VIA Technologies EPIA-M900 User Manual
USER MANUAL
EPIA-M900
Mini-ITX embedded board
1.48-06222012-110400
Copyright
Copyright © 2010-2012 VIA Technologies Incorporated. All rights reserved.
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.
PS/2 is a registered trademark of IBM Corporation.
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 in this document and for any patent infringements
that may arise from the use of this document. 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 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 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.
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
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Box Contents and Ordering Information
Model Number
Model Number CPU Frequency
Model NumberModel Number
EPIA-M900-16L 1.6GHz Nano™ X2 Standard kit
EPIA-M900-12LQ 1.2GHz QuadCore Standard kit
CPU Frequency Description
CPU FrequencyCPU Frequency
Description
DescriptionDescription
1 x SATA cable
1 x I/O bracket
1 x SATA cable
1 x I/O bracket
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Table of Contents
1.
1. Product Overview
Product Overview................................
1.1.
Product OverviewProduct Overview
1.1.
Key Features and Benefits......................................................................... 14
1.1.1. VIA Nano™ X2 / VIA QuadCore Processor ..................................... 14
1.1.2. VIA VX900 Chipset............................................................................... 14
1.1.3. Modular Expansion Options............................................................... 15
1.2.
Product Specifications............................................................................... 16
1.3.
Layout Diagram ........................................................................................... 19
1.4.
Product Dimensions................................................................................... 21
1.5.
Height Distribution..................................................................................... 22
2.
2. I/O Interface
I/O Interface................................
2.2.
I/O InterfaceI/O Interface
2.1.
External I/O Ports ....................................................................................... 23
2.1.1. HDMI® Port............................................................................................. 24
2.1.2. VGA Port................................................................................................. 25
2.1.3. COM Port................................................................................................ 26
2.1.4. USB Ports ................................................................................................27
2.1.5. Gigabit Ethernet Port............................................................................ 27
2.1.6. Audio Ports.............................................................................................28
2.2.
Onboard Connectors ................................................................................29
2.2.1. ATX Power Connector......................................................................... 29
2.2.2. CMOS Battery Slot................................................................................ 30
2.2.3. Front Panel Pin Header ........................................................................ 31
2.2.4. SMBus Pin Header................................................................................. 32
2.2.5. MFX Pin Header..................................................................................... 33
2.2.6. Smart Fan Connectors .......................................................................... 34
2.2.7. SATA Connectors .................................................................................35
2.2.8. USB Pin Headers.................................................................................... 36
2.2.9. USB Device Port Pin Header............................................................... 36
2.2.10. COM Pin Headers ................................................................................. 37
2.2.11. PS/2 Keyboard and Mouse Pin Header ............................................38
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2.2.12. LVDS Connector.................................................................................... 39
2.2.13. Inverter Connector................................................................................ 40
2.2.14. Front Audio Pin Header ....................................................................... 41
2.2.15. SPDIF Connector ................................................................................... 42
2.2.16. Digital I/O Pin Header.......................................................................... 43
2.2.17. SPI Pin Header .......................................................................................44
2.2.18. LPC Pin Header ...................................................................................... 45
3.
3. Jumpers
Jumpers ................................
3.3.
JumpersJumpers
3.1.
3.2.
4.
4. Expansion Slots
Expansion Slots................................
4.4.
Expansion SlotsExpansion Slots
4.1.
4.1.1. Installing a Memory Module .............................................................. 50
4.1.2. Removing a Memory Module............................................................. 51
4.2.
4.3.
5.
5. Hardware Installation
Hardware Installation ................................
5.5.
Hardware InstallationHardware Installation
5.1.
5.1.1. Suggested minimum chassis dimensions ......................................... 55
5.1.2. Suggested minimum chassis height................................................... 56
5.1.3. Suggested keepout areas .................................................................... 57
................................................................
................................................................
Backlight and Panel Power Select Jumper ........................................... 47
Clear CMOS Jumper.................................................................................. 48
................................................................
................................................................
DDR3 Memory Slots .................................................................................. 49
PCI Express Slot.......................................................................................... 52
PCI Slot ......................................................................................................... 53
Installing into a Chassis............................................................................. 55
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6.
6. BIOS Setup Utility
BIOS Setup Utility................................
6.6.
BIOS Setup UtilityBIOS Setup Utility
6.1.
Entering the BIOS Setup Utility............................................................... 59
6.2.
Control Keys................................................................................................ 59
6.3.
