Copyright 2008. 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 protect ed 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 propert y of their
respective owners.
Disclaimer
The company shall not be liable for any incidental or consequenti al dam ages res ultin g from
the performance or use of this product.
The company does not issue a warranty of any kind, e xpress 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 th e 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 TUhttp://www.commell.com.twUT.
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LV-678 User’s Manual
Packing List
Please check package component before you use our products.
Hardware:
LV-678 Mini-ITX motherboard x 1
Cable Kit:
SATA Cable x 2
26-pin Slim Type Floppy Cable x 1
USB Cable x 1
RAID drivers Disc for Windows 2000,
Windows XP and Windows Server 2003
LV-678 is the motherboard with last Intel desktop technology with Mini-ITX form factor.
Based on Intel® Q35 and ICH9DO, the board integrates a new Core2 Quad / Core 2 Duo
processor 775-pin socket, DDR2 memory socket, Intel® Graphic Media Accelerator 3100
technology, Serial ATA II with RAID function for a powerful desktop system.
Intel
® LGA775 processor
The Intel® Core2 Quad / Core 2 Duo processor now comes with a new form factor with
775-pin PLGA package, for 800/1066/1333MHz front-side-bus, 8MB L2 cache, for 65nm
and 45nm manufacturing technology, the PLGA processor w ithout pin header on solder side
can make user installing the processor on the socket easier.
Intel
® Q35 and ICH9DO chipset
The Intel Q35 integrates DDR2 667/800MHz for memory, and Graphic Media Accelerator
(GMA) 3100 technology for new graphic engine. It can provide up to 384MB of frame buffer
when you install over 1GB of system memory. The ICH9DO integrates with up to 6 USB2.0
interfaces and serial ATA II interface with RAID function.
Flexible Extension Interface
LV-678 provides one PCIE slot for X16 graphics card, it also can support
PCI Express X1 device and one Mini-PCI socket.
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LV-678 User’s Manual
A
1.2 <Product Specification>
General Specification
Form Factor Mini-ITX motherboard
CPU Support Intel Core 2 Quad / Core 2 Duo / Celeron processor
Package type: LGA775
Front side bus: 800 / 1066 / 1333MHz
Memory Two DDRII 667 / 800 MHz DIMM up to 4GB
Chipset Intel Q35 & ICH9DO
Real Time Clock Chipset integrated RTC with onboard lithium battery
Watchdog Timer Generates a system reset with internal timer for 0 ~255min/s
Power Management ACPI 1.0 compliant, supports power saving mode
Serial ATA Interface Intel ICH9DO built-in 6 x Serial ATAII interface up to 300MB/s
Support RAID 0,1,5,10 and Intel Matrix Storage Technology
VGA Interface Intel integrated extreme GMA 3100 (Graphic Media Accelerator)
Technology
Video Memory Up to 384MB shared with system memory
udio Interface Intel integrated ICH9DO with Realtek ALC888 HD Audio
LAN Interface 2 x Intel 82573L Gigabit LAN
GPIO interface Onboard programmable 8-bit Digital I/O interface
Extended Interface One PCIE x 16 slot, one Mini-PCI Type III A
Internal I/O Port 1 x RS232/422/485, 1 x slim FDD port, 1 x GPIO port, 1 x CDIN
connector, 1 x Audio connector, 1 x IrDA connector and 2 x USB
ports
External I/O Port 2 x RJ45 LAN ports, 1 x DB15 VGA port, 1 x PS/2
Keyboard/Mouse Port, 6 x USB2.0 ports, 1 x SPDIF connector
and 1 x Serial Port
External Audio Line-in, MIC-in, Front, Rear, Center/Subwoofer and Side outputs
Power Requirement Standard 24-pin ATX power supply and P4 4-pin 12V (20-pin is
compatible)
Dimension 170mm x 170mm
Temperature Operating within 0~60 centigrade
Storage within -20~85 centigrade
Multi-I/O Port
Chipset Intel Q35, ICH9DO (82801IO) & 8M SPI
Serial Port One external RS-232 and one internal RS232/422/485 serial ports
USB Port Eight Hi-Speed USB 2.0 ports with 480Mbps of transfer rate
Floppy Port One slim type Floppy port
IrDA Port One IrDA compliant Infrared interface supports SIR
K/B & Mouse External PS/2 keyboard and mouse ports on rear I/O panel
GPIO One 12-pin Digital I/O connector with 8-bit programmable I/O
