VIA Technologies EPIA-M920 User manual

2.03-09022015-094800
USER MANUAL
EPIA-M920
Mini-ITX embedded board

Tested To Comply
With FCC Standards
FOR HOME OR OFFICE USE
Copyright
Copyright © 2013 – 2015 VIA Technologies Incorpor ted. All rights reserved.
No p rt of this document m y be reproduced, tr nsmitted, tr nscribed, stored in retriev l system, or tr nsl ted into ny l ngu ge,
in ny form or by ny me ns, electronic, mech nic l, m gnetic, optic l, chemic l, m nu l or otherwise without the prior written
permission of VIA Technologies, Incorpor ted.
Trademarks
All tr dem rks re the property of their respective holders.
Disclaimer
No license is gr nted, implied or otherwise, under ny p tent or p tent rights of VIA Technologies. VIA Technologies m kes no
w rr nties, implied or otherwise, in reg rd to this document nd to the products described in this document. The inform tion
provided in this document is believed to be ccur te nd reli ble s of the public tion d te of this document. However, VIA
Technologies ssumes no responsibility for the use or misuse of the inform tion (including use or connection of extr
device/equipment/ dd-on c rd) in this document nd for ny p tent infringements th t m y rise from the use of this document.
The inform tion nd product specific tions within this document re subject to ch nge t ny time, without notice nd without
oblig tion to notify ny person of such ch nge.
VIA Technologies, Inc. reserves the right the m ke ch nges to the products described in this m nu l t ny time without prior
notice.
Regulatory Compliance
FCC
FCCFCC
FCC-
--
-A Radio Frequency Interference Statement
A Radio Frequency Interference Statement A Radio Frequency Interference Statement
A Radio Frequency Interference Statement
This equipment h s been tested nd found to comply with the limits for cl ss A digit l device, pursu nt to p rt 15 of the FCC
rules. These limits re designed to provide re son ble protection g inst h rmful interference when the equipment is oper ted in
commerci l environment. This equipment gener tes, uses, nd c n r di te r dio frequency energy nd, if not inst lled nd used in
ccord nce with the instruction m nu l, m y c use h rmful interference to r dio communic tions. Oper tion of this equipment in
residenti l re is likely to c use h rmful interference, in which c se the user will be required to correct the interference t his
person l expense.
Notice 1
Notice 1Notice 1
Notice 1
The ch nges or modific tions not expressly pproved by the p rty responsible for compli nce could void the user's uthority to
oper te the equipment.
Notice 2
Notice 2Notice 2
Notice 2
Shielded interf ce c bles nd A.C. power cord, if ny, must be used in order to comply with the emission limits.
Notice 3
Notice 3Notice 3
Notice 3
The product described in this document is designed for gener l use, VIA Technologies ssumes no responsibility for the conflicts
or d m ges rising from incomp tibility of the product. Check comp tibility issue with your loc l s les represent tives before
pl cing n order.

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.
 eep this User's Manual for future reference.
 All cautions and warnings on the equipment should be noted.
 eep 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

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Box Contents and Ordering Information
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-10E
10E10E
10E
 1 x EPIA-M920 mainboard (with VIA Eden™ X2 1.0 GHz processor)
 1 x SATA cable
 1 x I/O bracket
EPIA
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-M920
M920M920
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-16QE
16QE16QE
16QE
 1 x EPIA-M920 mainboard (with VIA Eden™ X4 1.6 GHz processor)
 1 x SATA cable
 1 x I/O bracket
EPIA
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-M920
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-20Q
20Q20Q
20Q
 1 x EPIA-M920 mainboard (with VIA QuadCore 2.0 GHz processor)
 1 x SATA cable
 1 x I/O bracket

