VIA Technologies EPIA-TC User Manual
User’s Manual
EPIA-TC
Mini-ITX Mainboard
P/N: 99-51-012821-12
Version 1.20
December 11, 2004
Copyright
Copyright by VIA Technologies Inc. (“VIA”). No part of this manual may be
reproduced or transmitted in any form without express written authorization
from VIA.
Trademarks
All trademarks are the property of their respective holders.
PS/2 is a registered trademark of IBM Corporation.
Windows 95/98/98SE/ME/2000/NT and Windows XP are registered
trademarks of Microsoft.
Award is a registered trademark of Award Software Inc.
Data protection
All data should be backed-up prior to the installation of any drive unit or
storage peripheral. VIA will not be responsible for any loss of data resulting
from the use, disuse or misuse of this or any other VIA product.
No Warranty
VIA has made every effort to ensure the accuracy of the content of this
manual. However, it is possible that it may contain technical inaccuracies or
typographical or other errors. Our products are under continual improvement
and we reserve the right to make changes without notice. VIA will assume
no liability for any inaccuracy found in this publication, nor for damages,
direct, indirect, incidental, consequential or otherwise, that may result from
such an inaccuracy, including without limitation loss of data or profits.
VIA provides this manual “as is”, and does not issue a warranty of any kind,
express or implied, including without limitation implied warranties of
merchantability or fitness for a particular purpose.
The information provided in this manual is subject to change without notice.
VIA reserves the right to alter product designs, layouts or drivers without
notification.
ii
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 own 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.
iii
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 can not 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
0
(140
F), IT MAY DAMAGE THE EQUIPMENT.
CAUTION: Explosion or serious damage may occur if the battery is
incorrectly replaced. Replace only with the same or equivalent type
recommended by the manufacturer.
0
C
iv
Box Contents
• 1 x VIA Mainboard
• 1 x User’s Manual
• 1 x ATA-66/100/133 IDE Ribbon Cable
• 1 x IDE Power Cable
• 1 x Driver Utilities CD
v
Table of Contents
Chapter 1: Specifications ........................................1-1
Mainboard Specifications.......................................................... 1-2
Mainboard Layout .....................................................................1-4
Back Panel Ports ...................................................................... 1-5
Slots ..........................................................................................1-5
Onboard Connectors and Jumpers........................................... 1-6
Chapter 2: Installation..............................................2-1
CPU Installation ........................................................................ 2-2
Memory Module Installation ...................................................... 2-4
Connecting the Power Supply................................................... 2-6
Back Panel Ports ...................................................................... 2-7
Connectors.............................................................................. 2-10
Jumpers .................................................................................. 2-17
Slots ........................................................................................2-18
Chapter 3: BIOS Setup .............................................3-1
Entering Setup ..........................................................................3-2
Control Keys ............................................................................. 3-2
Gettings Help ............................................................................ 3-3
The Main Menu .........................................................................3-4
Standard CMOS Features ........................................................ 3-6
Advanced BIOS Features ......................................................... 3-8
Advanced Chipset Features.................................................... 3-11
Integrated Peripherals.............................................................3-13
Power Management Setup .....................................................3-17
PNP / PCI Configurations .......................................................3-22
PC Health Status ....................................................................3-25
Frequency / Voltage Control ................................................... 3-26
Load Fail-Safe Defaults .......................................................... 3-29
Load Optimized Defaults.........................................................3-30
Set Supervisor / User Password ............................................. 3-31
Save & Exit Setup ...................................................................3-33
Exit Without Saving .................................................................3-34
Chapter 4: Driver Installation ..................................4-1
Driver Utilities............................................................................ 4-2
CD Content ............................................................................... 4-3
vi
Appendix A: Smart 5.1 ............................................ A-1
Intelligent 6-Channel Audio...................................................... A-2
Appendix B: Add-on Modules ................................ B-1
CCM-01.................................................................................... B-2
LVDS-04 .................................................................................. B-4
RGB-01 .................................................................................... B-5
DVI-01...................................................................................... B-6
Appendix C: Onboard Power Specifications ........ C-1
DC-to-DC Specification ............................................................ C-2
Power Consumption (Board Only) ........................................... C-3
Power Consumption (With IDE) ............................................... C-4
vii
Chapter
1
Specifications
The ultra-compact and highly intergrated VIA
EPIA-TC 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.