Getting Help................................................................................................ 60
6.4.
System Overview........................................................................................ 61
6.4.1. AMIBIOS.................................................................................................. 61
6.4.2. Processor................................................................................................. 61
6.4.3. System Memory ..................................................................................... 61
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6.4.4. System Time ........................................................................................... 61
6.4.5. System Date............................................................................................ 62
6.5.
Advanced Settings ..................................................................................... 63
6.5.1. CPU Configuration ................................................................................64
6.5.2. SATA Configuration.............................................................................. 66
6.5.3. SuperIO Configuration ......................................................................... 68
6.5.4. Hardware Health Configuration ........................................................69
6.5.5. ACPI Configuration ............................................................................... 70
6.5.6. APM Configuration................................................................................ 72
6.5.7. Event Logging Configuration ..............................................................76
6.5.8. Spread Spectrum Configuration ........................................................77
6.5.9. USB Configuration................................................................................. 78
6.5.10. CRB Configuration................................................................................. 79
6.6.
Boot Settings ............................................................................................... 83
6.6.1. Boot Settings Configuration ................................................................ 83
6.6.2. Boot Device Priority.............................................................................. 85
6.7.
Security Settings ......................................................................................... 86
6.7.1. Change Supervisor Password ............................................................. 86
6.7.2. User Access Level................................................................................. 86
6.7.3. Change User Password ........................................................................ 87
6.7.4. Clear User Password ............................................................................ 87
6.7.5. Password Check .................................................................................... 87
6.8.
Exit Options.................................................................................................89
6.8.1. Save Changes and Exit ......................................................................... 89
6.8.2. Discard Changes and Exit.................................................................... 89
6.8.3. Discard Changes.................................................................................... 89
6.8.4. Load Optimal Defaults ........................................................................ 89
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7. Driver Installation
Driver Installation................................
7.7.
Driver InstallationDriver Installation
7.1.
Microsoft Driver Support.......................................................................... 91
7.2.
Linux Driver Support.................................................................................. 91
Appendix A. Power Consumption Report
Appendix A. Power Consumption Report................................
Appendix A. Power Consumption ReportAppendix A. Power Consumption Report
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A.1. EPIA-M900-16L ...................................................................................................93
A.1.1. PassMark (CPU Usage = 100%) ............................................................... 93
A.1.2. Power DVD 10 (H.264, 1080i)................................................................. 93
A.1.3. Power DVD 10 (MPEG2, 1080p)............................................................. 94
A.1.4. Power DVD 10 (WMV9, 1920x1080)..................................................... 94
A.1.5. Idle (Windows 7, 64-bit) .......................................................................... 94
A.2. EPIA-M900-12LQ ................................................................................................ 95
A.2.1. PassMark (CPU Usage = 100%) ............................................................... 95
A.2.2. Power DVD 10 to Player H.264 1080P movie .....................................95
A.2.3. Power DVD 10 to Player MPEG2 1080P Movie ................................... 96
A.2.4. Power DVD 10 to Player WMV9 1080P Movie.................................... 96
A.2.5. Idle (Windows 7, 64-bit) .......................................................................... 96
Appendix B. Riser Card Modules
Appendix B. Riser Card Modules ................................
Appendix B. Riser Card ModulesAppendix B. Riser Card Modules
B.1. PCIE-01 .................................................................................................................. 97
B.2. EXT-PCI-01............................................................................................................ 97
Appendix C. Mating Connector Vendor Lists
Appendix C. Mating Connector Vendor Lists ................................
