VIA Technologies EPIA-M920-10E, EPIA-M920-12Q User Manual

USER MANUAL

EPIA-M920

Mini-ITX embedded board

1.04-06182013-175200

No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language,

in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise without the prior written

permission of VIA Technologies, Incorporated.

Trademarks

All trademarks are the property of their respective holders.

Disclaimer

No license is granted, implied or otherwise, under any patent or patent rights of VIA Technologies. VIA Technologies makes no

warranties, implied or otherwise, in regard to this document and to the products described in this document. The information

provided in this document is believed to be accurate and reliable as of the publication date of this document. However, VIA

Technologies assumes no responsibility for the use or misuse of the information (including use or connection of extra

device/equipment/add-on card)

The information and product specifications within this document are subject to change at any time, without notice and without

obligation to notify any person of such change.

VIA Technologies, Inc. reserves the right the make changes to the products described in this manual at any time without prior

notice.

Regulatory Compliance

FCC

FCC----A Radio Frequency Interference Statement

A Radio Frequency Interference Statement

FCCFCC

A Radio Frequency Interference StatementA Radio Frequency Interference Statement

This equipment has been tested and found to comply with the limits for a class A digital device, pursuant to part 15 of the FCC

rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a

commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in

accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a

residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his

personal expense.

Notice 1

Notice 1Notice 1

The changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to

operate the equipment.

Notice 2

Notice 2Notice 2

Shielded interface cables and A.C. power cord, if any, must be used in order to comply with the emission limits.

Notice 3

Notice 3Notice 3

The product described in this document is designed for general use, VIA Technologies assumes no responsibility for the conflicts

or damages arising from incompatibility of the product. Check compatibility issue with your local sales representatives before

placing an order.

in this document and for any patent infringements that may arise from the use of this document.

Tested To Comply With FCC Standards FOR HOME OR OFFICE USE

Battery Recycling and Disposal



Only use the appropriate battery specified for this product.



Do not re-use, recharge, or reheat an old battery.



Do not attempt to force open the battery.



Do not discard used batteries with regular trash.



Discard used batteries according to local regulations.

Safety Precautions



Always read the safety instructions carefully.



Keep this User's Manual for future reference.



All cautions and warnings on the equipment should be noted.



Keep this equipment away from humidity.



Lay this equipment on a reliable flat surface before setting it up.



Make sure the voltage of the power source and adjust properly 110/220V before connecting

the equipment to the power inlet.



Place the power cord in such a way that people cannot step on it.



Always unplug the power cord before inserting any add-on card or module.



If any of the following situations arises, get the equipment checked by authorized service

personnel:



The power cord or plug is damaged.



Liquid has penetrated into the equipment.



The equipment has been exposed to moisture.



The equipment has not worked well or you cannot get it work according to User's Manual.



The equipment has dropped and damaged.



The equipment has obvious sign of breakage.



Do not leave this equipment in an environment unconditioned or in a storage temperature

above 60°C (140°F). The equipment may be damaged.



Do not leave this equipment in direct sunlight.



Never pour any liquid into the opening. Liquid can cause damage or electrical shock.



Do not place anything over the power cord.



Do not cover the ventilation holes. The openings on the enclosure protect the equipment

from overheating

EPIA

EPIA----M920

EPIAEPIA

Box Contents and Ordering Information

Model Number

Model Number CPU Frequency

Model NumberModel Number

EPIA-M920-10E 1.0GHz Eden™ X2 Standard kit

EPIA-M920-12Q 1.2GHz QuadCore Standard kit

CPU Frequency Description

CPU FrequencyCPU Frequency

Description

DescriptionDescription

 1 x SATA cable  1 x I/O bracket

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Table of Contents

1. Product Overview

Product Overview................................

1.1.

Product OverviewProduct Overview

1.1.

Key Features and Benefits........................................................................... 2

1.1.1. VIA QuadCore /VIA Eden™ X2 Processor ......................................... 2

1.1.2. VIA VX11H MSPIII Chipset.................................................................... 3

1.1.3. Modular Expansion Options................................................................. 3

1.2.

Product Specifications................................................................................. 4

1.3.

Layout Diagram ............................................................................................. 7

1.4.

Product Dimensions..................................................................................... 2

1.5.

Height Distribution....................................................................................... 3

2. I/O Interface

I/O Interface................................

2.2.

I/O InterfaceI/O Interface

2.1.