This chapter includes the following sections:
Mainboard Specifications 1-2
Mainboard Layout 1-4
Back Panel Ports 1-5
Slots 1-5
Connectors / Jumpers 1-6
1-1
Chapter 1
Mainboard Specifications
CPU
• VIA C3 / EDEN EBGA Processor (onboard)
• Enhanced Ball Grid Array Package (EBGA)
• Internal L1 128KB and L2 64KB cache memory
Chipset
• VIA CLE266 North Bridge
• VT8235 South Bridge
Memory
• 1 x 200-pin DDR266 SODIMM socket (up to 1 GB)
Expansion Slots
• 1 x PCI
Graphics
• Integrated VIA UniChrome AGP graphics
Audio
• VT1612A, two-channel or
• VT1616, six-channel AC’97 Codec
LAN
• VIA VT6103 10/100 Base-T Ethernet PHY
IDE
• 2 X UltraDMA 66/100/133 Connector
OnModule CardBus/CF (optional)
• RICOH 476II
1-2
Specifications
Back Panel I/O Ports
• DC-in power jack
• 1 x PS2 mouse port
• 1 x PS2 keyboard port
• 1 x VGA port
• 1 x RJ-45 LAN port
• 2 x USB 2.0/1.1 ports
• 1 x Serial port
• 3 x Audio jacks: line-out, line-in and mic-in
• 1 x Cardbus slot & CF slot (optional)
Onboard I/O Connectors
• 2 x USB 2.0/1.1 connector (USB 2.0 support included in South Bridge)
• 1 x Front audio connector
• 1 x KBMS connector
• 1 x Wake-on-LAN connector
• 2 x Fan connectors (CPU Fan, System Fan)
• 1 x LVDS connector (optional)
• 1 x Serial port connector for second COM port
• 1 x LPT port connector
• 1 x 12V connector
• 1 x SPDIF connector
• 1 x I
2
C Pin-header
BIOS
• Award BIOS on 2/4Mbit flash memory
Form Factor
• 17 cm X 17 cm Mini-ITX (4 layers)
1-3
Chapter 1
Mainboard Layout
Back Panel
PS2_MS
DC-in
PS2_KB VGA Out
COM1
RJ45
USB
Line-InLine-Out Microphone
1-4
Specifications
Back Panel Ports
Port Description Page
Audio Jacks Line-Out, Line-In, Microphone 2-9
COM 1 Serial port 2-8
DC-in Power Jack DC Power input 2-6
PS2-KB PS2 keyboard port 2-7
PS2-MS PS2 mouse port 2-7
RJ45 10/100 NIC port 2-8
USB 1-2 Universal Serial Bus ports 1 - 2 2-8
VGA Out VGA out port 2-8
Slots
Slot Description Page
PCI Expansion card slot 2-18
DDR_SODIMM 1 Memory module slot 2-4
1-5
Chapter 1
Onboard Connectors and Jumpers
Connecter/Jumper Description Page
+12V_CONN +12V power connector 2-15
CLEAR_CMOS Jumper to reset CMOS settings to default 2-17
COM2 Second serial port connector 2-13
F_AUDIO Front audio connector 2-14
F_PANEL Case connectors 2-11
Fans CPU Fan, System Fan 2-2
2
C Header I2C header
I
IDE_POWER IDE power connector 2-6
IDE 1 & 2 IDE hard disk drive connectors 2-10
J1 IDE 20th pin voltage selector 2-17
KBMS CIR/PS2(EXT_KBMS) connector 2-12
LPT LPT port connector 2-16
LVDS (optional) LVDS connector 2-15
2-14
SPDIF Sony Philips Digital Interface 2-16
USB 3/4 & USB 5/6 Universal Serial Bus connector 2-12
WOL Wake On LAN connector 2-13
1-6
Chapter
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.
This chapter includes the following sections:
CPU 2-2
Memory Module Installation 2-4
Connecting the Power Supply 2-6
Back Panel Ports 2-7
Connectors 2-10
Jumpers 2-17
Slots 2-18
2-1
Chapter 2
CPU
The VIA EPIA-TC Mini-ITX Mainboard includes an embedded VIA Eden
Processor or VIA C3
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 Ground
and should be connected to GND. Both CPU and System fan connectors
have sensors to detect fan speed.
