Commell LE-374 User manual

LE-374
3.5 inch Miniboard
User’s Manual
Edition 2.1
2010/06/14

LE-374 User’s Manual
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Copyright
Copyright 2009. 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 TUhttp://www.commell.com.twUT

LE-374 User’s Manual
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Packing List:
Please check the package content before you starting using the board.
Hardware:
LE-374 3.5“ Miniboard x 1
Cable Kit:
44-pin
44-pin
ATA33 IDE Cable x1
(OALUDMA33-8) SATA Cable x 1
(OALSATA-L)
DVI module x 1 (LE-374 only)
(ADPDVI + OALDVI-P)
SATA Power Cable x 1
(OAL4P-S1)
PS/2 keyboard & mouse cable x 1
(OALPS2/MK)
Printed Matters:
Driver CD x 1 (Including User’s Manual)
USB Cable x 1
(OALUSBA-3)
DC Power Cable x 1
(OALDC-2)
1 to 3 power output cable
(
O
AL4P-2
)
Audio Port Cable x 1
(OALPJ-SANB)
COM Port Cable x 1
(OALES-BKU1NB)
YPbPr Cable x 1
(OALTV-OUT-H)
Optional:
SDTV Cable x 1
(OALTV-OUT)

LE-374 User’s Manual
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Index
Chapter 1 <Introduction>................................................................6
1.1 <Product Overview>..................................................................................6
1.2 <Product Specification>.............................................................................7
1.3 <Mechanical Drawing>..............................................................................9
1.4 <Mechanical Drawing>............................................................................10
Chapter 2 <Hardware Setup>..................................................... 11
2.1 <Connector Location>............................................................................. 11
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
2.5 <CMOS＆ATX Setup>.............................................................................16
2.6 <Enhanced IDE & CF Interface>.............................................................17
2.7 <Serial ATA Interface>............................................................................18
2.8 <LAN Interface> ......................................................................................18
2.9 <Onboard Display Interface> ..................................................................19
2.9.1 <Analog VGA Interface> ........................................................19
2.9.2 <Digital Display>.....................................................................20
2.9.3 <DVI Interface > .....................................................................24
2.9.4 <TV-out Interface> .................................................................25
2.10 <Onboard Audio Interface>...................................................................26
2.11 <USB2.0 Interface>...............................................................................27
2.12 <GPIO Interface> ..................................................................................28
2.13 <Serial Port Jumper Setting > ...............................................................29
2.14 <Power and Fan Connector >...............................................................31
2.14.1 <Power Input>......................................................................31
2.14.2 <Power Output>...................................................................32
2.14.3 <Fan Connector> .................................................................32

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2.15 <Indicator and Switch>..........................................................................33
Chapter 3 <System Configuration>.......................................35
3.1 <Video Memory Setup>...........................................................................35
3.2 <Audio Configuration >............................................................................37
Chapter 4 <BIOS Setup>................................................................39
Appendix A <I/O Port Pin Assignment>.............................41
A.1 <IDE Port>...............................................................................................41
A.2 <IrDA Port>..............................................................................................42
A.3 < CRT Port > ...........................................................................................42
A.4 <Serial ATA Port> ....................................................................................42
A.5 <Serial Port> ...........................................................................................43
A.6 <LAN Port>..............................................................................................43
Appendix B <Flash BIOS>............................................................44
B.1 BIOS Auto Flash Tool..............................................................................44
B.2 Flash Method...........................................................................................44
Appendix C <System Resources>.........................................45
C.1 <I/O Port Address Map> .........................................................................45
C.2 <Memory Address Map >........................................................................47
C.3 < System IRQ Resources >....................................................................48
Appendix D <Programming GPIO’s>....................................49
Appendix E <Watch Dog timer Setting >...........................50
Contact Information..........................................................................52