External I/O Ports ......................................................................................... 5

2.1.1. PS/2 Port.................................................................................................... 6

2.1.2. HDMI® Port............................................................................................... 7

2.1.3. COM Port.................................................................................................. 8

2.1.4. RJ45 LAN port: Gigabit Ethernet ......................................................... 9

2.1.5. Audio Ports.............................................................................................10

2.1.6. VGA Port................................................................................................. 11

2.1.7. USB 2.0 Port ........................................................................................... 12

2.1.8. USB 3.0 Port ........................................................................................... 13

2.2.

Onboard Connectors ................................................................................14

2.2.1. ATX Power Connector......................................................................... 14

2.2.2. LVDS panel connectors ....................................................................... 15

2.2.3. LVDS Inverter Connector ....................................................................18

2.2.4. Digital I/O pin headers ........................................................................ 20

2.2.5. External Thermal Resister.................................................................... 21

2.2.6. Front Panel Pin Header ........................................................................22

2.2.7. SMBus Pin Header................................................................................. 24

2.2.8. CPU and System Fan Connectors ...................................................... 25

2.2.9. SATA Connectors .................................................................................26

................................................................

................................ 1111

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2.2.10. USB 2.0 Pin Headers............................................................................. 27

2.2.11. COM Pin Header for COM2~COM4 ................................................ 28

2.2.12. PS/2 Keyboard and Mouse Pin Header ............................................29

2.2.13. Front Audio Pin Header ....................................................................... 30

2.2.14. SPI address select .................................................................................31

2.2.15. SPI Pin Header .......................................................................................32

2.2.16. LPC Pin Header ...................................................................................... 33

2.2.17. SPDIF Connector ................................................................................... 34

2.2.18. CMOS Battery Slot................................................................................ 35

2.2.19. USB3.0 Connector................................................................................. 36

3. Jumpers

Jumpers ................................

3.3.

JumpersJumpers

3.1.

3.2.

3.3.

3.4.

3.4.1. VDD Power Select................................................................................ 41

3.5.

................................................................

Clear CMOS Jumper.................................................................................. 37

SATA DOM Power Select Jumper ......................................................... 38

COM1 and COM2 Voltage Select Jumper........................................... 39

COM3 and COM4 Voltage Select Jumper........................................... 40

LVDS Jumper Settings ............................................................................... 42

................................................................

...............................................

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..............................

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4. Expansion Slots

Expansion Slots................................

4.4.

Expansion SlotsExpansion Slots

4.1.

DDR3 Memory Slots ..................................................................................43

4.1.1. Installing a Memory Module .............................................................. 44

Figure 42: Locking the memory module ...........................................................44

4.1.2. Removing a Memory Module............................................................. 45

4.1.3. PCI Express Slot .................................................................................... 46

5. Hardware Installatio

Hardware Installationnnn ................................

5.5.

Hardware InstallatioHardware Installatio

5.1.

Installing into a Chassis............................................................................. 47

5.1.1. Suggested minimum chassis dimensions ......................................... 47

5.1.2. Suggested minimum chassis height................................................... 48

5.1.3. Suggested keepout areas .................................................................... 50

6. BIOS Setup Utility

BIOS Setup Utility................................

6.6.

BIOS Setup UtilityBIOS Setup Utility

................................................................

........................................................

................................................................

..............................................................

................................................................

..................................

................................................................

........................ 47

................................................

.............................. 51

............................................................

.. 43

....

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6.1.

Entering the BIOS Setup Utility............................................................... 51

6.2.

Control Keys................................................................................................ 51

6.3.

Navigating the BIOS Menus ..................................................................... 52

6.4.

Getting Help................................................................................................ 52

6.5.

Main Menu ................................................................................................... 53

6.5.1. BIOS Information ................................................................................... 53

6.5.2. Memory Information ............................................................................. 53

6.5.3. System Language................................................................................... 53

6.5.4. System Date............................................................................................ 54

6.5.5. System Time ........................................................................................... 54

6.6.

Advanced Settings ..................................................................................... 55

6.6.1. ACPI Settings.......................................................................................... 56

6.6.2. S5 RTC Wake Settings .......................................................................... 57

6.6.3. CPU Information .................................................................................... 58

6.6.4. SATA Configuration.............................................................................. 59

6.6.5. F71869 Super IO Configuration ......................................................... 60

6.6.6. F71869 H/W Monitor ...........................................................................61

6.6.7. Clock Generator Configuration.......................................................... 62

6.6.8. On Board Configuration ......................................................................63

6.7.

Chipset Settings .......................................................................................... 65

6.7.1. DRAM Configuration ............................................................................66

6.7.2. Video Configuration ............................................................................. 69

6.7.3. UART Configuration.............................................................................. 71

6.7.4. PMU_ACPI Configuration ....................................................................72

6.7.5. HDAC Configuration ............................................................................ 74

6.7.6. SDIO_CR Configuration .......................................................................75

6.7.7. Others Configuration............................................................................ 77

6.8.

