Commell MX-7794, LV-674, 2804040 User Manual
MX-7794
Mini-ITX motherboard
User’s Manual
Edition: 1.00
2005/09/30
MX-7794 User’s Manual
2
Copyright
Copyright 2003 - 2004. 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.ipchammer.com
MX-7794 User’s Manual Packing List
3
Packing List
Please check package component before you use our products.
Hardware:
MX-7794 Mini-ITX motherboard x 1
Cable Kit:
40-pin ATA100 IDE flat cable x 1
26-pin slim type floppy cable x 1
Serial ATA ribbon cable x 2
I/O Shield x 1
RAID drivers Disc for Windows 2000,
Windows XP and Windows Server 2003
Other Accessories:
Divers CD (including User’s Manual) x 1
User’s Manual x 1
MX-7794 User’s Manual Index
4
Index
Chapter1 <Introduction>......................................................................................7
1.1 <Product Overview>................................................................................. 7
1.2 <Product Specification> ...........................................................................8
1.3 <Component Placement> ......................................................................10
1.4 <Block Diagram>.................................................................................... 11
1.5<Mechanial Drawing>………………………………………….......12
Chapter 2 <Hardware Setup>.............................................................................13
2.1 <Connector Location>............................................................................ 13
2.2 <Jumper Reference> .............................................................................14
2.3 <Connector Reference>......................................................................... 15
2.3.1 <Internal Connectors>................................................................ 15
2.3.2 <External Connectors>............................................................... 15
2.4 <CPU and Memory Setup>....................................................................16
2.4.1 <CPU installation>...................................................................... 16
2.4.2 <Memory installation> ................................................................ 17
2.5 <CMOS Setup>...................................................................................... 18
2.6 <Enhanced IDE interface>.....................................................................19
2.7 <Serial ATA installation>......................................................................... 20
2.8 <Floppy Installation>..............................................................................21
2.9 <LAN installation> .................................................................................. 22
2.10 <Audio Installation>.............................................................................. 23
2.11 <Display Installation> ........................................................................... 25
2.12 <IEEE1394 and USB Installation> ....................................................... 26
2.13 <Power and Fan Installation> .............................................................. 28
2.14 <GPIO interface> ................................................................................. 30
2.15 <Serial Port> ........................................................................................ 31
2.16 <Switch and Indicator>......................................................................... 32
MX-7794 User’s Manual Index
5
2.17 <Expansion Interface> ......................................................................... 33
Chapter 3 <System Configuration>...................................................................35
3.1 <SATA configuration>............................................................................. 35
3.2 <SATA RAID Configuration> .................................................................. 38
3.3 <Audio Configuration> ...........................................................................42
3.4 <Video Memory Setup> .........................................................................43
3.5 <Display Properties Setting>.................................................................. 45
3.6 <PCI-Express interface setting> ............................................................ 47
Chapter 4 <BIOS Setup> ....................................................................................48
Appendix A <I/O Port Pin Assignment>............................................................50
A.1 IDE Port .................................................................................................50
A.2 <Serial ATA Port>................................................................................... 50
A.3 <Floppy Port> ........................................................................................ 51
A.4 <IrDA Port> ............................................................................................ 51
A.5 <Serial Port>.......................................................................................... 52
A.6 <VGA Port>............................................................................................ 52
A.7 <LAN Port> ............................................................................................ 52
A.8<IEEE 1394 Port>……………………………………………….53
A.9<LAN LED>…………………………………………………….53
A.10<SMBus>………………………………………………………53
Appendix B <System Resources>……………………………………………………54
B.1 I/O Port Address Map......................................................................56
B.2 Memory Address Map.....................................................................57
B.3 System IRQ&DMA Resources…………………………………..…….57
Appendix C <Flash BIOS>.................................................................................58
Appendix D <Programming GPIO's>………………………………………………59
Contact Information…………………………………………………………………..60
MX-7794 User’s Manual
6
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MX-7794 User’s Manual Introduction
Product Overview 7
Chapter1 <Introduction>
1.1 <Product Overview>
MX-7794 is the motherboard with last Intel desktop technology with Mini-ITX form factor.
Based on Intel® 945G and ICH7R, the board integrates a new Pentium 4 processor 775-pin
socket, DDR2 memory socket, Intel® Graphic Media Accelerator 950 technology, PCI
express interface and Serial ATA II with RAID function for a powerful desktop system.