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LE-374 User’s Manual
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Chapter 1 <Introduction>
1.1 <Product Overview>
LE-374 is the 3.5 inch miniboard, with Intel® Atom N270 processor for 533 MHz front
side bus, Intel® 945GSE and ICH7M chipset, integrated GMA950 graphics, DDR2
SO-DIMM memory, Realtek AC97 Audio, Serial ATA and one Intel® 82574L Gigabit
LAN.
Intel Atom Processor
The Intel® Atom N270 single core processor is with 533 MHz front side bus, 512KB L2
cache. It's built on 45nm process technology support Hyper-Threading Technology,
Enhanced Intel SpeedStep® Technology reduces average system power consumption.
Mobile Intel® 945GSE chipset
The board integrates Intel® 945GSE and ICH7M chipset. The chipset features
power-efficient graphics with an integrated 32-bit 3D graphics engine based on Intel®
Graphics Media Accelerator 950 architecture with DVI, LVDS, CRT, and
TV-Out display ports. It provides I/O capabilities and flexibility via high-bandwidth
interfaces such as PCI, Serial ATA and Hi-Speed USB 2.0 connectivity. It also includes a
single channel for 400/533 MHz DDR2 system memory (SODIMM), AC97 Audio with 5.1
channels surrounding sound.
All in One multimedia solution
Based on Intel 945GSE and ICH7M chipset, the board provides high performance
onboard graphics, 18-bit Dual channel LVDS interface, DVI and HDTV and 5.1 channels
AC97 Audio, to meet the every requirement of the multimedia application.
Flexible Extension Interface
The board also provides Compact Flash Type II socket and one mini-PCI socket.

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1.2 <Product Specification>
General Specification
Form Factor 3.5 inch miniboard
CPU Intel® Atom N270 processor
Package type: FCBGA8
Front side bus: 533MHz
Memory 1 x 200-pin DDR2 SO-DIMM SDRAM up to 2GB
Unbufferred, none-ECC memory supported only
Chipset Intel® 945GSE and ICH7M
BIOS Phoenix-Award v6.00PG 8Mb SPI flash BIOS
Green Function Power saving mode includes doze, standby and suspend modes.
ACPI version 1.0 and APM version 1.2 compliant
Watchdog Timer System reset programmable watchdog timer with 1 ~ 255
sec./min. of timeout value
Real Time Clock Intel® ICH7M built-in RTC with lithium battery
Enhanced IDE UltraDMA33 IDE interface supports up to 2 ATAPI devices
One 44-pin IDE port onboard
One CompactFlash Type II socket on solder side
Serial ATA Intel® ICH7M integrates 2 Serial ATA interfaces
(No RAID Function)
Up to 150MB/s of transfer rate
Multi-I/O Port
Chipset Intel® ICH7M with Winbond® W83627THG controller
Serial Port One RS-232/422/485 serial port and one RS-232
USB Port Two external & two internal Hi-Speed USB 2.0 ports with
480Mbps of transfer rate
IrDA Port One IrDA compliant Infrared interface supports SIR
K/B & Mouse PS/2 keyboard and mouse port
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
VGA Display Interface
Chipset Intel® 945GSE GMCH (Graphic Memory Controller Hub)
Frame Buffer Up to 224MB shared with system memory
Display Type CRT, LCD monitor with analog display, HDTV, DVI (LE-374 only)
Connector External DB15 female connector on rear I/O panel
Onboard 40-Pin LVDS connector
Onboard 26-Pin DVI connector (LE-374 only)
Onboard 10-Pin TV-out connector

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Ethernet Interface
Controller 1 x Intel 82574L Gigabit Ethernet controller
Type Triple speed 10/100/1000Base-T
auto-switching Fast Ethernet
Full duplex, IEEE802.3U compliant
Connector One External RJ45 connector with LED on rear I/O panel
Audio Interface
Chipset REALTEK ALC655
Interface 5.1 channel surround audio with Line-in, Line-out and MIC-in
Connector Onboard audio connector with pin header
Onboard CD-IN connector
Expansive Interface
Mini PCI 1 x Mini PCI socket
Power and Environment
Power
Requirement DC 9~24V input with onboard 4-pin connector
Dimension 146 (L) x 101(H) mm
Temperature Operating within 0 ~ 60℃
Storage within -20 ~ 85℃
Ordering Code
LE-374 Support Intel Atom N270 processor with onboard VGA, HDTV,
DVI, LVDS, Audio, SATA, Giga LAN, USB2.0, CF, GPIO, Mini
PCI, FDD
LE-374X Support Intel Atom N270 processor with onboard VGA, HDTV,
DVI, LVDS (18/ 24 bit ), Audio, SATA, Giga LAN, USB2.0, CF,
GPIO, Mini PCI, FDD
The specifications may be different as the actual production.
For further product information please visit the website at TUhttp://www.commell.com.twUT