Boot Settings ............................................................................................... 78

6.8.1. Boot Configuration................................................................................ 78

6.8.2. Boot Option Priorities ..........................................................................79

6.8.3. Network Device BBS Priorities ...........................................................79

6.9.

Security Settings ......................................................................................... 80

6.9.1. Security Settings .................................................................................... 80

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6.10. Save & Exit Options ................................................................................... 82

6.10.1. Save Changes and Exit ......................................................................... 82

6.10.2. Discard Changes and Exit.................................................................... 82

6.10.3. Save Changes and Reset...................................................................... 82

6.10.4. Discard Changes and Reset................................................................. 83

6.10.5. Save Changes .........................................................................................83

6.10.6. Discard Changes.................................................................................... 83

6.10.7. VIA Networking Bootagent................................................................. 83

6.10.8. Launch EFI Shell from filesystem device ......................................... 83

7. Driver Installation

Driver Installation................................

7.7.

Driver InstallationDriver Installation

7.1.

Microsoft Driver Support.......................................................................... 85

7.2.

Linux Driver Support.................................................................................. 85

Appendix A. Power Consumption Report

Appendix A. Power Consumption Report................................

Appendix A. Power Consumption ReportAppendix A. Power Consumption Report

A.1. EPIA-M920 Rev. 2 DVT ATX POWER ............................................................ 87

A.1.1. Playing DVD – Power DVD 5.0 ...............................................................87

A.1.2. Playing MP3-Media Player ........................................................................88

A.1.3. Running Network Application ................................................................. 88

A.1.4. IDLE................................................................................................................ 89

A.1.5. RUN Burn-in Test ........................................................................................ 89

A.1.6. S3.................................................................................................................... 90

A.1.7. S5.................................................................................................................... 90

A.1.8. EuP/ErP Enable S3 ......................................................................................91

A.1.9. EuP/ErP Enable S5 ......................................................................................91

................................................................

...............................................................

................................................................

...............................................................

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............................... 87

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Lists of Figures

Figure 1: Layout diagram of the EPIA-M920 mainboard (top view) ...................... 7

Figure 2: Mounting holes and dimensions of the EPIA-M920 mainboard............ 2

Figure 3: External I/O port dimensions of the EPIA-M920 mainboard ................. 2

Figure 4: Height distribution of the EPIA-M920 mainboard (for Quad Core

model) ................................................................................................................................. 3

Figure 5: Height distribution of the EPIA-M920 mainboard (for Dual Core

model) ................................................................................................................................. 4

Figure 6: External I/O ports............................................................................................. 5

Figure 7: PS/2 port pinout diagram ............................................................................... 6

Figure 8: HDMI® port pinout diagram........................................................................... 7

Figure 9: COM port pinout diagram.............................................................................. 8

Figure 10: Gigabit Ethernet port pinout diagram ....................................................... 9

Figure 11: Audio jack receptacle stack....................................................................... 10

Figure 12: VGA port pinout diagram ..........................................................................11

Figure 13: USB port pinout diagram............................................................................ 12

Figure 14: USB 3.0 port pinout diagram..................................................................... 13

Figure 15: ATX power connector ................................................................................14

Figure 16: LVDS panel connector................................................................................ 15

Figure 17: LVDS Inverter connector ............................................................................ 18

Figure 18: Digital I/O pin headers ............................................................................... 20

Figure 19: External Thermal Resister........................................................................... 21

Figure 20: Front panel pin header ............................................................................... 22

Figure 21: SMBus pin header ........................................................................................ 24

Figure 22: CPU and System Fan connectors ..............................................................25

Figure 23: SATA connectors ......................................................................................... 26

Figure 24: USB pin headers ........................................................................................... 27

Figure 25: COM pin headers......................................................................................... 28

Figure 26: PS/2 keyboard and mouse pin header .................................................... 29

Figure 27: Front audio pin header ...............................................................................30

Figure 28: SPI address select ........................................................................................ 31

Figure 29: SPI pin header ............................................................................................... 32

EPIA

Figure 30: LPC pin header.............................................................................................. 33

Figure 31: SPDIF connector ...........................................................................................34

Figure 32: CMOS battery slot ....................................................................................... 35

Figure 33: USB 3.0 connectors .....................................................................................36

Figure 34: CLEAR CMOS jumper .................................................................................37

Figure 35: SATA DOM voltage select jumper.......................................................... 38

Figure 36: COM1 and COM2 voltage select jumper .............................................. 39