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Table of Contents
1.
1.1.
1. Product Overview
Product OverviewProduct Overview
Product Overview................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................ 1
11
1
1.1. Key Features and Benefits........................................................................... 2
1.1.1. VIA QuadCore/VIA Eden
™
X4/VIA Eden
™
X2 Processor............... 2
1.1.2. VIA VX11H SPIII Chipset.................................................................... 3
1.1.3. odular Expansion Options................................................................. 3
1.2. Product Specifications................................................................................. 4
1.3. Layout Diagram ............................................................................................. 7
1.4. Product Dimensions..................................................................................... 9
1.5. Height Distribution..................................................................................... 10
2.
2.2.
2. I/O Interface
I/O InterfaceI/O Interface
I/O Interface................................
................................................................
................................................................
................................................................
................................................................
................................................................
........................................
................
........ 12
1212
12
2.1. External I/O Ports ....................................................................................... 12
2.1.1. PS/2 Port.................................................................................................. 13
2.1.2. HD I
®
Port............................................................................................. 14
2.1.3. CO Connector.................................................................................... 15
2.1.4. RJ-45 LAN Port: Gigabit Ethernet ...................................................... 16
2.1.5. Audio Ports............................................................................................. 17
2.1.6. VGA Connector..................................................................................... 18
2.1.7. USB 2.0 Port ........................................................................................... 19
2.1.8. USB 3.0 Port ........................................................................................... 20
2.2. Onboard Connectors ................................................................................ 21
2.2.1. ATX Power Connector......................................................................... 21
2.2.2. LVDS Panel Connectors....................................................................... 22
2.2.3. LVDS Inverter Connector .................................................................... 25
2.2.4. Digital I/O Pin Header.......................................................................... 27
2.2.5. External Thermal Resister Pin Header .............................................. 28
2.2.6. Front Panel Pin Header ........................................................................ 29
2.2.7. S Bus Pin Header................................................................................. 31
2.2.8. CPU and System Fan Connectors ...................................................... 32
2.2.9. SATA Connectors ................................................................................. 34

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2.2.10. USB 2.0 Pin Headers............................................................................. 35
2.2.11. CO Pin Header for CO 2~CO 4 ................................................ 36
2.2.12. PS/2 Keyboard and ouse Pin Header ............................................ 37
2.2.13. Front Audio Pin Header....................................................................... 38
2.2.14. SPI Address Select Pin Header .......................................................... 39
2.2.15. SPI Pin Header ....................................................................................... 40
2.2.16. LPC Pin Header ...................................................................................... 41
2.2.17. SPDIF Connector ................................................................................... 42
2.2.18. C OS Battery Slot................................................................................ 43
2.2.19. USB 3.0 Connector ............................................................................... 44
3.
3.3.
3. Ju pers
Ju persJu pers
Ju pers ................................
................................................................
................................................................
................................................................
................................................................
................................................................
...............................................
..............................
............... 45
4545
45
3.1. Clear C OS Jumper.................................................................................. 47
3.2. SATA DO Power Select Jumper ......................................................... 48
3.3. CO 1 and CO 2 Voltage Select Jumper........................................... 49
3.4. CO 3 and CO 4 Voltage Select Jumper........................................... 50
3.5. VDD Power Select ..................................................................................... 51
3.6. LVDS Jumper Settings ............................................................................... 52
4.
4.4.
4. Expansion Slots
Expansion SlotsExpansion Slots
Expansion Slots ................................
................................................................
................................................................
................................................................
................................................................
................................................................
..................................
....
.. 53
5353
53
4.1. DDR3 emory Slots .................................................................................. 53
4.1.1. Installing a emory odule .............................................................. 54
4.1.2. Removing a emory odule ............................................................. 55
4.1.3. PCI Express Slot .................................................................................... 56
5.
5.5.
5. Hardware Installation
Hardware InstallationHardware Installation
Hardware Installation ................................
................................................................
................................................................
................................................................
........................................................
................................................
........................ 57
5757
57
5.1. Installing into a Chassis............................................................................. 57
5.1.1. Suggested minimum chassis dimensions ......................................... 57
5.1.2. Suggested minimum chassis height................................................... 58
5.1.3. Suggested keepout areas .................................................................... 60
6.
6.6.
6. BIOS Setup Utility
BIOS Setup UtilityBIOS Setup Utility
BIOS Setup Utility................................
................................................................
................................................................
................................................................
..............................................................
............................................................
.............................. 61
6161
61
6.1. Entering the BIOS Setup Utility............................................................... 61