interface
Smart Fan One CPU fan connectors for fan speed controllable
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LV-678 User’s Manual
VGA Display Interface
Chipset Intel Q35, ICH9DO
Frame Buffer Up to 384MB shared with system memory
Display Type CRT or LCD monitor display
Ethernet Interface
Controller Two Intel 82573L Gigabit Ethernet controller
Type Triple speed 10/100/1000Base-T
Auto-switching Fast Ethernet
Full duplex, IEEE802.3U compliant
Connector Two External RJ45 connectors with LED on rear I/O panel
Audio Interface
Chipset Intel Q35, ICH9DO (82801IO) & 8M SPI
Intel High Definition Audio compliance
Interface 7.1 channels sound output
Connector External six phone jack for 7.1 channel audio on rear I/O panel
External SPDIF connector on rear I/O panel
Internal 10-pin header for line-in/-out, MIC-in, 4-pin header for CD-IN
Expansive Interface
Mini PCI One Mini-PCI socket TYPE IIIA (32-bit, 33MHz)
Power supply: +3.3V, +5V
Power and Environment
Power
Requirement
Dimension 170 (L) mm x 170 (H) mm
Temperature Operating within 0 ~ 60P
Standard ATX 24-pin (20-pin is compatible) power supply
Additional +12V 4-pin power connector
Storage within -20 ~ 85
o
P
C (32 ~ 140P
o
P
P
C (-4 ~ 185P
o
P
F)
o
P
F)
Ordering Code
LV-678 Onboard VGA, 2 x Intel Gigabit LAN, 6 x USB2.0, Mini-PCI, 2 x serial Port,
1 x slim FDD Realtek ALC888 HD 7.1 Channel Audio, 6 x SATA, 1 x IrDA
MP-6421 Mini PCI with one 44-pin Ultra DMA 33 IDE interface supports up to 2
ATAPI devices
1 x Compact Flash Type II and 2 x serial ATA interface
The specifications may be different as the actual production.
For further product information please visit the website at
TUhttp://www.commell.com.twUT
9
LV-678 User’s Manual
1.3 <Block Diagram>
Intel Core 2 Quad / Core 2 Duo Celeron with 775 pin PLGA
Intel GMA3100 Graphics
2 x 240-pin DDR2
PCI-Express x16
Intel Q35
667/800MHz up to
4GB
8 x USB2.0 ports
HD Audio
2 x Serial ports
1 x Slim Floppy
8-bit GPIO
IrDA
10
ICH9DO
SPI
BIOS
6 x Serial ATAII ports
Intel 82573L
2 x GLAN
Mini-PCI slot
PCI bus
LV-678 User’s Manual
1.4 <Mechanical Drawing >
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LV-678 User’s Manual
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LV-678 User’s Manual
V
R
ATX
Chapter 2 <Hardware Setup>
2.1 <Connector Location>
CN_I
CPUFAN
CN_12
FDD
JCSEL2
CN_DIO
JCSEL1
DDRII 1/2
CN_COM2
JFRNT
SYSFAN
JAT
JRTC
S_ATA1~6
PCIE_16X
Mini-PCI
CN_AUDIO
CN_USB
CDIN
RJ45_1/2
COM1
PS2
USB
CRT
Audio
SPDIF
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LV-678 User’s Manual
2.2 <Jumper Reference>
Jumper Function
JRTC CMOS Operating/Clear Setting
JAT Power mode select
Power Mode JAT
AT Mode
ATX Mode
Default setting: ATX Mode
3
1
3
1
3
1
Connector Reference 14
JAT
JRTC
LV-678 User’s Manual
2.3 <Connector Reference>
2.3.1 <Internal Connectors>
Connector Function Remark
CPU LGA775 CPU socket
DDRII1/2 240 -pin DDR2 SDRAM DIMM socket
Slim FDD 26-pin slim type floppy connector
S_ATAII1/2/3/4/5/6 7-pin Serial ATA II connector
ATX 24-pin power supply connector
CN_12V 4-pin +12V additional power supply connector
CN_AUDIO 5 x 2-pin audio connector
CDIN 4-pin CD-ROM audio input connector
CN_DIO 6 x 2-pin digital I/O connector
CN_USB 10-pin USB connector
CPUFAN 4-pin CPU cooler fan connector
SYSFAN 3-pin system cooler fan connector
CN_IR 5-pin IrDA connector
JFRNT 14-pin front panel switch/indicator connector
PCIE_16X 1 PCI Express 16x slot
Mini-PCI 1 x Mini-PCI socket
CN_COM2 5 x 2-pin com connector
2.3.2 <External Connectors>
Connector Function Remark
PS2 PS/2 Keyboard/Mouse connector
CRT+COM1 DB15 VGA + Serial port connector
USB_RJ45_1/2 Dual USB and one RJ45 LAN Port
AUDIO Audio connectors
SPDIF SPDIF digital audio output connector
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LV-678 User’s Manual
f
2.4 <CPU and Memory Setup>
2.4.1 <CPU installation>
LV-678 has a LGA775 CPU socket onboard; please check following steps to install the
processor properly.
AttentionIf LV-678 need RMA please Keep CPU socket cover on the CPU Socket. WarningWarranty void if CPU socket internal pin damage.