Commell LV-668 User manual

LV-668
Mini-ITX Motherboard
User’s Manual
Edition 1.0
2005/09/30

LV-668 User’s Manual
2
Copyright
Copyright 2004 - 2005. All rights reserved. This document is copyrighted and all rights are
reserved. The information in this document is subject to change without prior notice to make
improvements to the products.
This document contains proprietary information and protected by copyright. No part of this
document may be reproduced, copied, or translated in any form or any means without prior
written permission of the manufacturer.
All trademarks and/or registered trademarks contains in this document are property of their
respective owners. Disclaimer
The company shall not be liable for any incidental or consequential damages resulting from
the performance or use of this product.
The company 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 company has the right to revise the manual or include changes in the specifications of
the product described within it at any time without notice and without obligation to notify any
person of such revision or changes.
Trademark
All trademarks are the property of their respective holders.
Any questions please visit our website at http://www.commell.com.tw

LV-668 User’s Manual
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Packing List
Please check the package before you starting setup the system
Hardware:
LV-668 series motherboard x 1
Cable Kit:
40-pin ATA100 IDE flat cable x 1
Serial ATA ribbon cable x 1
I/O Shield x 1

LV-668 User’s Manual
4
Index
Chapter 1 <Introduction>.....................................................................................7
1.1 <Product Overview>.................................................................................7
1.2 <Product Specification>...........................................................................8
1.3 <Mechanical Drawing>...........................................................................10
1.4 <Block Diagram>.................................................................................... 11
Chapter 2 <Hardware Setup>.............................................................................12
2.1 <Connector Location>............................................................................12
2.2 <Jumper Reference> .............................................................................13
2.3 <Connector Reference>.........................................................................14
2.3.1 <Internal Connector>..................................................................14
2.3.2 <External Connector>.................................................................14
2.4 <CPU and Memory Setup>....................................................................15
2.4.1< CPU>........................................................................................15
2.4.2 <Memory> ..................................................................................15
2.5 <CMOS Setup>......................................................................................16
2.6 <Enhanced IDE & CF Interface>............................................................17
2.7 <Serial ATA Interface>...........................................................................18
2.8 <LAN Interface>.....................................................................................19
2.9 <Onboard Display Interface>.................................................................20
2.9.1 <Analog VGA Interface> ............................................................20
2.10 <Onboard Audio Interface>..................................................................21
2.11 <Power and Fan Connector>...............................................................22
2.11.1 <Power Input>..........................................................................22
2.11.2 <Fan Connector>......................................................................22
2.12 <Indicator and Switch>.........................................................................23
Chapter 3 <System Configuration>...................................................................25
3.1 <SATA RAID Configuration>..................................................................25

LV-668 User’s Manual
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3.2 <Audio Configuration> ...........................................................................27
3.3 <Display Configuration>.........................................................................28
Chapter 4 <BIOS Setup> ....................................................................................30
Appendix A <I/O Port Pin Assignment> ...........................................................32
A.1 <IDE Port>.............................................................................................32
A.2 <IrDA Port>............................................................................................32
A.3 < VGA Port >..........................................................................................33
A.4 <Serial ATA Port>...................................................................................33
A.5 <Serial Port>..........................................................................................33
A.6 <LAN Port>............................................................................................34
A.7 <PS/2 Keyboard & Mouse Port>............................................................34
A.8 <CPU Voltage>…...................................................................................35
A.9<USB Interface>……………………………………………………………..35
Appendix B <Flash BIOS>..................................................................................37
B.1 BIOS Auto Flash Tool......................................................................37
B.2 Flash Method...................................................................................37
Appendix C <System Resources> ....................................................................39
C.1 <I/O Port Address Map>……………………………………………………39
C.2 <Memory Address Map>.......................................................................41
C.3 <System IRQ & DMA Resource>..........................................................42
C.3.1 <IRQ> ........................................................................................42
Contact Information............................................................................................44

LV-668 User’s Manual
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(The Page is Left For Blank)