CPUFAN
TM
E-Series Processor. The CPUFAN (CPU fan) and
GND
+12V
Sensor
SYSFAN
The VIA C3TM E-Series Processor
With low power consumption and
advanced thermal dissipation properties,
the embedded VIA C3
only a small fan to guarantee performance
and reliability. Ensure that the CPU Fan
Connector is correctly installed as shown.
TM
E-Series requires
2-2
Installation
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.
Warning: 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.
2-3
Chapter 2
Memory Module Installation
The VIA EPIA-TC Mini-ITX Mainboard provides one SODIMM slot on the
bottom-side of the board. It uses 200-pin DDR266 memory modules.
Memory slot located on the
bottom-side of the board.
DDR SDRAM Module Installation Procedures
1. Make sure the notch is on the proper side.
2. Insert the memory module into the slot at a 30 degree angle (30 degrees
from the board). You should feel it lightly snap into place.
3. Push the module up against the board and release your finger when the
clips lock the module.
2-4
Installation
Available DDR SDRAM Configurations
Refer to the table below for available configurations on the mainboard.
Slot Memory Module Total Memory
SODIMM
(Bank 0 & 1)
Maximum System Memory Supported 64 MB - 1 GB
64MB, 128MB, 256MB, 512MB,
1GB
64 MB - 1 GB
2-5
Chapter 2
Connecting the Power Supply
The VIA EPIA-TC Mini-ITX Mainboard has an onboard DC-to-DC
converter. It requires an AC adapter that has a 12V DC output. Always make
sure that all components are installed correctly to ensure that no damage will
be caused.
Insert AC adapter
Disk Drive Power: IDE_POWER
The mainboard provides a special power connector for the IDE devices
connected to the IDE slots. There is a maximum of 60 watts available.
IMPORTANT: Please refer to Appendix C for the onboard power specifications.
IDE_POWER
2-6
Back Panel Ports
The back panel has the following ports:
PS2_MS
COM1
RJ45
Installation
DC-in
PS2_KB VGA Out
USB
Line-InLine-Out Microphone
Mouse Port: PS2_MS
The mainboard provides a standard PS/2 mouse connector for attaching a
PS/2 mouse. You can plug a PS/2 mouse directly into this connector. The
connector location and pin assignments are as follows.
Pin Signal Description
6
4
2
PS2 Mouse (6-pin female)
5
3
1
1 Mouse DATA Mouse data
2 NC No connection
3 GND Ground
4VCC +5V
5 Mouse Clock Mouse clock
6 NC No connection
Keyboard Port: PS2_KB
The mainboard provides a standard PS/2 keyboard connector for attaching a
PS/2 keyboard. You can plug a PS/2 keyboard directly into this connector.
6
4
2
PS2 Keyboard (6-pin female)
Pin Signal Description
5
3
1
1 Keyboard DATA Keyboard data
2 NC No connection
3 GND Ground
4VCC +5V
5 Keyboard Clock Keyboard clock
6 NC No connection
2-7
Chapter 2
VGA Out
A DB-15 pin female connector that connects to a
VGA monitor.
USB Ports
The mainboard provides 2 USB 2.0/1.1 ports (plus 2 pin-headers for up to 4
additional USB 2.0/1.1 ports, see page 2-12). USB-compatible devices can
be plugged directly into these ports.
Pin Signal Description
1VCC+5V
2 -DATA Negative Data Channel
3 +DATA Positive Data Channel
4 GND Ground
1234
RJ45 10/100 NIC Port
The mainboard provides one standard RJ45 port for connection to the Local Area
Network (LAN). You can connect a
network cable to the LAN port.
Serial Ports: COM1
The mainboard offers one 9-pin male Serial Port connectors COM1. You can
attach a serial mouse or other serial devices directly to these ports.
Pin Signal Description
1 DCD Data Carry Detect
2 SIN Serial In or Receive Data
3 SOUT Serial Out or Transmit Data
4 DTR Data Terminal Ready
5 GND Ground
6 DSR Data Set Ready
7 RTS Request To Send
8 CTS Clear To Send
9 RI Ring Indicate
2-8
15
6
9-Pin Serial Port
9
Audio Jacks: Line-In, Line-Out, Microphone
The Line-Out jack is for connecting to external
speakers or headphones.
Installation
The Line-In jack is for connecting to an
external audio device such as a CD player, tape
Line-InLine-Out Microphone
player, etc...
The Mic jack is for connecting to a microphone.
If the mainboard is equipped with the VT1616 audio chip, then the board
also capable of six-channel audio. See Appendix A: Smart 5.1.