Figure 37: COM3 and COM4 voltage select jumper .............................................. 40

Figure 38: VDD Power Select....................................................................................... 41

Figure 39: LVDS jumper settings ..................................................................................42

Figure 40: DDR3 memory slots ....................................................................................43

Figure 41: Inserting the memory module................................................................... 44

Figure 42: Locking the memory module .................................................................... 44

Figure 43: Disengaging the SODIMM locking clips ................................................. 45

Figure 44: Removing the memory module ................................................................ 45

Figure 45: PCI Express slot ............................................................................................ 46

Figure 46: Suggested minimum chassis dimensions ................................................ 47

Figure 47: Suggested minimum internal chassis ceiling height (for dual core

model) ............................................................................................................................... 48

Figure 48: Suggested minimum internal chassis ceiling height (for quad core

model) ............................................................................................................................... 49

Figure 49: Suggested keepout areas ........................................................................... 50

Figure 50: Illustration of the Main menu screen....................................................... 53

Figure 51: Illustration of the Advanced Settings screen......................................... 55

Figure 52: Illustration of the ACPI Settings screen .................................................. 56

Figure 53: Illustration of S5 RTC Wake Settings screen.......................................... 57

Figure 54: Illustration of CPU Information screen .................................................... 58

Figure 55: Illustration of SATA Configuration screen ............................................. 59

Figure 56: Illustration of F71869 Super IO Configuration screen......................... 60

Figure 57: Illustration of F71869 H/W Monitor screen ........................................... 61

Figure 58: Illustration of Clock Generator Configuration screen ......................... 62

Figure 59: Illustration of On Board Configuration screen...................................... 63

Figure 60: Illustration of Chipset Settings screen..................................................... 65

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Figure 61: Illustration of DRAM Configuration screen ............................................ 66

Figure 62: Illustration of Video Configuration screen .............................................69

Figure 63: Illustration of UART Configuration screen .............................................71

Figure 64: Illustration of PMU_ACPI Configuration screen.................................... 72

Figure 65: Illustration of Other Control screen........................................................ 73

Figure 66: Illustration of HDAC Configuration screen............................................ 74

Figure 67: Illustration of SDIO_CR Configuration screen....................................... 75

Figure 68: Illustration of Others Configuration screen ...........................................77

Figure 69: Illustration of Boot Settings screen.......................................................... 78

Figure 70: Illustration of Security Settings screen.................................................... 80

Figure 71: Illustration of Save & Exit Options screen .............................................82

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Lists of Tables

Table 1: PS/2 port pinout ................................................................................................ 6

Table 2: HDMI® port pinout ........................................................................................... 7

Table 3: COM port pinout .............................................................................................. 8

Table 4: Gigabit Ethernet port pinout .......................................................................... 9

Table 5: Gigabit Ethernet LED color definition .......................................................... 9

Table 6: Audio jack receptacle pinout....................................................................... 10

Table 7: VGA port pinout ............................................................................................. 11

Table 8: USB port pinout............................................................................................... 12

Table 9: USB 3.0 port pinout........................................................................................ 13

Table 10: ATX power connector pinout ...................................................................14

Table 11: LVDS1 panel pinout ..................................................................................... 16

Table 12: LVDS2 panel pinout ..................................................................................... 17

Table 13: LVDS Inverter connector pinout................................................................ 19

Table 14: Digital I/O pin headers pinout................................................................... 20

Table 15: External thermal resister pinout................................................................ 21

Table 16: Front panel pin header pinout................................................................... 23

Table 17: SMBus pin header pinout............................................................................ 24

Table 18: CPU and System Fan connector pinouts .................................................25

Table 19: SATA connector pinouts............................................................................. 26

Table 20: USB pin header pinouts............................................................................... 27

Table 21: COM pin header pinout .............................................................................. 28

Table 22: PS/2 keyboard and mouse pin header pinout ........................................ 29

Table 23: Front audio pin header pinout................................................................... 30

Table 24: SPI address select pinout............................................................................ 31

Table 25: SPI pin header pinout ..................................................................................32

Table 26: LPC pin header pinout ................................................................................. 33

Table 27: SPDIF connector pinout ..............................................................................34

Table 28: CMOS battery slot pinout .......................................................................... 35

Table 29: USB 3.0 connector pinout........................................................................... 36

Table 30: CLEAR CMOS jumper settings ................................................................... 37

Table 31: SATA DOM voltage select jumper settings ........................................... 38

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Table 32: COM1 and COM2 voltage select jumper settings ...............................39

Table 33: COM3 and COM4 voltage select jumper settings ...............................40

Table 34: VDD Power Select pinout .......................................................................... 41

Table 35: LVDS jumper settings................................................................................... 42

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1. Product Overview

Product Overview

1.1.