Intel® LGA775 processor
The Intel® Pentium 4 processor now comes with a new form factor with 775-pin PLGA
package, for 533/800/1066MHz front-side-bus, 1MB L2 cache, and for 90nm manufacturing
technology, the PLGA processor without pin header on solder side can make user installing
the processor on the socket easier.
Intel® 945G and ICH7R chipset
The Intel 945G integrates DDR2 400/533/667MHz for memory, and Graphic Media
Accelerator (GMA) 950 technology for new graphic engine. It can provide up to 224MB of
frame buffer when you install over 256MB of system memory. The ICH7R integrates with up
to 4 USB2.0 interfaces (4 ports for MX-7794), and serial ATA II interface with RAID function.
Four Marvell E8053
Four Gigabit LAN with Marvell E8053, MX-7794 comes with a powerful network function for
the system that requires large transfer data of NAS system or Server platform.
PCI-Express interface
MX-7794 integrates a x16 PCI-Express interface, it can provide up to 8GB/s of bandwidth,
which AGP 8x can only provide up to 2GB/s.
Multimedia interfaces
MX-7794 also integrates 7.1 channel AC97 audio, mini-PCI interface and IEEE1394 port, for
these flexible function, system integrator can built more powerful systems for many
applications.
MX-7794 User’s Manual Introduction
Product Specification 8
1.2 <Product Specification>
General Specification
Form Factor Mini-ITX motherboard
CPU Intel® Pentium 4 / Pentium D/ Celeron D processor with
LGA775 socket
Package type: 775 pin PLGA
Front side bus: 533/800/1066MT/s (133/200/266MHz x 4)
Intel® Hyper-Threading Technology and Dual code supported
Memory 2 x 240-pin DDR2 400/533/667MHz SDRAM up to 2GB
Up to 8GB/s of bandwidth with dual-channel interleaved mode
Dual-Channel technology supported
Unbufferred, none-ECC memory supported only
Chipset Intel® 945G (Northbridge) and ICH7R (Southbridge)
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
Watchdog Timer System reset programmable watchdog timer with 1 ~ 255
sec./min. of timeout value
Real Time Clock Intel® ICH7R 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 IDE port onboard
Serial ATAII Intel® ICH7R integrates 4 Serial ATA II interface
RAID 0, 1,5,10 Intel Matrix Storage Technology supported
Multi-I/O Port
Chipset Intel® 82801GR ICH7R with Winbond® W83627THF controller
Serial Port Two external RS-232 serial ports
USB Port Four Hi-Speed USB 2.0 ports with 480Mbps of transfer rate
Parallel Port None
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
VGA Display Interface
Chipset Intel® 945G GMCH (Graphic Memory Controller Hub)
Core Frequency 400MHz
Memory Intel® DVMT 3.0 with up to 224MB shared with system memory
Display Type CRT, LCD monitor with analog display
Connector External DB15 female connector on rear I/O panel
MX-7794 User’s Manual Introduction
Product Specification 9
Ethernet Interface
Chipset 100/1000MT LAN interface with Marvell E8053
Type 10Base-T / 100Base-TX/1000Base-T,
auto-switching Fast Ethernet
Full duplex, IEEE802.3U compliant
Connector Four External RJ45 connectors with LED on rear I/O panel
Audio Interface
Chipset Intel® ICH7R with Realtek® ALC880 codec
Intel High Definition Audio compliance
Interface 7.1 channels sound output
Connector External Audio phone jack for Line-out, Line-in, MIC-in, Surround,
Center and Backsurround
Onboard audio connector with pin header (built-in amplifier for
speaker out)
Onboard CD-IN connector
Expansive Interface
PCI-Express One x16 PCI-Express slot (compatible with x1 slot)
Up to 8GB/s of transfer bandwidth
Power supply: +3.3V, +12V
PCI One Mini-PCI socket TYPE III (32-bit, 33MHz)
Power supply: +3.3V, +5V
IEEE1394 AGERE FW323-06 controller integrated
IEEE1394A supported
Up to 400Mb/s of transferring rate
Power and Environment
Power
Requirement
Standard ATX 24-pin (20-pin is compatible) power supply
Additional +12V 8-pin power connector
Dimension 170 (L) x 170 (H) mm
Temperature Operating within 0 ~ 60oC (32 ~ 140oF)
Storage within -20 ~ 85
o
C (-4 ~ 185oF)
Ordering Code
MX-7794 Intel® Pentium 4 platform with Mini-ITX form factor
LGA775 socket, DDR2, onboard GMA950 VGA, 7.1CH Audio,
SATAII, USB2.0, PCI-Express 16x slot, Mini-PCI, IEEE1394
four Gigabit LAN.
