VIA Technologies EPIA-ML User manual

User’s Manual
EPIA-ML
Mini-ITX Mainboard
Version 1.11
September 25, 2008

Copyright
Copyright © 2004-2008 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
Windows CE™, Windows XP™, Windows 2000™, Windows ME™, Windows 98™ and plug
and play™ are registered trademarks of Microsoft Corporation.
PS/2 is a registered trademark of IBM Corporation.
AwardBIOS is a registered trademark of Phoenix Technologies Ltd.
All trademarks are the property of their respective holders.
Macrovision
Apparatus Claims of U.S. Patent Nos. 6,836,549; 6,381,747; 7,050,698; 6,516,132; 5,583,936
licensed for limited viewing uses only. This product incorporates copyright protection
technology that is protected by certain U.S. patents and other intellectual property rights owned
by Macrovision and other rights owners. Use of this copyright protection technology must be
authorized by Macrovision, and is intended for home and other limited viewing uses only
unless otherwise authorized by Macrovision. Reverse engineering or disassembly is
prohibited.
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.

FCC-B Radio Frequency Interference Statement
This equipment has been tested and found to comply with the limits for a class B 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
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
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

Safety Instructions
1. Always read the safety instructions carefully.
2. Keep this User's Manual for future reference.
3. Keep this equipment away from humidity.
4. Lay this equipment on a reliable flat surface before setting it up.
5. The openings on the enclosure are for air convection hence protects the equipment from
overheating. DO NOT COVER THE OPENINGS.
6. Make sure the voltage of the power source and adjust properly 110/220V before
connecting the equipment to the power inlet.
7. Place the power cord in such a way that people cannot step on it. Do not place anything
over the power cord.
8. Always unplug the power cord before inserting any add-on card or module.
9. All cautions and warnings on the equipment should be noted.
10. Never pour any liquid into the opening. Liquid can cause damage or electrical shock.
11. If any of the following situations arises, get the equipment checked by a 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 work well or you cannot get it work according to User's
Manual.
•The equipment has dropped and damaged
•If the equipment has obvious sign of breakage
12. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT UNCONDITIONED,
STORAGE TEMPERATURE ABOVE 60 C (140F), IT MAY DAMAGE THE
EQUIPMENT.
Caution:
Only use the appropriate battery specified for this product.
Do not reuse, 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.

i
B OX C ONTENTS
•1 x VIA Mainboard
•1 x Quick Installation uide
•1 x ATA-33/66/100 IDE Ribbon Cable
•1 x Driver Utilities CD

ii
T ABLE OF C ONTENTS
Box Contents............................................................................ i
Table of Contents .................................................................... ii
Chapter 1 ............................................................................... 1
Specifications ....................................................................... 1
Mainboard Specifications ....................................................... 2
Mainboard Layout ................................................................. 4
Back Panel Ports ................................................................... 5
Slots.................................................................................... 5
Onboard Connectors and Jumpers........................................... 6
Chapter 2 ............................................................................... 7
Installation........................................................................... 7
CPU ..................................................................................... 8
Memory Module Installation ................................................. 10
Connecting the Power Supply ............................................... 12
Back Panel Ports ................................................................. 13
Connectors ......................................................................... 18
Jumpers............................................................................. 25
Slots.................................................................................. 26
Chapter 3 ............................................................................. 27
BIOS Setup ........................................................................ 27
Entering Setup ................................................................... 28
Control Keys....................................................................... 28
etting Help ....................................................................... 29
Main Menu ......................................................................... 30
Standard CMOS Features ..................................................... 32
IDE Primary Master/Slave, Secondary Master/Slave ................ 33
Advanced BIOS Features...................................................... 34
Advanced Chipset Features .................................................. 37
Integrated Peripherals ......................................................... 39
Power Management Setup .................................................... 43
PNP/PCI Configurations ....................................................... 48
PC Health Status ................................................................. 51
Frequency / Voltage Control................................................. 52
Load Fail-Safe Defaults ........................................................ 54

iii
Load Optimized Defaults ...................................................... 55
Set Supervisor / User Password ............................................ 56
Save & Exit Setup ............................................................... 58
Exit Without Saving ............................................................. 59
Chapter 4 ............................................................................. 61
Driver Installation ............................................................... 61
Driver Utilities .................................................................... 62
CD Content ........................................................................ 63

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1
C
HAPTER
1
Specifications
The ultra-compact and highly integrated VIA EPIA-ML Mini-ITX
Mainboard is the smallest form factor mainboard specification
available today, developed by VIA Technologies, Inc. as part of
the company’s open industry-wide total connectivity initiative.
The mainboard enables the creation of an exciting new
generation of small, ergonomic, innovative and affordable
embedded systems. Through high level of integration, mini-ITX
only occupy 66% of the size of FlexATX mainboard form factor.
The mainboard comes with an embedded VIA Processor, boasting
ultra low power consumption and cool, quiet operation.

Chapter 1
2
M AINBOARD S PECIFICATIONS
CPU
•VIA C3 / EDEN EB A Processor (on board)
•Enhanced Ball rid Array Package (EB A)
•Internal L1 128KB and L2 64KB cache memory
Chipset
•VIA CLE266 North Bridge
•VT8235 South Bridge
Graphi s
•Integrated UniChrome graphics with MPE -2 accelerator
Audio
•VT1616 six channel AC’97 Codec
•3 Audio jacks: Line-in, Line-out and Mic-in; switched to 6-
channel output during 6-channel operations with Smart 5.1
Main Memory
•1 DDR266 DIMM socket
•Up to 1 B memory size
PCI Bus & IDE
•1 x PCI slot
•2 x UltraDMA 66/100/133 Connector
LAN
•VIA VT6103 10/100 Base-T Ethernet PHY
USB
•USB v2.0 / v1.1