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6.2. Control Keys................................................................................................ 61
6.3. Navigating the BIOS enus ..................................................................... 62
6.4. Getting Help................................................................................................ 62
6.5. ain enu ................................................................................................... 63
6.5.1. BIOS Information ................................................................................... 63
6.5.2. emory Information............................................................................. 63
6.5.3. System Language................................................................................... 63
6.5.4. System Date............................................................................................ 64
6.5.5. System Time ........................................................................................... 64
6.6. Advanced Settings ..................................................................................... 65
6.6.1. ACPI Settings.......................................................................................... 66
6.6.2. S5 RTC Wake Settings .......................................................................... 67
6.6.3. CPU Information .................................................................................... 68
6.6.4. SATA Configuration.............................................................................. 69
6.6.5. F71869 Super IO Configuration ......................................................... 70
6.6.6. F71869 H/W onitor ........................................................................... 71
6.6.7. Clock Generator Configuration.......................................................... 72
6.6.8. On Board Configuration ...................................................................... 73
6.7. Chipset Settings .......................................................................................... 75
6.7.1. DRA Configuration ............................................................................ 76
6.7.2. Video Configuration ............................................................................. 79
6.7.3. UART Configuration.............................................................................. 81
6.7.4. P U_ACPI Configuration .................................................................... 82
6.7.5. HDAC Configuration ............................................................................ 84
6.7.6. SDIO_CR Configuration ....................................................................... 85
6.7.7. Others Configuration............................................................................ 87
6.8. Boot Settings ............................................................................................... 88
6.8.1. Boot Configuration................................................................................ 88
6.8.2. Boot Option Priorities .......................................................................... 89
6.8.3. Network Device BBS Priorities ........................................................... 89
6.9. Security Settings ......................................................................................... 90
6.9.1. Security Settings .................................................................................... 90
6.10. Save & Exit Options ................................................................................... 92

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6.10.1. Save Changes and Exit ......................................................................... 92
6.10.2. Discard Changes and Exit.................................................................... 92
6.10.3. Save Changes and Reset...................................................................... 92
6.10.4. Discard Changes and Reset................................................................. 93
6.10.5. Save Changes ......................................................................................... 93
6.10.6. Discard Changes.................................................................................... 93
6.10.7. VIA Networking Bootagent................................................................. 93
6.10.8. Launch EFI Shell from filesystem device ......................................... 93
7.
7.7.
7. Driver Installation
Driver InstallationDriver Installation
Driver Installation................................
................................................................
................................................................
................................................................
...............................................................
..............................................................
............................... 94
9494
94
7.1. icrosoft Driver Support.......................................................................... 94
7.2. Linux Driver Support.................................................................................. 94
Appendix A. Power Consu ption Report
Appendix A. Power Consu ption ReportAppendix A. Power Consu ption Report
Appendix A. Power Consu ption Report................................
................................................................
...............................................................
..............................................................
............................... 95
9595
95
A.1. EPIA- 920 Rev. 2 DVT ATX POWER ............................................................ 95
A.1.1. Playing DVD – Power DVD 5.0 ............................................................... 95
A.1.2. Playing P3- edia Player ........................................................................ 96
A.1.3. Running Network Application ................................................................. 96
A.1.4. IDLE................................................................................................................ 96
A.1.5. RUN Burn-in Test ........................................................................................ 97
A.1.6. S3.................................................................................................................... 97
A.1.7. S5.................................................................................................................... 98
A.1.8. EuP/ErP Enable S3 ...................................................................................... 98
A.1.9. EuP/ErP Enable S5 ...................................................................................... 99

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Lists of igures
Figure 1: Layout diagram of EPIA- 920 mainboard (top view) ............................. 7
Figure 2: ounting holes and dimensions of the EPIA- 920 mainboard............ 9
Figure 3: External I/O port dimensions of the EPIA- 920 mainboard ................. 9
Figure 4: Height distribution of the EPIA- 920 mainboard (for fan model).......... 10
Figure 5: Height distribution of the EPIA- 920 mainboard (for fanless model) ... 11
Figure 6: External I/O ports........................................................................................... 12
Figure 7: PS/2 port diagram........................................................................................... 13
Figure 8: HD I
®
port diagram...................................................................................... 14
Figure 9: CO connector diagram.............................................................................. 15
Figure 10: Gigabit Ethernet port diagram .................................................................. 16
Figure 11: Audio jack receptacle stack....................................................................... 17
Figure 12: VGA connector diagram............................................................................. 18
Figure 13: USB 2.0 port diagram .................................................................................. 19
Figure 14: USB 3.0 port diagram .................................................................................. 20
Figure 15: ATX power connector diagram................................................................ 21
Figure 16: LVDS panel connector diagram................................................................ 22
Figure 17: LVDS Inverter connector diagram ............................................................ 25
Figure 18: Digital I/O pin header diagram ................................................................. 27
Figure 19: External Thermal Resister pin header diagram...................................... 28
Figure 20: Front panel pin header diagram ............................................................... 29
Figure 21: S Bus pin header diagram ........................................................................ 31
Figure 22: CPU and System fan connector diagrams............................................... 32
Figure 23: SATA connector diagrams ......................................................................... 34
Figure 24: USB 2.0 pin header diagrams .................................................................... 35
Figure 25: CO pin header diagrams......................................................................... 36
Figure 26: PS/2 keyboard and mouse pin header diagram .................................... 37
Figure 27: Front audio pin header ............................................................................... 38
Figure 28: SPI address select pin header diagram ................................................... 39
Figure 29: SPI pin header diagram ............................................................................... 40
Figure 30: LPC pin header diagram ............................................................................. 41
Figure 31: SPDIF connector diagram ........................................................................... 42

