AXIOMTEK CEM881 User manual

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©Copyright 2016 Axiomtek Co., Ltd.
Version A2 May 2016
Printed in Taiwan
Quick Start
The basic procedures required to power on CEM881:
(1). Require DC +12V power at minimum 2.67A. Make sure the power is
OFF before connecting the CEM881.
(2). Check to ensure the onboard switch SW1-1 is set to default (ON
position).
(3). Firmly install DDR3L memory module into connector DIMM1 until fully
seated.
Note: It must be DDR3L memory module.
(4). Attach heatsink to the CEM881, refer to section Installing Heatsink.
(5). Install the CEM881 onto COM ExpressTM baseboard, for example,
CEB94006 baseboard.
(6). Properly install all necessary peripheral devices such as hard disk,
display, keyboard and etc. to the baseboard.
(7). Firmly attach power supply to the baseboard’s power connector.
(8). Turn on the system power.
(9). Press power button on the baseboard to start CEM881.
CEM881 Quick Installation Guide
9418D881010E 1
©Copyright 2016 Axiomtek Co., Ltd.
Version A2 May 2016
Printed in Taiwan
Checklist
CEM881 Board x1 Product Information CD x1
Quick Installation Guide x1
Note: Please contact your local vendors if any damaged or missing items. DO
NOT apply power to the board if there is any damaged component.
Please refer to the product information CD for the complete user’s
manual, drivers and utilities. User’s manual and related documents are
in Acrobat PDF format.
Module Layout
Top View
CEM881 4th/5th Generation Intel®CoreTM Processor COM ExpressTM Type 6 Compact Module

2 9418D881010E
©Copyright 2016 Axiomtek Co., Ltd.
Version A2 May 2016
Printed in Taiwan
Bottom View
Switch Settings
Before applying power to the CEM881, please make sure all of the switches
are in factory default positions.
Switch Description Setting
Auto Power On
Default: Disable SW1-1 ON
SW1 Restore BIOS Optimal Defaults
Default: Normal Operation SW1-2 OFF
Connectors
Connector Description
DIMM1 DDR3L SO-DIMM Connector
SS1 COM ExpressTM Connector
SS2 COM ExpressTM Connector
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©Copyright 2016 Axiomtek Co., Ltd.
Version A2 May 2016
Printed in Taiwan
Installing Heatsink
For thermal dissipation, a heatsink enables the CEM881’s components to
dissipate heat efficiently. All heat generating components are thermally
conducted to the heatsink in order to avoid hot spots. Below images
illustrate how to install the heat spreader.
1. There is a protective plastic covering on the thermal pads. This must be
removed before the heatsink can be mounted.
2. Each heatsink is designed for a specific CEM module. The thermal
pads on the heatsink are designed to make contact with the necessary
components on the CEM module. When mounting the heatsink you
must make sure that the thermal pads on the heatsink make complete
contact (no space between thermal pad and component) with the
corresponding components on the CEM module. This is especially
critical for CEM modules that have higher CPU speeds (for example
1.0GHz or more) to ensure that the heatsink acts as a proper thermal
interface for cooling solutions.
3. This CPU module has four assembly holes for installing heatsink plate.
Use the four screws to secure the heatsink plate to the CEM881. Be
careful not to over-tighten the screws.
Note: When installing CEM881 on CEB94006, please add stand-off and
secure with nut. Then, use the screws to secure the heatsink
plate to the CEM881.