Product OverviewProduct Overview

The VIA EPIA-M920 Mini-ITX mainboard is a high performance native x86

mainboard designed mainly for embedded, POS, Kiosk, ATM and digital media

application. It can also be used for various domain applications such as

desktop PC, industrial PC, etc. The mainboard is based on the VIA VX11H

MSPIII (Media System Processor) chipset that features the VIA Chrome

DX11 with 2D/3D graphics and video accelerators for rich digital media

performance.

The VIA EPIA-M920 includes a powerful, secure, and efficient VIA Eden

VIA QuadCore processor. The VIA Eden

Padlock Security Engine, VIA CoolStream

Technology Suite, and VIA TwinTurbo

QuadCore processor includes the VIA AES Security Engine, VIA CoolStream

Architecture and VIA PowerSaver

The VIA EPIA-M920 has two 1333 MHz DDR3 SODIMM slots that support up

to 16 GB memory size. The VIA EPIA-M920 provides support for high fidelity

audio with its included VIA VT2021 High Definition Audio Codec. In addition

it supports two SATA 3Gb/s storage devices.

™

X2 processor includes the VIA

™

Architecture, VIA StepAhead™

™

technology. Whereas the VIA

™

Technology.

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™

640

™

X2 /

™

The VIA EPIA-M920 is compatible with a full range of Mini-ITX chassis as well

as FlexATX and MicroATX enclosures and power supplies. The VIA EPIA-

M920 is fully compatible with Microsoft

and Linux operating systems.

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1.1. Key Features and Benefits

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1.1.1. VIA QuadCore /VIA Eden

™

X2 Processor

The VIA QuadCore is a 64-bit superscalar x86 quad core (Isaiah) processor

combine on two dies. It is based on advanced 40 nanometer process

technology packed into an ultra compact NanoBGA2 package measuring

21mm x 21mm. The VIA QuadCore processor delivers a superb performance

on multi-tasking, multimedia playback, productivity and internet browsing in a

low power budget.

The VIA Eden X2 is a 64-bit superscalar x86 dual core processor based on a

40 nanometer process technology. Packed into an ultra compact NanoBGA2

package (measuring 21mm x 21mm), it delivers an energy-efficient yet

powerful performance, with cool and quiet operation.

Note:

Note:Note:

For Windows 7 and Windows Server 2008 R2 users only:

If encounter the issue such as the operating system recognize the VIA Dual-Core CPU as two processors

instead of one processor with two cores. Download and install the hotfix released by Microsoft to

address this issue. The downloadable hotfix is available at http://support.microsoft.com/kb/2502664

http://support.microsoft.com/kb/2502664

http://support.microsoft.com/kb/2502664http://support.microsoft.com/kb/2502664

Both VIA QuadCore and Eden X2 processors are ideal for embedded system

applications such as industrial PCs, test machines, measuring equipment,

digital signage, medical PCs, monitoring systems, gaming machines, in-vehicle entertainment, etc.

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1.1.2. VIA VX11H MSPIII Chipset

The VIA VX11H is the fourth generation, highly integrated Media System

Processor which provides high quality digital video streaming and high

definition video playback. It features the VIA Chrome

graphics and video processor, High Definition video decoder

™

640 DX11 2D/3D

and supports

DDR3 1333 controller and USB 3.0 interface.

The VIA VX11H offers superb-graphics performance, immersive visual

experience, and supports DirectX 11.0 that allows realistic 3D rendering and

increased visual acuity. It is also based on a highly sophisticated power

efficient architecture that enables such rich integration into a compact package.

1.1.3. Modular Expansion Options

The VIA EPIA-M920 ensures long-term usability with its support for industry

standard expansion options. Its support for legacy PCI expansion cards helps

to smooth and reduce the costs of transitioning to newer expansion

technologies. The VIA EPIA-M920 enables companies to slowly roll out

upgrades as necessary instead of having to replace everything all at once. This

ensures that companies using the EPIA-M920 obtain the maximum benefits

from its past investments in PCI expansion cards.

The VIA EPIA-M920 also includes a 4-Lane PCI Express 2.0 expansion slot that

provides protection against obsolescence.

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1.2. Product Specifications



Processor

ProcessorProcessor



VIA Nano X4 1.2GHz+ with fansink (27.5W)



VIA Eden X2 1.0GHz+ fanless



7 bit VID



Chipset

ChipsetChipset



VIA VX11H MSPIII 33 x 33mm



System Memory

System MemorySystem Memory



2 x DDR3 1333 SODIMM



Supports up to 16 GB memory size

Note:

Note:Note:

The real memory size may show less than 16GB due to some capacity are used for BIOS or other

functions.



