100/10Mbps Gigabit/Fast Ethernet with
Wake-on-LAN and PXE Boot ROM.
LAN3: Intel®i211AT supports 1000/100/10Mbps Gigabit/Fast Ethernet with
Wake-on-LAN and PXE Boot ROM.
Audio
HD audio link without codec.
1x8-pin 1.0mm wafer HDA signal to support expansion audio board AX93A22.
Expansion Interface
One full-size PCI-Express Mini Card socket complies with PCI-Express Mini Card
Spec. V1.2.
ZIO Connector
60-pin high speed connector; containing one PCI-Express x1, one USB 2.0, one
USB 3.1 Gen1, one LPC and one SMBus.
Power Input
One 2x2-pin connector.
+12V only DC-in.
AT auto power on function supported.
Power Management
ACPI (Advanced Configuration and Power Interface).
Form Factor
3.5”form factor.
Note
All specifications and images are subject to change without notice.

CAPA520 Intel®CoreTM Processor Family 3.5”Board
4 Introduction
1.3 Utilities
Chipset and graphics driver
Ethernet driver (Intel®i211AT and i219LM)
Audio driver (optional for AX93A22)

CAPA520 Intel®CoreTM Processor Family 3.5”Board
Board and Pin Assignments 5
Chapter 2
Board and Pin Assignments
2.1 Board Dimensions and Fixing Holes
Top View

CAPA520 Intel®CoreTM Processor Family 3.5”Board
6 Board and Pin Assignments
Bottom View
Side View

CAPA520 Intel®CoreTM Processor Family 3.5”Board
Board and Pin Assignments 7
2.2 Board Layout
Top View
Side View

CAPA520 Intel®CoreTM Processor Family 3.5”Board
8 Board and Pin Assignments
Bottom View

CAPA520 Intel®CoreTM Processor Family 3.5”Board
Board and Pin Assignments 9
2.3 Installing Fan
The processor needs specially designed heatsink and fan assembly to cool down and ensure
sufficient air flow inside your system.
After applying thermal grease on the processor and installing it on the socket, please place
heatsink and fan assembly on top of the processor. Match the four screws to the fixing holes
on the board. Then screw tightly the heatsink and CPU fan assembly onto the board.
Note
Be careful not to over tighten the screws as it can damage the processor or the
CPU board.
Also make sure the fan cable is plugged to fan connector (see section 2.5.15) as indicated in
image below.

CAPA520 Intel®CoreTM Processor Family 3.5”Board
10 Board and Pin Assignments
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 CAPA520 to meet your application
purpose. Below you can find a summary table of jumper, 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
JP1
LVDS +3.3V/+5V/+12V Voltage Selection
Default: +3.3V Level
1-2 Close
SW1
Restore BIOS Optimal Defaults
Default: Normal Operation
Release
SSW1
Auto Power On
Default: Disable
1-2 Close

CAPA520 Intel®CoreTM Processor Family 3.5”Board
Board and Pin Assignments 11
2.4.1 LVDS +3.3V/+5V/+12V Voltage Selection (JP1)
This is a 2x3-pin (pitch=2.0mm) jumper. The board supports voltage selection for flat
panel displays. Use JP1 to set LVDS connector (see section 2.5.6) pin 1~6 VCCM to
+3.3V, +5V or +12V. To prevent hardware damage, before connecting please make sure
that input voltage of the flat panel is correct.
2.4.2 Restore BIOS Optimal Defaults (SW1)
Use SW1 to clear CMOS. Press the tact switch for at least 3 seconds to restore BIOS
optimal defaults.
2.4.3 Auto Power On (SSW1)
If SSW1 is enabled for power input, the system will be automatically power on without
pressing soft power button. If SSW1 is disabled for power input, it is necessary to
manually press soft power button to power on the system.
Function
Setting
+12V level
5-6 close
+5V level
2-4 close
+3.3V level (Default)
1-2 close
Function
Setting
Normal (Default)
Release
Restore BIOS optimal defaults
Press
Function
Setting
Disable auto power on (Default)
1-2 close
Enable auto power on
2-3 close