LV-668 User’s Manual Introduction
Product Overview 7
Chapter 1 <Introduction>
1.1 <Product Overview>
LV-668 is the Mini-ITX motherboard based on VIA chipset. It integrates the last VIA
embedded chipset for KN400A with VT8237R, DDR266/333/400 SDRAM, and serial ATA
with RAID to provide the economical embedded platform.
VIA KN400A & VT8237R Chipset
The board comes with the VIA last embedded chipset of KN400A, supports
DDR266/333/400 SDRAM, integrated the S3 Graphics UniChrome Pro IGP graphics core,
hardware MPEG-2 and MPEG-4 acceleration.
The VT8237R provides the board to support Ultra V-Link (1GB/s) with KN400A, two serial
ATA ports with RAID array function, 4 x USB2.0 ports and 5.1 channel AC97 audio.
Multimedia solution
Based on VIA KN400A chipset, the board provides, which supports single independent
display with CRT.
LAN Interface
LV-668 also comes with one 10/100Mbps LAN interface, support boot-on-LAN and
wake-on-LAN function.
High Speed Hot-plug Interface
Based on VIA VT8237R, the board provides 4 USB2.0 interfaces with up to 480Mbps of
transferring rate.
Expanded UCR for remote Operating SETUP Bios Feature
Expanded Universal Console Redirection (UCR) is a feature for monitoring POST
messages and running Setup and an operation system from a remote serial terminal.

LV-668 User’s Manual Introduction
Product Specification
8
1.2 <Product Specification>
General Specification
Form Factor Mini-ITX motherboard
CPU AMD Geode NX Processors
NX 1250@6W/1500@6W Processors supported
Fanless with CPU heatsink
Memory 1 x 184-pin DDR 266/333/400 SDRAM up to 1GB
Unbufferred, none-ECC memory supported only
Chipset VIA KN400A and VT8237R
BIOS Phoenix-Award v6.00PG 4Mb PnP flash BIOS
Green Function Power saving mode includes doze, standby and suspend modes.
ACPI version 1.0 and APM version 1.2 compliant
Real Time Clock VIA VT8237R built-in RTC with lithium battery
Enhanced IDE Enhanced IDE interface supports dual channels and up to 2
ATAPI devices at Ultra DMA100
One 40-pin onboard
Serial ATA VIA VT8237R integrates 2 Serial ATA interface
RAID 0, 1 array Technology supported
Multi-I/O Port
Chipset VIA VT8237R with Winbond W83697HF controller
Serial Port one external RS-232 serial port on rear I/O panel.
USB Port Four Hi-Speed USB 2.0 ports with 480Mbps of transfer rate.
Parallel Port One external parallel port on rear I/O panel.
IrDA Port One IrDA compliant Infrared interface supports SIR.
K/B & Mouse External PS/2 keyboard and mouse ports on rear I/O panel
Hardware
Monitor Fan speed, CPU temperature and voltage monitoring
VGA Display Interface
Chipset VIA KN400A built-in S3 Graphics UniChrome Pro IGP graphics
core
Core Frequency 200MHz
Memory BIOS selectable 16/32/64MB shard with system memory
Display Type CRT, LCD monitor with analog display
Connector External DB15 female connector on rear I/O panel

LV-668 User’s Manual Introduction
Product Specification 9
Ethernet Interface
Chipset AMD AM79C874VI
Type 10Base-T / 100Base-TX
auto-switching Fast Ethernet
Full duplex, IEEE802.3U compliant
Connector One External RJ45 connectors with LED on rear I/O panel
Audio Interface
Chipset Realtek®ALC655 AC97 3D audio codec
Interface 5.1 channel 3D audio with Line-in, Line-out and MIC-in
Connector External Audio phone jack for Line-out/Front, Line-in/Rear and
MIC(stereo)-in/Center
Onboard audio connector with pin header
Onboard CD-IN connector
Expansive Interface
PCI 1 x PCI slot supports up to one PCI devices through riser card
Power and Environment
Power
Requirement Standard ATX 20-pin power supply
Dimension 170 (L) x 170 (H) mm
Temperature Operating within 0 ~ 60oC (32 ~ 140oF)
Storage within -20 ~ 85oC (-4 ~ 185oF)
Software support
Operation
System Windows 2000, Windows XP
Linux (Fedora Core 1, Mandrake 9.2 and Red Hat 9.0)
Ordering Code
LV-668 AMD Geode NX processors Mini-ITX motherboard with onboard
VGA, LAN, SATA, USB 2.0 Ports, Audio, 1 x RS232 serial port,
S/PDIF,Parallel port
LV-668-12 Same as LV-668 and with AMD Geode NX 1250 processor
Lv-668-15 Same as LV-668 and with AMD Geode NX 1500 processor
1. Please do not order other Mini-AGP modules excluded in the list for this board.
2. The specifications may be different as the actual production.
For further product information please visit the website at http://www.commell.com.tw

LV-668 User’s Manual Introduction
Product Specification
10
1.3 <Mechanical Drawing>