Appendix C. Mating Connector Vendor ListsAppendix C. Mating Connector Vendor Lists
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Lists of Figures
Figure 1: Layout diagram of the EPIA-M900 mainboard (top view) .................... 19
Figure 2: Layout diagram of the EPIA-M900 mainboard (bottom view)............. 20
Figure 3: Mounting holes and dimensions of the EPIA-M900 mainboard.......... 21
Figure 4: Height distribution of the EPIA-M900 mainboard .................................. 22
Figure 5: External I/O ports........................................................................................... 23
Figure 6: HDMI® port pinout diagram......................................................................... 24
Figure 7: VGA port pinout diagram............................................................................. 25
Figure 8: COM port pinout diagram............................................................................ 26
Figure 9: USB port pinout diagram .............................................................................. 27
Figure 10: Gigabit Ethernet port pinout diagram ..................................................... 27
Figure 11: Audio jack receptacle stack....................................................................... 28
Figure 12: ATX power connector ................................................................................ 29
Figure 13: CMOS battery slot/connector................................................................... 30
Figure 14: Front panel pin header block.................................................................... 31
Figure 15: SMBus pin header ........................................................................................ 32
Figure 16: MFX pin header ............................................................................................ 33
Figure 17: Fan connectors.............................................................................................. 34
Figure 18: SATA connectors ......................................................................................... 35
Figure 19: USB and USB Device pin headers ............................................................ 36
Figure 20: COM pin headers......................................................................................... 37
Figure 21: PS/2 keyboard and mouse pin header .................................................... 38
Figure 22: LVDS connector ...........................................................................................39
Figure 23: Inverter connector ....................................................................................... 40
Figure 24: Front audio pin header ...............................................................................41
Figure 25: SPDIF connector ........................................................................................... 42
Figure 26: Digital I/O pin header ................................................................................. 43
Figure 27: SPI pin header ............................................................................................... 44
Figure 28: LPC pin header.............................................................................................. 45
Figure 29: Backlight and LVDS power select jumper.............................................. 47
Figure 30: CLEAR CMOS jumper .................................................................................48
Figure 31: DDR3 memory slots ....................................................................................49
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Figure 32: Inserting the memory module................................................................... 50
Figure 33: Locking the memory module .................................................................... 50
Figure 34: Disengaging the SODIMM locking clips ................................................. 51
Figure 35: Removing the memory module ................................................................ 51
Figure 36: PCI Express slot ............................................................................................ 52
Figure 37: PCI slot ........................................................................................................... 53
Figure 38: Suggested minimum chassis dimensions ................................................ 55
Figure 39: Suggested minimum internal chassis ceiling height............................. 56
Figure 40: Suggested keepout areas ........................................................................... 57
Figure 41: Illustration of the Main menu screen....................................................... 61
Figure 42: Illustration of the Advanced Settings screen......................................... 63
Figure 43: Illustration of the CPU Configuration screen ......................................... 64
Figure 44: Illustration of SATA Configuration screen ............................................. 66
Figure 45: Illustration of SATA-1 Primary IDE screen .............................................66
Figure 46: Illustration of SuperIO Configuration screen......................................... 68
Figure 47. Illustration of Hardware Health Configuration screen ........................ 69
Figure 48: Illustration of ACPI Configuration screen ............................................... 70
Figure 49: Illustration of APM Configuration screen ...............................................72
Figure 50: Illustration of Event Logging Configuration screen.............................. 76
Figure 51: Illustration of Spread Spectrum Configuration screen ........................ 77
Figure 52: Illustration of USB Configuration screen ................................................ 78
Figure 53: Illustration of CRB Configuration screen................................................. 79
Figure 54: Illustration of Boot Settings screen.......................................................... 83
Figure 55: Illustration of Boot Settings Configuration screen................................ 83
Figure 56: Illustration of the Boot Device Priority screen ...................................... 85
Figure 57: Illustration of Security Settings screen.................................................... 86
Figure 58: Illustration of Exit Options screen ........................................................... 89
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Lists of Tables
Table 1: HDMI® port pinout ......................................................................................... 24
Table 2: VGA port pinout ............................................................................................. 25
Table 3: COM port pinout ............................................................................................ 26
Table 4: USB port pinout............................................................................................... 27
Table 5: Gigabit Ethernet port pinout ........................................................................ 27
Table 6: Audio jack receptacle pinout....................................................................... 28
Table 7: ATX power connector pinout...................................................................... 29
Table 8: CMOS battery slot/connector pinout ........................................................30
Table 9: Front panel pin header pinout ..................................................................... 31
Table 10: SMBus pin header pinout............................................................................ 32
Table 11: MFX pin header pinout................................................................................ 33
Table 12: Fan connector pinouts ................................................................................. 34
Table 13: SATA connector pinouts............................................................................. 35
Table 14: USB pin header pinouts............................................................................... 36
Table 15: USB Device pin header pinout .................................................................. 36
Table 16: COM pin header pinout .............................................................................. 37
Table 17: PS/2 keyboard and mouse pin header pinout ........................................ 38
Table 18: LVDS connector pinout ............................................................................... 39
Table 19: Inverter connector pinout........................................................................... 40
Table 20: Front audio pin header pinout................................................................... 41
Table 21: SPDIF connector pinout ..............................................................................42
Table 22: Digital I/O pin header pinout ....................................................................43
Table 23: SPI pin header pinout ..................................................................................44
Table 24: LPC pin header pinout ................................................................................. 45
Table 25: Backlight and LVDS power select jumper settings............................... 47
Table 26: CLEAR CMOS jumper settings ................................................................... 48
Table 27: Serial port addresses and IRQs ................................................................. 68
Table 28: EPIA-M900 mating connector vendor lists ............................................. 99
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1.