VGA

VGAVGA



Integrated VIA Chrome™ 640 HD DX11 3D/2D graphics with MPEG2, WMV9/VC1,

H.264 decoding acceleration



Onboard

Onboard Peripherals

Onboard Onboard



Onboard I/O Connectors

Onboard I/O ConnectorsOnboard I/O Connectors

Peripherals

PeripheralsPeripherals



Serial

Serial ATA

ATA

Serial Serial

ATAATA



2 SATA connectors



Onboard LAN

Onboard LANOnboard LAN



2 x VIA VT6130 PCIe Gigabit Ethernet Controller



Onboard Audio

Onboard AudioOnboard Audio



VIA VT2021 High Definition Audio Codec



Onboard Super I

Onboard Super I////OOOO

Onboard Super IOnboard Super I



Fintek F71869E



2 x USB 2.0 pin headers for 4 ports



1 x USB3.0 pin header for 1 port



2 x SATA connectors



2 x SATA DOM Power selectors



1 x Dual channel 18/24-bit LVDS (DVP, VT1636)



1 x Single channel 18/24-bit LVDS (VX11H internal)



2 x Backlight control connectors for inverter power and brightness control

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

1 x Front audio pin header (Line-out/MIC-in)



1 x PS/2 keyboard/mouse pin header



3 x RS232 pin header (2 from VX11H, configurable 5V/12V)



1 x LPC pin header



1 x SMBus pin header



1 x S/PDIF Out connector



1 x Digital I/O pin headers (GPI x 4, GPO x 4)



1 x Front panel pin header



2 x Smart Fan pin headers for CPU and System



1 x ATX power connector



1 x PCIex4 slot



1 x SD card (SDHC/SDXC)



1 x SPI



1 x Clear CMOS

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Back Panel I/O

Back Panel I/OBack Panel I/O



1 x Serial port (powered with selectable 5V/12V) + VGA port



2 x HDMI® ports



1 x GigaLAN port + 2 x USB3.0 ports



1 x GigaLAN port + 2 x USB2.0 ports



3 x Audio jacks: Line-in, Line-out and MIC-in



2 x PS/2 KB/MS ports



I/O Bracket

I/O BracketI/O Bracket



Standard



BIOS

BIOSBIOS



AMI BIOS ROM APTIO uEFI 4MB



Operating System

Operating SystemOperating System



Windows 7



Windows Embedded Standard 7



Windows Embedded POSReady 7



Windows XP



Windows Embedded Standard



Linux



Power

PowerPower



ATX Power connector

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EPIA



System Monitoring & Management

System Monitoring & ManagementSystem Monitoring & Management



Wake-on-LAN



Keyboard Power-on



Timer Power-on



System power management



AC power failure recovery



Watch Dog Timer

EPIA----M920

EPIAEPIA



Operating Conditions

Operating ConditionsOperating Conditions



Operating Temperature

Operating TemperatureOperating Temperature



0°C up to 60°C



Operating Humidity

Operating HumidityOperating Humidity



0% ~ 95% (relative humidity; non-condensing)



Form Factor

Form FactorForm Factor



Mini-ITX (8-layer)



17 cm x 17 cm



Compliance

ComplianceCompliance



FCC



BSMI



RoHS

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1.3. Layout Diagram

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Figure

Figure 1111: Layout diagram of the

: Layout diagram of the EPIA

Figure Figure

: Layout diagram of the : Layout diagram of the

EPIA----M920

M920 mainboard

EPIAEPIA

M920M920

mainboard (top view)

mainboard mainboard

(top view)

(top view) (top view)

