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

iv
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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

Specifications
3
Onboard I/O Conne tors
•Front-panel audio connectors (Mic and Line Out)
•CD Audio-in connector
•1 FIR connector; 1 PS2 connector
•Wake-on-LAN
•CPU / System Fan / FAN3
•1 SMBus connector
•Serial port connector for second COM port
Ba k Panel I/O Ports
•1 PS2 mouse port; 1 PS2 keyboard port
•1 Parallel port; 1 RJ-45 LAN port; 1 Serial port
•2 USB 2.0 ports; 1 V A port
•3 Audio jacks: line-out, line-in and mic-in; can be switched to 6
channel output with Smart 5.1
BIOS
•Award BIOS with 2/4Mbit flash memory
Form Fa tor
•17 cm X 17 cm Mini-ITX (4 layer)

Chapter 1
4
M AINBOARD L AYOUT
Back Panel

Specifications
5
B ACK P ANEL P ORTS
Port Des ription
Audio Jacks Line-Out, Line-In, Microphone
COM 1 Serial port
LPT1 Parallel port
PS2-MS PS2 mouse port
PS2-KB PS2 keyboard port
RJ45 10/100 NIC port
USB 1-2 Universal Serial Bus ports 1 - 2
V A Out V A out port
S LOTS
Slot Des ription
DIMM Memory module slot
PCI Expansion card slot

Chapter 1
6
O NBOARD C ONNECTORS AND J UMPERS
Conne tor/Jumper Des ription
ATXPWR ATX power cable connector
CD_IN Onboard CD audio cable connector
CIR Consumer IR connector
CLEAR_CMOS Jumper to reset CMOS settings to default
COM2 Second serial port connector
F_AUDIO Connectors for optional front audio panel
F_PANEL Case connectors
Fans CPU, System, Fan3
FIR Fast Infrared Radiation connector
SMBus SMBus connector
IDE 1-2 IDE hard disk drive connectors
USB 3/4 Universal Serial Bus connectors 3 - 4
WOL Wake On LAN connector

7
C
HAPTER
2
Installation
This chapter provides you with information about hardware setup
procedures. While installing the mainboard, carefully hold the
components and closely follow the installation procedures. Some
components may be damaged if they are installed incorrectly.
It is recommended to use a grounded wrist strap before handling
computer components. Static electricity can damage some
components.

Chapter 2
8
CPU
The VIA EPIA-ML Mini-ITX Mainboard includes an embedded VIA Eden
Processor or VIA C3 E-Series Processor. The CPUFAN (CPU fan) and SYSFAN
(system fan) run on +12V and maintain system cooling. When connecting the
wire to the connectors, always be aware that the red wire is the Positive and
should be connected to the +12V. The black wire is round and should be
connected to ND. Both CPU and System fan connectors have sensors to
detect fan speed, but the power fan does not have a sensor. FAN3 is an
additional FAN connector.
The VIA C3 E-Series Processor
With low power consumption and advanced
thermal dissipation properties, the embedded VIA
C3 E-Series requires only a small fan to guarantee
performance and reliability. Ensure that the CPU
Fan Connector is correctly installed as shown.

Installation
9
The VIA Eden Processor
Providing ultra-low power consumption and
advanced thermal dissipation properties, the VIA
Eden Processor features a fanless design. The VIA
Eden Processor requires only a heatsink as shown.
Caution:
This motherboard is not designed to support overclocking. Any attempt to
operate beyond product specifications is not recommended. We do not
guarantee the damages or risks caused by operation beyond product
specifications.

Chapter 2
10
M EMORY M ODULE I NSTALLATION
The VIA EPIA-ML Mini-ITX Mainboard provides one 184-pin DIMM slot for
DDR266 SDRAM memory modules.
DDR SDRAM Module Installation Procedures
1. Push the white retaining latches at either end of the DIMM slot outwards.
2. Align the DDR SDRAM module with the corresponding notches on the
DIMM slot. The modules will only fit if placed in the correct position.
3. With both hands, press the DDR SDRAM module down into the DIMM
slot so that the white retaining latches rotate up and secure the module
in place (see picture below).

Installation
11
Available DDR SDRAM Configurations
Refer to the table below for available DDR SDRAM configurations on the
mainboard.
Slot Module Size Total Memory
DIMM
(Bank 0 & 1)
64MB, 128MB, 256MB, 512MB, 1 B 64MB – 1 B
Maximum System Memory Supported 64MB – 1 B

Chapter 2
12
C ONNECTING THE P OWER S UPPLY
The VIA EPIA-ML Mini-ITX Mainboard requires an ATX power supply to be
connected. Before inserting the power supply connector, always make sure
that all components are installed correctly to ensure that no damage will be
caused.
ATX 20-Pin Power Connector
To connect the ATX power supply, make sure the power plug is inserted in
the proper orientation and the pins are aligned. Then push down the plug
firmly into the connector.
Pin Signal
1 3.3V
2 3.3V
3 ND
4 5V
5 ND
6 5V
7 ND
8 PW_OK
9 5V_SB
10 12V
11 3.3V
12 -12V
13 ND
14 PS_ON
15 ND
16 ND
17 ND
18 NC
19 5V
20 5V