VIA Technologies EPIA-NX15000G - VIA Motherboard - Nano ITX User manual

User’s Manual
EPIA-NX
Version 1.0
January 25, 2007

Copyright
Copyright © 2006-2007 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. Award BIOS is a registered trademark of Phoenix Technologies Ltd.
Macrovision
Apparatus Claims of U.S. Patent Nos. 4,631,603; 4,819,098; 4,907,093; 5,315,448; 6,516,132
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: Explosion or serious damage may occur if the battery is
incorrectly replaced. Replace only with the same or equivalent
battery type recommended by the manufacturer.

i
BOX CONTENTS
One VIA Nano-ITX mainboard
One Quick Installation Guide
One ATA-133/100 IDE ribbon cable
One PS2 KB/MS cable
One VGA cable
One USB cable
One power cable
One driver and utilities CD

ii
TABLE OF CONTENTS
SPECIFICATIONS ............................................................................1
MAINBOARD SPECIFICATIONS.............................................................2
MAINBOARD LAYOUT ........................................................................4
BACK PANEL LAYOUT .......................................................................4
INSTALLATION ...............................................................................5
CPU ................................................................................................6
CPU Fan and System Fan: CPU_FAN and SYS_FAN .....................6
MEMORY MODULE INSTALLATION ......................................................7
Memory Slot: DDR2_SODIMM ......................................................7
Available DDR2 SDRAM Configurations ........................................7
CONNECTING THE POWER SUPPLY ......................................................8
Nano-ITX 12-Pin Power Connector................................................8
BACK PANEL PORTS ..........................................................................9
RJ45 LAN Port..............................................................................9
CONNECTORS.................................................................................. 10
IDE Connector: IDE .................................................................. 10
Case Connector: FPNL .............................................................. 11
Power Switch (PW_BN) ............................................................... 11
Reset Switch (RST_SW) ............................................................... 11
Power LED (PWR_LED).............................................................. 11
HDD LED (HD_LED).................................................................. 11
Speaker (SPEAK) ........................................................................ 11
Audio Connector: AUDIO........................................................... 12
KBMS Connector: KB/MS ........................................................... 12
LPC Connector: LPC ................................................................. 12
LVDS Panel Connector: PANEL.................................................. 13
Inverter Connector...................................................................... 13
Secondary LVDS Connector: LVDS ............................................. 14
Serial ATA Connectors: SATA1 and SATA2 ................................. 15
USB Pin Connector: USB ........................................................... 15
CRT, Video Capture and SMBus Connector .................................. 16
TV-out Connector........................................................................ 16

iii
JUMPERS ........................................................................................ 17
Clear CMOS: CLEAR_CMOS...................................................... 17
Inverter Selector: IVDD_SEL ..................................................... 17
Panel Power Selector: PVDD_SEL.............................................. 18
SLOTS ............................................................................................ 19
Mini Peripheral Component Interconnect: MINIPCI .................... 19
PCI Interrupt Request Routing..................................................... 19
BIOS SETUP.................................................................................... 21
ENTERING SETUP ............................................................................ 22
CONTROL KEYS .............................................................................. 23
NAVIGATING THE BIOS MENUS ....................................................... 24
GETTING HELP................................................................................ 25
MAIN MENU ................................................................................... 26
Standard CMOS Features ............................................................ 26
Advanced BIOS Features ............................................................. 26
Advanced Chipset Features.......................................................... 26
Integrated Peripherals ................................................................ 26
Power Management Setup............................................................ 26
PnP/PCI Configurations.............................................................. 26
Frequency/Voltage Control.......................................................... 26
Load Fail-Safe Defaults .............................................................. 27
Load Optimized Defaults ............................................................. 27
Set Supervisor Password ............................................................. 27
Set User Password ...................................................................... 27
Save & Exit Setup ....................................................................... 27
Exit Without Saving..................................................................... 27
STANDARD CMOS FEATURES .......................................................... 28
Date ........................................................................................... 28
Time........................................................................................... 28
Halt On ...................................................................................... 28
Video.......................................................................................... 28
IDE DRIVES ................................................................................... 29
ADVANCED BIOS FEATURES ............................................................ 30
Virus Warning ............................................................................ 30
Quick Power On Self-Test............................................................ 30