CAPA520 Intel®CoreTM Processor Family 3.5”Board
12 Board and Pin Assignments
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 of connectors on the hardware.
Connector
Description
CN1
Front Panel Connector
CN2
SMBus Connector
CN3
HDMI Connector
CN4
DisplayPort Connector
CN5
Inverter Connector
CN6
LVDS Connector
CN7, CN8
Ethernet Port 1 and 2
CN9
Ethernet Port 3 Wafer Connector
CN10
USB 3.0 Port
CN11
USB 3.0/USB2.0 Port
CN12
USB 2.0 Wafer Connector
CN13, CN14
SATA 0 and 1 Ports
CN15, CN16
SATA 0 and 1 Power Connectors
CN17
COM1 Wafer Connector
CN18
Fan Connector
CN19
Digital I/O Connector
CN20
Audio HDA Wafer Connector
ATX1
ATX Power Connector
BAT1
CMOS Battery Connector
SCN1
Full-size PCI-Express Mini Card Connector
SCN2
SIM Card Wafer Connector
SCN3
ZIO Expansion Connector
SDIMM1
DDR4 SO-DIMM Connector

CAPA520 Intel®CoreTM Processor Family 3.5”Board
Board and Pin Assignments 13
2.5.1 Front Panel Connector (CN1)
This is a 2x6-pin header (pitch=2.0mm) for front panel interface.
2 4 6 8 10 12
1 3 5 7 9 11
Internal Buzzer
Pin 1(-) and 2(+) connect the internal buzzer cable.
Power Status (PS-ON)
Pin 4 and pin 3 are PS-ON signal which are connected to know the power status of this
board.
Power LED
Pin 6 connects anode (+) of LED and pin 5 connects cathode(-) of LED. The power LED
lights up when the system is powered on.
Power On/Off Button
Pin 7 and 8 connect the power button on front panel to CPU board, which allows users to
turn on or off power.
System Reset Switch
Pin 9 and 10 connect the case-mounted reset switch that reboots your computer without
turning off the power switch. It is a better way to reboot your system for a longer life of
system power supply.
HDD Activity LED
This connection is linked to hard drive activity LED on the control panel. LED flashes
when HDD is being accessed. Pin 11 and 12 connect the hard disk drive to the front
panel HDD LED, pin 9 is assigned as cathode(-) and pin 10 is assigned as anode(+).
Pin
Signal
Pin
Signal
1
BUZZER-
2
BUZZER+
3
GND
4
PWR_PSON
5
PWRLED-
6
PWRLED+
7
PWRSW-
8
PWRSW+
9
HW RST-
10
HW RST+
11
HDDLED-
12
HDDLED+

CAPA520 Intel®CoreTM Processor Family 3.5”Board
14 Board and Pin Assignments
2.5.2 SMBus Connector (CN2)
This is a 1x3-pin (pitch=1.25mm) wafer connector fully compliant with JST B3B-PH-K-S
for SMBus interface. The SMBus (System Management Bus) is a simple bus for the
purpose of lightweight communication.
2.5.3 HDMI Connector (CN3)
The HDMI (High-Definition Multimedia Interface) is a compact digital interface which is
capable of transmitting high-definition video and high-resolution audio over a single
cable.
Pin
Signal
1
CLK
2
DATA
3
GND
Pin
Signal
Pin
Signal
1
HDMI OUT_DATA2+
2
GND
3
HDMI OUT_DATA2-
4
HDMI OUT_DATA1+
5
GND
6
HDMI OUT_DATA1-
7
HDMI OUT_DATA0+
8
GND
9
HDMI OUT_DATA0-
10
HDMI OUT_Clock+
11
GND
12
HDMI OUT_Clock-
13
N.C.
14
N.C.
15
HDMI OUT_SCL
16
HDMI OUT_SDA
17
GND
18
+5V
19
HDMI_HTPLG