1. Product Overview
Product Overview
1.1.
Product OverviewProduct Overview
The VIA EPIA-M900 Mini-ITX mainboard is an entry-level native x86 mainboard
designed mainly for embedded and thin client applications. It can also be
used for various domain applications such as desktop PC, industrial PC, etc.
The mainboard is based on the VIA VX900 Unified Digital Media IGP chipset
that features the VIA Chrome9™ HC with 2D/3D graphics and video
accelerators for rich digital media performance.
The VIA EPIA-M900 includes a powerful, secure, and efficient VIA Nano
™
VIA QuadCore processor. The Nano
the VIA Padlock Security Engine, VIA CoolStream
™
StepAhead
The VIA EPIA-M900 includes two 1066 MHz DDR3 SODIMM slots that support
up to 8 GB. The VIA EPIA-M900 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.
Technology Suite, and VIA TwinTurbo™ technology.
X2 / VIA QuadCore processor includes
™
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Architecture, VIA
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X2 /
The VIA EPIA-M900 is compatible with a full range of Mini-ITX chassis as well
as FlexATX and MicroATX enclosures and power supplies. The VIA EPIA-
®
M900 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 Nano
™
X2 / VIA QuadCore Processor
The VIA Nano X2 processor 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. The VIA Nano X2 is
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..
The VIA QuadCore processor is a combine four 64-bit 'Isaiah' cores on two
dies, offering enhanced multi-tasking and superb multimedia performance on a
low power budget. Featuring high-performance superscalar processing, out-
of-order x86 architecture and advanced multi-core processing. The distributed
performance of the VIA QuadCore provides a highly compatible and low-
power consumption solution for any computing market. The VIA QuadCore
processor is manufactured using a 40 nanometer process technology.
Note:
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
1.1.2. VIA VX900 Chipset
The VIA VX900 Unified Digital Media Chipset is designed to enable high
quality digital video streaming and DVD playback in a new generation of
fanless, small form factor PCs and IA devices. The VIA VX900 features VIA
™
Chrome9
14
HC3 with 2D/3D graphics and video acceleration, DDR3 1066/800
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MHz support, motion compensation and dual display support to ensure a rich
overall entertainment experience.
1.1.3. Modular Expansion Options
The VIA EPIA-M900 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-M900 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-M900 obtain the maximum benefits
from its past investments in PCI expansion cards.
The VIA EPIA-M900 also includes a 16-Lane PCI Express 2.0 expansion slot
that provides protection against obsolescence.
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1.2. Product Specifications
Processor
Processor
ProcessorProcessor
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Chipset
Chipset
ChipsetChipset
VIA VX900 advanced all-in-one system processor
System Memory
System Memory
System MemorySystem Memory
2 DDR3 1066 SO-DIMM sockets
Supports up to 8 GB
VGA
VGA
VGAVGA
Chrome9 HC3 Integrated Graphics Processor with 3D/2D/Video Controllers
Unified Video Decoding Accelerator for MPEG-2, WMV9/VC1, H.264 Full HD
Onboard
Onboard Peripherals
Onboard Onboard
Serial ATA
Serial ATA
Serial ATASerial ATA
Onboard LAN
Onboard LAN
Onboard LANOnboard LAN
Onboard Audio
Onboard Audio
Onboard AudioOnboard Audio
Onboard Super IO
Onboard Super IO
Onboard Super IOOnboard Super IO
Onboard I/O Connectors
Onboard I/O Connectors
Onboard I/O ConnectorsOnboard I/O Connectors
4 x USB connectors
1 x USB client connector
1 x Front audio pin header for Line-out and MIC-in
2 x Digital I/O (GPI x 8 + GPO x 8)
1 x PS/2 Keyboard/Mouse pin header
1 x Front panel pin header
2 x Smart Fan connectors (for CPU and system)
3 x RS232 connectors
1 x LPC pin header (for programming)
1 x S/PDIF-out pin header
1 x SMBUS pin header
16L
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16L16L
VIA Nano X2 1.6GHz NanoBGA2 processor (with Fan)
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12LQ
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VIA QuadCore 1.2GHz NanoBGA2 processor (with Fan)
Peripherals
PeripheralsPeripherals
2 SATA connectors
1 VIA VT6130 Gigabit LAN Controller
VIA VT2021 High Definition Audio Codec