iv
First/Second/Third Boot Device ................................................... 31
Boot Other Device....................................................................... 31
Boot Up NumLock Status ............................................................. 31
Typematic Rate Setting................................................................ 31
Typematic Rate (Chars/Sec)......................................................... 32
Typematic Delay (Msec) .............................................................. 32
Security Option........................................................................... 32
APIC Mode ................................................................................. 32
MPS Variation Control for OS..................................................... 32
OS Select For DRAM > 64MB...................................................... 32
Video BIOS Shadow .................................................................... 32
Full Screen Logo Show................................................................ 33
Summary Screen Show................................................................. 33
CPU FEATURE ................................................................................ 34
Deplay Prior to Thermal ............................................................. 34
Thermal Management .................................................................. 34
TM2 Bus Ratio ............................................................................ 34
TM2 Bus VID .............................................................................. 35
Execute Disable Bit..................................................................... 35
HARD DISK BOOT PRIORITY ............................................................. 36
ADVANCED CHIPSET FEATURES ........................................................ 37
Memory Hole .............................................................................. 37
System BIOS Cacheable............................................................... 37
Video RAM Cacheable................................................................. 37
Init Display First ........................................................................ 37
Select Display Device.................................................................. 38
Panel Type.................................................................................. 38
TV H/W Layout ........................................................................... 38
TV Type...................................................................................... 38
AGP & P2P BRIDGE CONTROL......................................................... 39
AGP Aperture Size ...................................................................... 39
AGP 2.0 Mode ............................................................................ 39
AGP Driving Control .................................................................. 40
AGP Fast Write........................................................................... 40
AGP Master 1 WS Write ..............................................................40

v
AGP Master 1 WS Read............................................................... 40
AGP 3.0 Calibration Cycle .......................................................... 40
VGA Share Memory Size.............................................................. 40
Direct Frame Buffer .................................................................... 40
CPU & PCI BUS CONTROL .............................................................. 41
PCI Master 0 WS Write ............................................................... 41
PCI Delay Transaction................................................................ 41
DRDY_Timing............................................................................. 41
TV OUTPUT CONNECTOR ................................................................. 42
CVBS (Composite) ...................................................................... 42
S-Video 0 (Y/C)........................................................................... 42
R/G/B ......................................................................................... 42
Cr/Y/Cb ...................................................................................... 42
SDTV-R/G/B ............................................................................... 42
SDTV-Pr/Y/Pb............................................................................. 42
INTEGRATED PERIPHERALS .............................................................. 43
VIA ONCHIP PCI DEVICE................................................................ 44
Azalia HAD Controller ................................................................ 44
OnBoard LAN Boot ROM............................................................. 44
USB DEVICE SETTING ..................................................................... 45
USB 1.0 Controller ..................................................................... 45
USB 2.0 Controller ..................................................................... 45
USB Operation Mode .................................................................. 45
USB Keyboard Function .............................................................. 46
USB Storage Function ................................................................. 46
No Device................................................................................... 46
POWER MANAGEMENT SETUP ........................................................... 47
ACPI Suspend Type..................................................................... 47
Power Management Option.......................................................... 47
HDD Power Down....................................................................... 47
Suspend Mode ............................................................................. 47
Video Off Option......................................................................... 48
Video Off Method ........................................................................ 48
MODEM Use IRQ .......................................................................48
Soft-Off by PWRBTN ................................................................... 48

vi
Run VGABIOS if S3 Resume......................................................... 48
AC Loss Auto restart ................................................................... 48
WAKEUP EVENT DETECT ................................................................. 49
PS2KB Wakeup Select ................................................................. 49
PS2KB Wakeup Key Select........................................................... 49
PS2MS Wakeup Key Select........................................................... 49
PS2 Keyboard Power On .............................................................50
PS2 Mouse Power On.................................................................. 50
PowerOn by PCI Card................................................................. 50
Wake Up On LAN/Ring ................................................................ 50
RTC Alarm Resume ..................................................................... 50
Date (of Month) .......................................................................... 50
Resume Time (hh:mm:ss)............................................................. 50
PNP/PCI CONFIGURATIONS ............................................................. 51
PNP OS Installed ........................................................................ 51
Reset Configuration Data ............................................................ 51
Resource Controlled By............................................................... 52
PCI/VGA Palette Snoop............................................................... 52
Assign IRQ For VGA/USB ........................................................... 52
Maximum ASPM supported .......................................................... 52
Maximum Payload Size................................................................ 52
FREQUENCY / VOLTAGE CONTROL .................................................... 53
DRAM Clock............................................................................... 53
Auto Detect PCI Clk.................................................................... 53
DRAM CLOCK/DRIVE CONTROL ...................................................... 54
DRAM Clock............................................................................... 54
DRAM Timing ............................................................................. 54
Read to Precharge (Trtp) ............................................................ 55
Write to Read CMD (Trtp) ........................................................... 55
Write Recovery Time (Twr).......................................................... 55
RDSAIT mode ............................................................................. 55
LOAD FAIL-SAFE DEFAULTS ............................................................ 56
LOAD OPTIMIZED DEFAULTS ............................................................ 57
SET SUPERVISOR / USER PASSWORD ................................................. 58
SAVE & EXIT SETUP........................................................................ 60

vii
EXIT WITHOUT SAVING ................................................................... 61
DRIVER INSTALLATION .............................................................. 63
DRIVER UTILITIES ........................................................................... 64
Getting Started ........................................................................... 64
Running the Driver Utilities CD .................................................. 65
CD CONTENT.................................................................................. 66