EPIA

Item

Item Description

ItemItem

1 PS/2 keyboard and mouse pin header (JKBMS)

2 SMBus pin header (SMBUS1)

3 Digital I/O pin headers (DIO1)

4 VDD Power Select jumper (J9)

5 COM4 pin header

6 Front panel pin header (F_PANEL)

7 LVDS1 power select jumper (J14)

8 LVDS2 power select jumper (J15)

9 LVDS inverter connectors (INVERTER2)

10 LVDS inverter connectors (INVERTER1)

11 LVDS connectors (LVDS2)

12 LVDS connectors (LVDS1)

13 COM3 pin header

14 LPC pin header (LPC1)

15 System fan connector (SYSFAN)

16 VIA VX11H chipset 17 Memory slots (SODIMM2)

18 Memory slots (SODIMM1)

19 ATX power supply connector (ATX_POWER2)

20 CPU fan Connector (CPUFAN)

21 VIA Nano X4/ VIA Eden X2 CPU

22 USB pin header (USB_1)

23 USB pin header (USB_2)

24 PCIE x4 slot

25 Front audio pin header (F_AUDIO1)

26 SPDIF connector (SPDIF1)

27 SATA connector (SATA1)

28 SATA connector (SATA2)

29 SATA DOM power select jumper (J12) 30 Clear CMOS jumper (J10)

31 CMOS battery socket (BAT1)

32 USB3.0 Connector (J8)

33 COM3 and COM4 Voltage Select Jumper (J13)

34 COM1 and COM2 Voltage Select Jumper (J11)

35 External Thermal Resister jumper (J7)

36 SPI1 pin header

37 SPI Address Select jumper (J6)

38 COM2 pin header

Description

DescriptionDescription

EPIA----M920

EPIAEPIA

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EPIA

EPIA----M920

EPIAEPIA

1.4. Product Dimensions

Figure

Figure 2222: Mounting holes an

: Mounting holes and dimensions of the

Figure Figure

: Mounting holes an: Mounting holes an

d dimensions of the EPIA

d dimensions of the d dimensions of the

EPIA----M920

EPIAEPIA

M920 mainboard

mainboard

M920M920

mainboard mainboard

M920 User Manual

User Manual

M920 M920

User ManualUser Manual

Unit: mm

Figure

Figure 3333:

: External

External I/O

I/O port

port dimensions of the

Figure Figure

: :

External External

dimensions of the EPIA

I/O I/O

portport

dimensions of the dimensions of the

EPIA----M920

M920 mainboard

EPIAEPIA

M920M920

mainboard

mainboard mainboard

EPIA

EPIA----M920

EPIAEPIA

1.5. Height Distribution

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Figure

Figure 4444: Height distribution of the

: Height distribution of the EPIA

Figure Figure

: Height distribution of the : Height distribution of the

EPIA----M920

M920 mainboard

EPIAEPIA

M920M920

mainboard (for

mainboard mainboard

(for Qu

(for(for

Quad Core model

ad Core model))))

Qu Qu

ad Core modelad Core model

EPIA

Figure

Figure 5555: Height distribution of the EPIA

: Height distribution of the EPIA----M920

Figure Figure

: Height distribution of the EPIA: Height distribution of the EPIA

M920 mainboard

mainboard (for

M920M920

mainboard mainboard

(for Dual Core model

Dual Core model))))

(for(for

Dual Core model Dual Core model

EPIA----M920

EPIAEPIA

M920 User Manual

User Manual

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User ManualUser Manual

Note:

Note:Note:

All other heights are under 21.00 mm.

EPIA

2. I/O Interface

I/O Interface

2.2.

I/O InterfaceI/O Interface

The VIA EPIA-M920 has a wide selection of interfaces integrated into the

board. It includes a selection of frequently used ports as part of the external

I/O coastline.

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2.1. External I/O Ports

Figure

Figure 6666: External I/O ports

: External I/O ports

Figure Figure

: External I/O ports: External I/O ports

Item

Item Description

ItemItem

1 PS/2 mouse port

2 HDMI1 port

3 HDMI2 port

4 COM1 port

5 Gigabit Ethernet ports

6 Line-in 3.5 mm TRS jack

7 Line-out 3.5 mm TRS jack

8 PS/2 keyboard port

9 VGA port

10 USB 3.0 ports

11 USB 2.0 ports

12 Microphone 3.5 mm TRS jack

Description

DescriptionDescription

EPIA

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EPIAEPIA

M920 M920

User Manual

User ManualUser Manual

2.1.1. PS/2 Port

The mainboard has two integrated PS/2 ports for keyboard and mouse. Each

port is using the 6-pin Mini-DIN connector. The color purple is used for a PS/2

keyboard while the color green is used for a PS/2 mouse. The pinout of the

PS/2 port are shown below.

Signal

PinPin

SignalSignal

1 Data

2 NC

3 Ground

4 +5V

5 Clock

6 NC

Table

Table 1111: PS/2 port pinout

: PS/2 port pinout

TableTable

: PS/2 port pinout: PS/2 port pinout

Figure

Figure 7777:

Figure Figure

: PS/2

PS/2 port pinout diagram

: :

PS/2PS/2

port pinout diagram

port pinout diagram port pinout diagram

EPIA

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M920 User Manual

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2.1.2. HDMI

Port

The integrated 19-pin HDMI® port uses an HDMI® Type A receptacle

connector as defined in the HDMI

specification. The HDMI® (High Definition

Multimedia Interface) port is for connecting the high definition video and

digital audio. It allows you to connect the digital video devices which utilize a

high definition video signal. The pinout of the HDMI

port is shown below.