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Figure 32: C OS battery slot diagram....................................................................... 43
Figure 33: USB 3.0 connector diagram ....................................................................... 44
Figure 34: Jumper settings example............................................................................ 45
Figure 35: CLEAR C OS jumper diagram ................................................................. 47
Figure 36: SATA DO voltage select jumper diagram.......................................... 48
Figure 37: CO 1 and CO 2 voltage select jumper diagram .............................. 49
Figure 38: CO 3 and CO 4 voltage select jumper diagram .............................. 50
Figure 39: VDD power select jumper diagram......................................................... 51
Figure 40: LVDS jumper diagrams................................................................................ 52
Figure 41: DDR3 memory slot diagrams .................................................................... 53
Figure 42: Inserting the memory module................................................................... 54
Figure 43: Locking the memory module .................................................................... 54
Figure 44: Disengaging the SODI locking clips ................................................. 55
Figure 45: Removing the memory module ................................................................ 55
Figure 46: PCI Express slot diagram............................................................................ 56
Figure 47: Suggested minimum chassis dimensions ................................................ 57
Figure 48: Suggested minimum internal chassis ceiling height (for fanless
model) ............................................................................................................................... 58
Figure 49: Suggested minimum internal chassis ceiling height (for fan model)59
Figure 50: Suggested keepout areas ........................................................................... 60
Figure 51: Illustration of the ain menu screen....................................................... 63
Figure 52: Illustration of the Advanced Settings screen......................................... 65
Figure 53: Illustration of the ACPI Settings screen .................................................. 66
Figure 54: Illustration of S5 RTC Wake Settings screen.......................................... 67
Figure 55: Illustration of CPU Information screen.................................................... 68
Figure 56: Illustration of SATA Configuration screen ............................................. 69
Figure 57: Illustration of F71869 Super IO Configuration screen......................... 70
Figure 58: Illustration of F71869 H/W onitor screen ........................................... 71
Figure 59: Illustration of Clock Generator Configuration screen ......................... 72
Figure 60: Illustration of On Board Configuration screen ...................................... 73
Figure 61: Illustration of Chipset Settings screen..................................................... 75
Figure 62: Illustration of DRA Configuration screen ............................................ 76
Figure 63: Illustration of Video Configuration screen ............................................. 79

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Figure 64: Illustration of UART Configuration screen ............................................. 81
Figure 65: Illustration of P U_ACPI Configuration screenOther Control.......... 82
Figure 66: Illustration of Other Control screen........................................................ 82
Figure 67: Illustration of HDAC Configuration screen ............................................ 84
Figure 68: Illustration of SDIO_CR Configuration screen....................................... 85
Figure 69: Illustration of Others Configuration screen ........................................... 87
Figure 70: Illustration of Boot Settings screen.......................................................... 88
Figure 71: Illustration of Security Settings screen.................................................... 90
Figure 72: Illustration of Save & Exit Options screen ............................................. 92

