AXIOMTEK CEM521 User manual

CEM521
8th Generation Intel®Core i7/i5/i3
and Celeron processors COM
Express Type 6 Compact Module
User’s Manual

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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
July 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 modules or integrated circuits from their anti-static packaging until you are
ready to install them.
Before holding the module 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 modules 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®, Celeron® are trademarks of Intel 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...............................................................................................1
1.2 Specifications......................................................................................2
1.3 Utilities Supported ..............................................................................3
Chapter 2 Module and Pin Assignments.................. 5
2.1 Module Dimensions and Fixing Holes...............................................5
2.2 Module Layout.....................................................................................6
2.3 Installing Thermal Solution ................................................................8
2.4 Switch Settings .................................................................................10
2.4.1 Auto Power On and Restore BIOS Optimal Defaults (SW1) .................... 10
2.5 Connector..........................................................................................11
2.5.1 Fan Connector (CN1).................................................................................11
2.5.2 CMOS Battery Connector (BAT)................................................................11
2.5.3 COM ExpressTM Connector (SS1 and SS2).............................................. 12
Chapter 3 Hardware Description ........................... 15
3.1 Microprocessor .................................................................................15
3.2 BIOS ...................................................................................................15
3.3 System Memory.................................................................................15
3.4 I/O Port Address Map........................................................................16
3.5 Interrupt Controller (IRQ) Map .........................................................17
3.6 Memory Map ......................................................................................22
Chapter 4 AMI BIOS Setup Utility .......................... 23
4.1 Starting...............................................................................................23
4.2 Navigation Keys ................................................................................23
4.3 Main Menu..........................................................................................25
4.4 Advanced Menu.................................................................................26
4.5 Chipset Menu.....................................................................................43
4.6 Security Menu....................................................................................49
4.7 Boot Menu..........................................................................................50

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4.8 Save & Exit Menu ..............................................................................52
Appendix A Watchdog Timer................................... 55
A.1 About Watchdog Timer.....................................................................55
A.2 How to Use Watchdog Timer............................................................55
Appendix B Digital I/O ............................................. 57
B.1 About Digital I/O................................................................................57
B.2 How to Use Digital I/O.......................................................................57
Appendix C iAMT Settings ...................................... 59
C.1 Entering MEBx...................................................................................59
C.2 Set and Change Password...............................................................59
C.3 iAMT Settings ....................................................................................62
C.4 iAMT Web Console............................................................................67

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CEM521 COM ExpressTM Type 6 Module
Introduction 1
Chapter 1
Introduction
The CEM521 is a new COM ExpressTM Type 6 Compact Module supporting Intel®Core™
i7-8665UE/i5-8365UE/i3-8145UE processor and Intel®Celeron®processor 4305UE. It delivers
outstanding system performance and support excellent multiple I/Os like LVDS, one Gigabit
Ethernet, HD Audio interface, three SATA-600, four USB 3.0 and eight USB 2.0 ports. For
extension purpose, it provides maximum up to 8 lanes of PCI-Express Gen 3 which could fulfill
various applications with high computing requirement.
1.1 Features
Intel® Core™ i7-8665UE/i5-8365UE/i3-8145UE processor and Intel®Celeron®processor
4305UE
Two SO-DIMMs supporting up to 64 GB memory capacity
Support max. up to 8 lanes of PCI-Express
3 SATA-600 with RAID 0/1/5
4 USB 3.0 and 8 USB 2.0 ports

CEM521 COM ExpressTM Type 6 Module
2 Introduction
1.2 Specifications
CPU
Intel®Core™ i7-8665UE.
Intel®Core™ i5-8365UE.
Intel®Core™ i3-8145UE.
Intel®Celeron®4305UE.
BIOS
American Megatrends Inc. BIOS.
UEFI Legacy Free.
System Memory
Two 204-pin DDR4 2400MHz SO-DIMM sockets support maximum memory capacity
up to 64GB.
Expansion Interface
1 x PCIe x8 v3.0 (8GT/s) configurable (2 x4, 1 x4+4 x1).
8 x PCIe 3.0.
USB Interface
Four USB ports comply with USB Spec. Rev. 3.0.
Eight USB ports comply with USB Spec. Rev. 2.0.
SATA Interface
Three SATA 6Gb/s ports supported through COM ExpressTM connector.
TPM
Trusted Platform Module compatible with TPM2.0 Main and PC Client specification
based on Intel LPC Bus Interface.
Graphics & Display
Intel®Gen 9 HD Graphic.
Gfx - DX12.0, OCL2.0, OGL4.3.
1 x LVDS; 18/24-bit single/dual channel (optional eDP 1.4: 4096 x 2304 @60Hz).
1 x VGA up to 1920 x 1200 @60Hz (default).
1 x DDI (DisplayPort 1.2: 4096 x 2304 @60Hz/HDMI 1.4: 4096 x 2160 @30/24Hz).
Ethernet
One 1000/100/10 Base-T provided by Intel®I219LM supports Wake-on-LAN, PXE
Boot ROM, iAMT.
Audio
Intel®High Definition Audio interface.
Operating Temperature
-40°C to +85°C (-40°F to +185°F)
Power Input
ATX: +12V, +5VSB.
AT: +12V.

CEM521 COM ExpressTM Type 6 Module
Introduction 3
Power Management
ACPI (Advanced Configuration and Power Interface).
Form Factor
Compact module 95mm x 95mm.
1.3 Utilities Supported
Chipset driver
Graphics driver
Serial Patch_v3.0.6.7MS
Rapid Storage Technology
Management Engine Firmware
Intel Network Connection
Note
All specifications and images are subject to change without notice.

CEM521 COM ExpressTM Type 6 Module
4 Introduction
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