AXIOMTEK CEM520 User manual

Version A2 July 2020

Printed in T iw n

Quick Start

The basic procedures required to power on CEM520:

(1). Make sure the power is OFF before connecting the CEM520.

(2). Check to ensure the onboard switch SW1-1 and SW1-2 are set to

default (OFF position).

(3). Firmly install DDR4 SO-DIMM in DIMM1/DIMM2 until fully seated. For

single memory channel configuration, install memory module in

channel 0 (DIMM1) DDR4 SO-DIMM socket. For dual memory

channel configuration, install memory modules of the same size, chip

width, density and rank in both channel 0 (DIMM1) and channel 1

(DIMM2) DDR4 SO-DIMM sockets.

(4). Attach heatsink to the CEM520, refer to section Installing Thermal

Solution.

(5). Install the CEM520 onto COM Express

baseboard, for example,

CEB94011

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 power connector.

(8). Turn on the system power.

(9). Press power button on the baseboard to start CEM520.

CEM520 Quick Installation Guide

Version A2 July 2020

Printed in T iw n

Checklist



Board x1



uick Installation Guide

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.

For user manual, drivers, certificates and technical

support, please visit our product website or scan

QR code.

Module Layout

Top View

CEM520 COM Express

Type 6 Basic Module

http://www.axiomtek.com.tw/Default.aspx?Men

uId=Products&FunctionId=ProductView&ItemId

=25364&C=CEM520&upcat=332

Version A2 July 2020

Printed in T iw n

Bottom View

Switch Settings

Before applying power to the CEM520, please make sure onboard

switches are in factory default positions.

Switch Description Setting

SW1

Auto Power On

Default: Disable

SW1-1 OFF

Restore BIOS Optimal Defaults

Default: Normal Operation

SW1-2 OFF

SW2 PCI-Express Bifurcation Setting

Default: One x16 PCI

Express

SW1-1 OFF,

SW1-2 OFF

Connector

Connector Description

CN1

Fan Connector

BAT1

Battery Connector

SS1

COM Expre

Connector

SS2

COM Express

Connector

DIMM1

Channel 0

DDR

DIMM

Socket

DIMM2

Channel

DDR

DIMM

Socket

Version A2 July 2020

Printed in T iw n

Installing Thermal Solution

For thermal dissipation, a thermal solution enables the CEM520’s

components to dissipate heat efficiently. All heat generating components

are thermally conducted to the heatsink in order to avoid hot spots. Figure

below illustrates how to install the thermal solution on CEM520.

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. Before installing the heatsink to the CPU module, please apply thermal

grease on the CPU die. This CPU module has assembly holes for

installing heatsink plate. Use the appropriate screws to secure the

heatsink plate to the CEM520. Be careful not to over-tighten the screws.

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