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Lists of Tables
Table 1: PS/2 port pinout .............................................................................................. 13
Table 2: HD I
®
port pinout ......................................................................................... 14
Table 3: CO connector pinout ................................................................................. 15
Table 4: Gigabit Ethernet port pinout ........................................................................ 16
Table 5: Gigabit Ethernet LED color definition........................................................ 16
Table 6: Audio jack receptacle pinout....................................................................... 17
Table 7: VGA connector pinout .................................................................................. 18
Table 8: USB 2.0 port pinout........................................................................................ 19
Table 9: USB 3.0 port pinout........................................................................................ 20
Table 10: ATX power connector pinout ................................................................... 21
Table 11: LVDS1 panel connector pinout................................................................. 23
Table 12: LVDS2 panel connector pinout................................................................. 24
Table 13: LVDS Inverter connector pinout................................................................ 26
Table 14: Digital I/O pin header pinout .................................................................... 27
Table 15: External Thermal Resister pin header pinout ......................................... 28
Table 16: Front panel pin header pinout................................................................... 30
Table 17: S Bus pin header pinout............................................................................ 31
Table 18: CPU and System fan connector pinouts .................................................. 33
Table 19: SATA connector pinouts............................................................................. 34
Table 20: USB 2.0 pin header pinouts........................................................................ 35
Table 21: CO pin header pinout.............................................................................. 36
Table 22: PS/2 keyboard and mouse pin header pinout........................................ 37
Table 23: Front audio pin header pinout................................................................... 38
Table 24: SPI address select pin header pinout....................................................... 39
Table 25: SPI pin header pinout .................................................................................. 40
Table 26: LPC pin header pinout................................................................................. 41
Table 27: SPDIF connector pinout .............................................................................. 42
Table 28: C OS battery slot pinout .......................................................................... 43
Table 29: USB 3.0 connector pinout........................................................................... 44
Table 30: CLEAR C OS jumper settings................................................................... 47
Table 31: SATA DO voltage select jumper settings ........................................... 48

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Table 32: CO 1 and CO 2 voltage select jumper settings ............................... 49
Table 33: CO 3 and CO 4 voltage select jumper settings ............................... 50
Table 34: VDD power select pinout .......................................................................... 51
Table 35: LVDS jumper settings................................................................................... 52

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1.
1.1.
1. Product Overview
Product OverviewProduct Overview
Product Overview
The VIA EPIA- 920 ini-ITX mainboard is a high performance native x86
mainboard designed mainly for embedded, POS, Kiosk, AT 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
SPIII ( edia System Processor) chipset that features the VIA Chrome™ 640
DX11 with 2D/3D graphics and video accelerators for rich digital media
performance.
The VIA EPIA- 920 includes a powerful, secure, and efficient VIA Eden™ X2 /
VIA QuadCore/VIA Eden™ X4 processor. The VIA Eden™ X2 processor
includes the VIA Padlock Security Engine, VIA CoolStream™ Architecture, VIA
StepAhead™ Technology Suite, and VIA TwinTurbo™ technology. Whereas
the VIA QuadCore/VIA Eden™ X4 processor includes the VIA AES Security
Engine, VIA CoolStream™ Architecture and VIA PowerSaver™ Technology.
The VIA EPIA- 920 has two 1333 Hz DDR3 SODI slots that support up
to 16 GB memory size. The VIA EPIA- 920 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.
The VIA EPIA- 920 is compatible with a full range of ini-ITX chassis as well
as FlexATX and icroATX enclosures and power supplies. The VIA EPIA-
920 is fully compatible with icrosoft® and Linux operating systems.