2-9
Chapter 2
Connectors
Hard Disk Connectors: IDE1 & IDE2
The mainboard has a 32-bit Enhanced PCI IDE and Ultra DMA 66/100/133
controller that provides PIO mode 0~4, Bus Master, and Ultra DMA 66/100/
133 functions. You can connect up to four hard disk drives, CD-ROM, LS120 or other IDE devices. The included IDE power cable has two large
connectors and two small connectors. The large connectors can be used for
IDE devices such as hard disks and optical drives. One of the small
connectors can be used for IDE devices such as slim optical drives, but the
other must be connected to IDE_POWER (see page 2-6).
IDE1 IDE2
The first hard drive should always be connected to IDE1. Master and Slave
drives can be connected to both IDE connectors. You must configure the
drives to the desired mode by setting the jumper accordingly. If you install
two hard disks on a single cable, you must set the jumper on the second hard
disk drive to slave mode. Please refer to the hard disk documentation
supplied by hard disk vendor for the jumper settings.
Both IDE1 and IDE2 have a 20th pin included. The 20th pin was added to
provide extra voltage to power 40-pin Disk-on-Modules (DOM). See
Voltage Selector: J1 on page 2-17. You must use IDE cables that do not
block the 20th pin.
IMPORTANT: Before adding IDE devices, refer to Appendix C for the onboard
power specifications to figure out how many devices can be supported.
2-10
Installation
Case Connectors: F_PANEL
The F_PANEL connector block allows you to connect to the power switch,
reset switch, power LED, HDD LED, SLED and the Speaker on the case.
Pin Signal Pin Signal
1 PWR LED+ 2 HDD LED+
3 PWR LED+ 4 HDD LED5 PWR LED- 6 PW_BN+
7 SPEAKER+ 8 PW_BN9 NC 10 RESET+
11 NC 12 RESET13 SPEAKER- 14 SLP_LED+
15 NC 16 SLP_LED-
216
151
Power Switch (PW_BN)
Connect to a 2-pin push button switch. Pressing this button will turn the
system power on or off.
Reset Switch (RESET)
The Reset Switch is used to reboot the system rather than turning the power
ON/OFF. Avoid rebooting while the HDD is working. You can connect the
Reset Switch from the system case to this pin.
Power LED (PWR LED)
The LED is lit when the system is power on. If the system is in S1 (POS Power On Suspend) or S3 (STR - Suspend To RAM) state, the LED will
blink.
HDD LED
HDD LED shows the activity of a hard disk drive. Avoid turning the power
off while HDD LED is lit. Connect the HDD LED from the system case to
this pin.
SLP_LED
The SLP_LED is lit when the system is in the S1 (POS - Power On Suspend)
state.
Speaker
The speaker from the system case is connected to this pin
2-11
Chapter 2
Consumer Infrared Module / PS2 Header: KBMS
When the header is not in use, please short pin 3&5, pin 4&6, pin 7&9, and
pin 8&10.
Pin Signal Pin Signal
1+5V 2GND
3 KB_CLK 4 KB_DATA
5 EXT_KBCLK 6 EXT_KBDATA
7MS_CLK 8MS_DATA
9 EXT_MSCLK 10 EXT_MSDATA
USB 3/4 USB 5/6
210
1
210
91
9
CIR / EXT. KBMS
10 9
12
USB pin-header: USB 3/4, USB 5/6
The mainboard provides 2 USB pin-headers, allowing up to 4 additional
USB ports.
Pin Signal Pin Signal
1 VCC 2 VCC
3 USB 0 - 4 USB 1 5 USB 0 + 6 USB 1 +
7 GND 8 GND
9NC 10GND
2-12
Installation
2
Wake-on LAN: WOL
This connector allows you to connect a network card with the Wake-On
LAN function. The connector will power up the system when a signal is
received through the network card. Please note that the function of ACPI
WOL may be disabled when users unplug the power cord or turn off the
power button manually.
WOL
9
1
COM2
COM2: The Second Serial Port
COM2 is a pin header for second serial port.
Pin Signal Description
1 DCD Data Carry Detect
2 SIN Serial In or Receive Data
3 SOUT Serial Out or Transmit Data
4 DTR Data Terminal Ready
5 GND Ground
6 DSR Data Set Ready
7 RTS Request To Send
8 CTS Clear To Send
9 RI Ring Indicate
2-13
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