Figure

Figure 8888: HDMI

Figure Figure

Table

ble 2222: HDMI

TaTa

ble ble

®®®®

: HDMI

port pinout diagram

: HDMI: HDMI

port pinout diagram port pinout diagram

®®®®

: HDMI

port pinout

: HDMI: HDMI

port pinout port pinout

Signal

Signal Pin

PinPin

SignalSignal

1 TX2+ 2 Ground

3 TX2- 4 TX1+

5 Ground 6 TX1-

7 TX0+ 8 Ground

9 TX0- 10 TXC+

11 Ground 12 TXC-

13 key 14 key

15 DDCSCL 16 DDCSDA

17 Ground 18 +5V

19 Hot Plug Detect

PinPin

Signal

SignalSignal

EPIA

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2.1.3. COM Port

The integrated 9-pin COM port uses a male DE-9 connector. The COM

(COM1) port supports the RS-232 standard. The pinout of the COM port is

shown below.

Figure

Figure 9999: CO

: COM port pinout diagram

Figure Figure

Table

Table 3333:

Table Table

M port pinout diagram

: CO: CO

M port pinout diagramM port pinout diagram

Signal

Signal Pin

PinPin

SignalSignal

1 DCD 6 DSR

2 RxD 7 RTS

3 TxD 8 CTS

4 DTR 9 RI

5 GND

: COM port pinout

COM port pinout

: :

COM port pinoutCOM port pinout

PinPin

Signal

SignalSignal

EPIA

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2.1.4. RJ45 LAN port: Gigabit Ethernet

The integrated 8-pin Gigabit Ethernet port is using an 8 Position 8 Contact

(8P8C) receptacle connector (commonly referred to as RJ45). The pinout of

the Gigabit Ethernet port is shown below.

Signal

PinPin

SignalSignal

1 Signal pair 1+

2 Signal pair 1-

3 Signal pair 2+

4 Signal pair 3+

5 Signal pair 3-

6 Signal pair 2-

7 Signal pair 4+

8 Signal pair 4-

Table

Table 4444: Gigabit Ethernet port pinout

: Gigabit Ethernet port pinout

Table Table

: Gigabit Ethernet port pinout: Gigabit Ethernet port pinout

Figure

Figure 10

10: Gigabit Ethernet port pinout diagram

Figure Figure

There are two RJ-45 ports and each port has two individual LED indicators

located on the front side to show its Active/Link status and Speed status.

: Gigabit Ethernet port pinout diagram

1010

: Gigabit Ethernet port pinout diagram: Gigabit Ethernet port pinout diagram

Active LED

(Left LED on RJ

(Left LED on RJ----45 connector)

(Left LED on RJ(Left LED on RJ

Link Off Off The LED is always On in Orange color

Speed_10Mbit Flash in Green color The LED is always On in Orange color

Speed_100Mbit Flash in Green color The LED is always On in Green color

Speed_1000Mbit Flash in Green color The LED is always On in Red color

Table

Table 5555: Gigabit Ethernet LED color de

: Gigabit Ethernet LED color definition

Table Table

: Gigabit Ethernet LED color de: Gigabit Ethernet LED color de

Active LED

Active LEDActive LED

45 connector)

45 connector)45 connector)

finition

finitionfinition

Link LED

Link LEDLink LED

(Right LED on RJ

(Right LED on RJ----45 connector)

(Right LED on RJ(Right LED on RJ

45 connector)

45 connector)45 connector)

EPIA

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2.1.5. Audio Ports

There are three audio jack receptacles integrated into a single stack on the I/O

coastline. Each receptacle can fit a 3.5 mm Tip Ring Sleeve (TRS) connector to

enable connections to Line-in, Line-out, and MIC-in.

Wiring

WiringWiring

Tip Left channel in Left channel Left channel

Ring Right channel in Right channel Right channel

Sleeve Ground Ground Ground

Table

Table 6666: Audio jack receptacle pinout

Table Table

Line

Line----in

in Line

LineLine

inin

: Audio jack receptacle pinout

: Audio jack receptacle pinout: Audio jack receptacle pinout

Line----out

out MIC

LineLine

outout

MIC----in

MICMIC

inin

Figure

Figure 11

Figure Figure

11: Audio jack receptacle stack

1111

: Audio jack receptacle stack

: Audio jack receptacle stack: Audio jack receptacle stack

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VIA Technologies EPIA-M920-10E, EPIA-M920-12Q User Manual

Specifications and Main Features

Frequently Asked Questions

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