Fintek F81865-I Super I/O controller
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1 x MFX pin header
1 x PCI slot
1 x PCIe x16 slot
1 x 24-bit 2-channel LVDS connector
1 x backlight control connector for inverter power and brightness control
1 x ATX power connector
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Back Panel I/O
Back Panel I/O
Back Panel I/OBack Panel I/O
1 x HDMI® port
1 x VGA port
1 x COM port
1 x RJ45 port
4 x USB 2.0 ports
3 x Audio port stack with Line-in, Line-out, MIC-in
BIOS
BIOS
BIOSBIOS
AMI BIOS
8Mbit SPI Flash ROM
Supported
Supported Operating System
Supported Supported
Operating System
Operating SystemOperating System
Windows 7
Windows Embedded Standard 7
Windows XP
Windows Embedded Standard/Compact
Linux
System Moni
System Monitoring & Management
System MoniSystem Moni
toring & Management
toring & Managementtoring & Management
Wake-on-LAN
Keyboard Power-on
Timer Power-on
System power management
AC power failure recovery
WatchDog Timer
Operating Conditions
Operating Conditions
Operating ConditionsOperating Conditions
Operating Temperature
Operating Temperature
Operating TemperatureOperating Temperature
0°C up to 60°C
Operating Humidity
Operating Humidity
Operating HumidityOperating Humidity
0% ~ 95% (relative humidity; non-condensing)
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FFFForm Factor
orm Factor
orm Factororm Factor
Mini-ITX (8-layer)
17 cm x 17 cm
Compliance
Compliance
ComplianceCompliance
CE
FCC
RoHS
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Note:
Note:
Note:Note:
1. Some system resources require physical memory addresses and may reduce total available memory.
2. PCI Express slot has an effective bandwidth of 8x.
3. This specification is subject to change without prior notice.
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1.3. Layout Diagram
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Figure
Figure 1111: Layout diagram of the EPIA
: Layout diagram of the EPIA----MMMM90
Figure Figure
: Layout diagram of the EPIA: Layout diagram of the EPIA
900 mainboard
0 mainboard (top view)
9090
0 mainboard0 mainboard
(top view)
(top view) (top view)
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Figure
Figure 2222:::: Layout diagram of the EPIA
Figure Figure
Layout diagram of the EPIA----M900 mainboard (bottom view)
Layout diagram of the EPIALayout diagram of the EPIA
M900 mainboard (bottom view)
M900 mainboard (bottom view)M900 mainboard (bottom view)
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1.4. Product Dimensions
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Figure
Figure 3333: Mounting holes and dimensions of the EPIA
: Mounting holes and dimensions of the EPIA----MMMM90
Figure Figure
: Mounting holes and dimensions of the EPIA: Mounting holes and dimensions of the EPIA
900 mainboard
0 mainboard
9090
0 mainboard0 mainboard
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1.5. Height Distribution
Figure
Figure 4444: Height distribution of the EPIA
: Height distribution of the EPIA----MMMM90
Figure Figure
: Height distribution of the EPIA: Height distribution of the EPIA
900 mainboard
0 mainboard
9090
0 mainboard0 mainboard
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EPIA
2.
2. I/O Interface
I/O Interface
2.2.
I/O InterfaceI/O Interface
The VIA EPIA-M900 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 5555: External I/O ports
: External I/O ports
Figure Figure
: External I/O ports: External I/O ports
23
EPIA
2.1.1. HDMI
®
Port
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The integrated 19-pin HDMI® port uses an HDMI® Type A receptacle
®
connector. The pinout of the HDMI
port is as shown below.
Figure
Figure 6666: HDMI
Figure Figure
®®®®
: HDMI
port pinout diagram
port pinout diagram
: HDMI: HDMI
port pinout diagram port pinout diagram
Pin
Pin
Signal
Table
Table 1111: HDMI
: HDMI
Table Table
: HDMI: HDMI
Signal Pin
PinPin
SignalSignal
1 TMDS Data0+ 2 Ground
3 TMDS Data0– 4 TMDS Data1+
5 Ground 6 TMDS Data1–
7 TMDS Data2+ 8 Ground
9 TMDS Data2– 10 TMDS Data3+
11 Ground 12 TMDS Data3–
13 CEC 14 NC
15 HDMI Clock 16 HDMI Data
17 Ground 18 HDMI Power
19 Hot Plug Detect
®®®®
port pinout
port pinout
port pinout port pinout
Pin
PinPin
Signal
Signal
SignalSignal
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2.1.2. VGA Port
The integrated 15-pin VGA port uses a female DE-15 connector. The pinout of
the VGA port is as shown below.
