AXIOMTEK CEM881 User manual

4 9418D881010E

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

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

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

9418D881010E 3

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.

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