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1
CHAPTER 1
Specifications
The ultra-compact and highly integrated VIA EPIA-NX Nano-ITX
mainboard is the smallest form-factor available today. Through a
high level of integration, the Nano-ITX measures at only 50% of
the size of a Mini-ITX mainboard. The mainboard enables the
creation of an exciting new generation of small, ergonomic,
innovative and affordable embedded systems.

Chapter 1
2
MAINBOARD SPECIFICATIONS
CPU
• Supports VIA C7 1.5GHz NanoBGA2 Processor
• Supports VIA Eden 1.2GHz NanoBGA2 Processor
Chipset
• VIA CX700M2 Advanced All-in-one System Processor
Graphics
• Integrated UniChrome™ Pro II 3D/2D AGP with MPEG-2/4 and
WMV9 Video Decoding Acceleration
Audio
• VIA VT1708A High Definition Audio Codec
Memory
• 1 x DDR2 533 DIMM slot (up to 1 GB)
Expansion Slot
• 1 x miniPCI slot
IDE
• 1 x UltraDMA 133/100 connector (2.0mm 40-pin header)
LAN
• VIA VT6107 10/100 Mbps Fast Ethernet Controller or VT6122
Gigabit Ethernet Controller (Optional)
Back Panel I/O Port
• 1 x RJ-45

Specifications
3
Onboard I/O Connectors
• 1 x USB pin connector for 6 additional USB 2.0 ports
• 1 x LPC header
• 1 x PS2 mouse/keyboard header
• 2 x Fan pin connectors for CPU and System fans
• 1 x LVDS panel connector
• 1 x DVO connector to support 2nd LVDS panel
(VT1636 add-on card required)
• 1 x Audio connector: Line-out, Line-in, MIC-in, and S/PDIF out
• 1 x TV out connector for Composite, S-Video, or Component
(YPbPr)
• 1 x Video pin connector for VGA output, CCIR656/601 video
input and SMBUS
• 2 x SATA connectors
• 1 x Nano-ITX power connector
BIOS
• Award BIOS with LPC 4/8Mbit flash memory capacity
Form Factor
• Nano-ITX (8 layers)
• 12 cm X 12 cm

Chapter 1
4
MAINBOARD LAYOUT
BACK PANEL LAYOUT
LAN Port

5
CHAPTER 2
Installation
This chapter provides you with information about hardware
installation procedures. It is recommended to use a grounded wrist
strap before handling computer components. Electrostatic discharge
(ESD) can damage some components.

Chapter 2
6
CPU
The VIA EPIA-NX Nano-ITX mainboard can support VIA C7 NanoBGA2 and
VIA Eden NanoBGA2 processors. The processor requires a heatsink with fan
for 1.5GHz SKU and a fanless heatsink for 1.2GHz SKU.
CPU Fan and System Fan: CPU_FAN and SYS_FAN
The CPU_FAN (CPU fan) and SYS_FAN (system fan) run on +12V and
maintain system cooling. When connecting the wire to the connectors,
always be aware that the red wire (positive wire) should be connected to
+12V. The black wire is Ground and should always be connected to GND.
Pin Signal
1 NC
2 +12V
3 GND
1 3

Installation
7
MEMORY MODULE INSTALLATION
Memory Slot: DDR2_SODIMM
The VIA EPIA-NX Nano-ITX mainboard provides one SODIMM slot for DDR2
533 SDRAM memory modules and supports memory sizes up to 1GB.
Insert the SODIMM module at a 45 degree angle.
Push the SODIMM module back towards the board until the clips lock the
module in place.
Available DDR2 SDRAM Configurations
Refer to the table below for available DDR2 SDRAM configurations on the
mainboard.
Slot Module Size Total
SODIMM 64MB, 128MB, 256MB, 512MB, 1GB 64MB-1GB
Maximum supported system memory 64MB-1GB

Chapter 2
8
CONNECTING THE POWER SUPPLY
The VIA EPIA-NX Nano-ITX mainboard supports a Nano-ITX power supply for
the power system. Before inserting the power supply connector, always
make sure that all components are installed correctly to ensure that no
damage will be caused.
Nano-ITX 12-Pin Power Connector
To connect the 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 GND
4 +5VSUS
5 GND
6 +12V
7 -PSON
8 +5V
9 GND
10 +5V
11 GND
12 PWRGD
12
34
56
78
910
11 12