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1.1. Key Features and Benefits
1.1.1. VIA QuadCore/VIA Eden
™
X4/VIA Eden
™
X2
Processor
The VIA QuadCore/VIA Eden™ X4 is a 64-bit superscalar x86 quad core
processor combine on two dies. It is based on advanced 28 nanometer
process technology packed into an ultra compact NanoBGA2 package
measuring 21 mm x 21 mm. The VIA QuadCore/VIA Eden™ X4 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 21 mm x 21 mm), it delivers an energy-efficient yet
powerful performance, with cool and quiet operation.
Note:
Note:Note:
Note:
For Windows 7 nd Windows Server 2008 R2 users only:
If encounter the issue such s the oper ting system recognize the VIA Du l-Core CPU s two processors
inste d of one processor with two cores. Downlo d nd inst ll the hotfix rele sed by Microsoft to
ddress this issue. The downlo d ble hotfix is v il ble t http://support microsoft com/kb/2502664
http://support microsoft com/kb/2502664http://support microsoft com/kb/2502664
http://support microsoft com/kb/2502664
VIA QuadCore, VIA Eden™ X4 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 Ch pset
The VIA VX11H is the fourth generation, highly integrated edia System
Processor which provides high quality digital video streaming and high
definition video playback. It features the VIA Chrome™ 640 DX11 2D/3D
graphics and video processor, High Definition video decoder 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 Expans on Opt ons
The VIA EPIA- 920 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- 920 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- 920 obtain the maximum benefits
from its past investments in PCI expansion cards.
The VIA EPIA- 920 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
Processor
 VIA Eden™ X2 1.0 GHz processor (for EPIA-M920-10E S U)-fanless
 VIA Eden™ X4 1.6 GHz processor (for EPIA-M920-16QE S U)-fanless
 VIA QuadCore 2.0 GHz processor (for EPIA-M920-20Q S U)-fan
 Chipset
ChipsetChipset
Chipset
 VIA VX11H MSPIII 33 mm x 33 mm
 System Memory
System MemorySystem Memory
System Memory
 2 x DDR3 1333 SODIMM
 Supports up to 16 GB memory size
Note:
Note:Note:
Note:
The re l memory size m y show less th n 16GB due to some c p city re used for BIOS or other
functions.
 Graphics
GraphicsGraphics
Graphics
 Integrated VIA Chrome
™
640 HD DX11 3D/2D graphics with MPEG2, WMV9/VC1,
H.264 decoding acceleration
 On
OnOn
Onboard Peripherals
board Peripheralsboard Peripherals
board Peripherals
 Serial ATA
Serial ATASerial ATA
Serial ATA
 2 x SATA connectors
 Onboard LAN
Onboard LANOnboard LAN
Onboard LAN
 Realtek-RTL8111G Gigabit Ethernet Controller (for EPIA-M920-16QE & EPIA-
M920-20Q)
 VT6130 (for EPIA-M920-10E)
 Onboard Audio
Onboard AudioOnboard Audio
Onboard Audio
 VIA VT2021 High Definition Audio Codec
 Onboard Super I/O
Onboard Super I/OOnboard Super I/O
Onboard Super I/O
 Fintek F71869E
 Onboard I/O Connectors
Onboard I/O ConnectorsOnboard I/O Connectors
Onboard I/O Connectors
 2 x USB 2.0 pin headers for 4 ports
 1 x USB 3.0 pin header for 1 port
 2 x SATA connectors
 2 x SATA DOM Power selectors

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 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
 1 x Front audio pin header (Line-out/Mic-in)
 1 x PS/2 keyboard/mouse pin header
 3 x RS-232 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
 Bac Panel I/O
Bac Panel I/OBac Panel I/O
Bac Panel I/O
 2 x USB 3.0 ports
 2 x USB 2.0 ports
 2 x HDMI ports
 1 x VGA ports
 1 x COM (powered with selectable 5V/12V)
 2 x Gigabit Ethernet ports
 3 x Audio jacks: Line-in, Line-out, and Mic-in
 2 x PS/2 keyboard/mouse ports
 I/O Brac et
I/O Brac etI/O Brac et
I/O Brac et
 Standard
 BIOS
BIOSBIOS
BIOS
 AMI Aptio UEFI BIOS, 4MB Flash memory
 Operating System
Operating SystemOperating System
Operating System
 Windows 8.1/8/7
 Windows Embedded Standard 7
 Windows Embedded POSReady 7
 Linux
 Power
PowerPower
Power
 ATX Power connector

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 System Monitoring & Management
System Monitoring & ManagementSystem Monitoring & Management
System Monitoring & Management
 Wake-on-LAN
 eyboard Power-on
 Timer Power-on
 System power management
 AC power failure recovery
 Watch Dog Timer
 Operating C
Operating COperating C
Operating Conditions
onditionsonditions
onditions
 Operating Temperature
Operating TemperatureOperating Temperature
Operating Temperature
 0°C up to 60°C
 Operating Humidity
Operating HumidityOperating Humidity
Operating Humidity
 0% ~ 95% (relative humidity; non-condensing)
 Form Factor
Form FactorForm Factor
Form Factor
 Mini-ITX (8-layer)
 17 cm x 17 cm
 Compliance
ComplianceCompliance
Compliance
 CE
 FCC
Note:
Note:Note:
Note:
As the oper ting temper ture provided in the specific tions is result of the test performed in VIA’s
ch mber, number of v ri bles c n influence this result. Ple se note th t the working temper ture m y
v ry depending on the ctu l situ tion nd environment. It is highly suggested to execute solid
testing nd t ke ll the v ri bles into consider tion when building the system. Ple se ensure th t the
system runs well under the oper ting temper ture in terms of pplic tion.

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1.3. Layout Diagram
Figure
Figure Figure
Figure 1
11
1: Layout diagram of EPIA
: Layout diagram of EPIA: Layout diagram of EPIA
: Layout diagram of EPIA-
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M920 mainboard (top viewM920 mainboard (top view
M920 mainboard (top view)
))
)