LV-668 User’s Manual Introduction
Product Specification 11
1.4 <Block Diagram>
A
MD Geode NX processo
r
1 x 184-pin
DDR266/333/400
U
p
to 1GB
CRT/LCD Monitor
KN400A
Ultra V-Link
1GB/s
VT8237R
4 x USB2.0 Ports
IDE
1 x Serial ports
1 x Parallel ports
IrDA
AC97 5.1CH Codec
PCI
2 x SATA
BIOS

LV-668 User’s Manual Hardware Setup
Jumper Reference
12
Chapter 2 <Hardware Setup>
2.1 <Connector Location>
J2
J6
J3
J7
J4/J5
DIMM
J11
J10
J19 J3&17
J21
J16

LV-668 User’s Manual Introduction
Product Specification 13
2.2 <Jumper Reference>
Jumper Function
J13 CMOS Operating/Clear Setting.
J14 Setting CPU voltage.
J12 J13J14

LV-668 User’s Manual Hardware Setup
Jumper Reference
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2.3 <Connector Reference>
2.3.1 <Internal Connector>
Connector Function Remark
DIMM 184-pin DDR SDRAM DIMM Standard
J2 40-pin primary IDE connector Standard
J4/J5 7-pin Serial ATA connector Standard
J15 20-pin power supply connector Standard
J3 5 x 2-pin USB connector Standard
J10 3-pin CPU cooler fan connector Standard
J7 14-pin switch/indicator connector Standard
2.3.2 <External Connector>
Connector Function Remark
J18 DB15 VGA connector Standard
J3/J17 Dual USB and RJ45 LAN connector Standard
J21 Serial port connector Standard
J19 PS/2 Keyboard/Mouse connector Standard
J20 S/PDIF Digital Audio out RCA
J21(Green) Audio Line-out port Standard
J21(Blue) Audio Line-in port Standard
J21(Pink) Audio Microphone input port Standard
J16 One parallel port Standard

LV-668 User’s Manual Introduction
Connector Reference 15
2.4 <CPU and Memory Setup>
2.4.1< CPU>
The board supports AMD Geode NX 1250/1500 processor, with CPU headsink only .
2.4.2 <Memory>
The board supports one 184-pin DDR266/333/400 SDRAM and up to 1GB of capacity, only
non-ECC, unbuffered memory is supported.
DIMM
104-pin 80-pin
Please check the pin number to match the socket side well
before installing memory module.

LV-668 User’s Manual Hardware Setup
CPU and Memory Setup
16
2.5 <CMOS Setup>
The board’s data of CMOS can be setting in BIOS. If the board refuses to boot due to
inappropriate CMOS settings, here is how to proceed to clear (reset) the CMOS to its
default values.
Jumper: J13
Type: Onboard 3-pin jumper
J13 Mode
1-2 Normal Operation
2-3 Clear CMOS
Default setting
1
3
J13

LV-668 User’s Manual Introduction
CMOS Setup 17
2.6 <Enhanced IDE & CF Interface>
The board supports one enhanced IDE interface, one channel for 2 ATAPI devices with
ATA100.
J2

LV-668 User’s Manual Hardware Setup
Enhanced IDE & CF Interface
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2.7 <Serial ATA Interface>
Based on VIA VT8237R Southbridge, the board supports two Serial ATA interfaces with
RAID 0 and 1 array function. The following is the list of the specification of the Serial ATA.
1. Complies with Serial ATA Specification Revision 1.0
2. Dual Channel master mode PCI
3. On-chip two-channel Serial ATA (S-ATA) for support of up to two S-ATA devices
directly.
4. S-ATA drive transfer rate is capable of up to 150 MB/s per channel (serial speed of 1.5
Gbit/s).
For more information please visit VIA website (www.via.com.tw)
J4/J5
VT8237R

LV-668 User’s Manual Introduction
Serial ATA Interface 19
2.9 <LAN Interface>
The board provides one 10/100Mbps LAN interfaces with AM79C874VI , and compliant with
standard IEEE 802.3 Ethernet interface for 100BASE-TX.
J17

LV-668 User’s Manual Hardware Setup
Onboard Audio Interface
20
2.10 <Onboard Display Interface>
Based on VIA KN400A, the board supports integrated S3 Graphics UniChrome Pro IGP
graphics, with BIOS selectable 16/32/64MB shared with system memory for frame buffer.
2.10.1 <Analog VGA Interface>
The board provides a DB15 VGA connector on the rear I/O panel .
J18