Figure
Figure 7777: VGA port pinout diagram
: VGA port pinout diagram
Figure Figure
: VGA port pinout diagram: VGA port pinout diagram
Pin
Pin
Signal
Signal Pin
PinPin
SignalSignal
1 RED 6 Ground 11 VGP_20
2 GREEN 7 Ground 12 SDA
3 BLUE 8 Ground 13 HSync
4 NC 9 +5V 14 VSync
5 Ground 10 NC 15 SCL
Table
Table 2222: VGA port pinout
: VGA port pinout
Table Table
: VGA port pinout: VGA port pinout
Pin
Signal
Signal Pin
PinPin
SignalSignal
Pin
PinPin
Signal
Signal
SignalSignal
25
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2.1.3. COM Port
The integrated 9-pin COM port uses a male DE-9 connector. The pinout of the
COM port is as shown below.
1111
2222
3333
4444
○○○○
8888
Pin
PinPin
○○○○
○○○○
9999
Signal
Signal
SignalSignal
5555
Figure
Figure 8888: COM p
: COM port pinout diagram
: COM p: COM p
ort pinout diagram
ort pinout diagramort pinout diagram
Figure Figure
Pin
Pin
PinPin
1 DCD_1 6 DSR_1
2 RXD_1 7 RTS_1
3 TXD_1 8 CTS_1
4 DTR_1 9 RI_1
5 GND
Table
Table 3333: COM port pinout
: COM port pinout
Table Table
: COM port pinout: COM port pinout
○○○○
○○○○
○○○○
6666
7777
○○○○
○○○○
○○○○
Signal
Signal Pin
SignalSignal
26
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2.1.4. USB Ports
There are four integrated USB 2.0 ports separated into two USB port stacks.
Each USB port is using the USB Type A receptacle connector. The pinout of
the typical USB port is as shown below.
Pin
Pin
Signal
Signal
PinPin
SignalSignal
1 +5VSUS
2 Data-
3 Data+
4 Ground
Table
Table 4444: USB port pinout
: USB port pinout Figure
Table Table
: USB port pinout: USB port pinout
Figure 9999: USB
: USB port pinout diagram
Figure Figure
port pinout diagram
: USB : USB
port pinout diagramport pinout diagram
2.1.5. Gigabit Ethernet Port
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 as shown below.
Pin
Pin
Signal
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 5555: Gigabit Ethernet port pinout
: Gigabit Ethernet port pinout Figure
Table Table
: Gigabit Ethernet port pinout: Gigabit Ethernet port pinout
Figure 10
10: Gigabit Ethernet p
: Gigabit Ethernet port pinout diagram
Figure Figure
1010
: Gigabit Ethernet p: Gigabit Ethernet p
ort pinout diagram
ort pinout diagramort pinout diagram
27
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2.1.6. 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
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
in
inin
Figure
Figure 11
11: Audio jack receptacle stack
Figure Figure
: Audio jack receptacle stack
1111
: Audio jack receptacle stack: Audio jack receptacle stack
28
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2.2. Onboard Connectors
2.2.1. ATX Power Connector
The mainboard has a 20-pin ATX power connector onboard. The ATX power
connector is labeled as “CN6”. The pinout of the ATX power connector is
shown below.
Figure
Figure 12
12: ATX power connector
Figure Figure
: ATX power connector
1212
: ATX power connector: ATX power connector
Pin
Pin
Signal
Signal Pin
PinPin
SignalSignal
1 +3.3V 11 +3.3V
2 +3.3V 12 -12V
3 Ground 13 Ground
4 +5V 14 Power Supply On
5 Ground 15 Ground
6 +5V 16 Ground
7 Ground 17 Ground
8 Power OK 18 -5V
9 +5VSB 19 +5V
10 +12V 20 +5V
Table
Table 7777: ATX power connector pinout
: ATX power connector pinout
Table Table
: ATX power connector pinout: ATX power connector pinout
29
Pin
PinPin
Signal
Signal
SignalSignal
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