PCIE-SDVOD PCI-Express add-on card for single DVI interface
PCIE-SDVOX PCI-Express add-on card for 18-bit/24-bits Dual channel LVDS
module.
The specifications may be different as the actual production.
For further product information please visit the website at http://www.ipchammer.com
MX-7794 User’s Manual Introduction
Component Placement 10
1.3 <Component Placement>
240-pin DDR2 Memory DIMM
BIOS
LGA 775
Intel 945G
ICH7R
Serial SATA
PCI Express
Marvell E8053 Mini PCI
Audio
VGA
COM2
LAN
KB/Mouse USB&1394
COM1
MX-7794 User’s Manual Introduction
Block Diagram 11
1.4 <Block Diagram>
Intel Pentium 4 with 775 pin PLGA processo
r
Intel GMA950 Graphics
PCI-Express x16
8GB/s
Intel 945G
GMCH
4 x Serial ATA II ports
300MB/s
4 x Marvell E8053
Gigabit LAN
PCI bus
Mini-PCI slot
BIOS
2 x Serial ports
4 x USB2.0 ports
IDE
ICH7R
ALC 880 AC97 7.1CH Codec
2 X IEEE1394
8-bit GPIO
1 x Floppy port
DMI 2GB/s
2 x 240-pin DDR2
400/533/667MHz
up to 2GB
6.4GB/s
SMBus 2.0
MX-7794 User’s Manual Introduction
Mechanial Drawing
12
1.5 <Mechanical Drawing >
MX-7794 User’s Manual Hardware Setup
Connector Location
13
Chapter 2 <Hardware Setup>
2.1 <Connector Location>
ATX
CN_SMBUS
CN_IR
CN_IN
SPDIF
CN_AUDIO
NBFAN
CN_USB
JFRNT
SYSFAN
CN_1394
IDE1
CN_DIO
JRTC
CPUFAN
CN_TXD/RXD
CN_12V
Floppy
LAN_LED
Audio
VGA
COM2
LAN
KB/Mouse USB&1394
COM1
MX-7794 User’s Manual Introduction
Jumper Reference 14
2.2 <Jumper Reference>
Jumper Function
JRTC CMOS Operating/Clear Setting
JRTC
MX-7794 User’s Manual Hardware Setup
Connector Reference 15
2.3 <Connector Reference>
2.3.1 <Internal Connectors>
Connector Function Remark
CPU LGA775 CPU socket Standard
DDRII1/2 240 -pin DDR2 SDRAM DIMM socket Standard
IDE1 40-pin primary IDE connector Standard
FDD 26-pin slim type floppy connector Slim
S_ATAII1/2/3/4 7-pin Serial ATA II connector Standard
ATX 24-pin power supply connector Standard
CN_12V 8-pin +12V additional power supply connector Standard
CN_AUDIO 5 x 2-pin audio connector Standard
CDIN 4-pin CD-ROM audio input connector Standard
CN_DIO 6 x 2-pin digital I/O connector Standard
CN_USB 10-pin USB connector Standard
CPUFAN 4-pin CPU cooler fan connector Standard
SYSFAN 3-pin system cooler fan connector Standard
NBFAN 3-pin Northbridge cooler fan connector Standard
CN_IR 5-pin IrDA connector Standard
CN_SMBUS 4-pin I
2
C connector Standard
CN_TXD/RXD 3-pin TXD/RXD COM port signal connector Standard
JFRNT 14-pin front panel switch/indicator connector Standard
SPDIF Digital audio optical interface Standard
1394 8-pin IEEE 1394 connector Standard
2.3.2 <External Connectors>
Connector Function Remark
VGA DB15 VGA connector Standard
USB Dual USB Port Standard
COM1/2 Serial port connector Standard
PS2 PS/2 Keyboard/Mouse connector Standard
AUDIO Audio connectors Standard
1394 IEEE1394 port Standard
LAN Port Four RJ45 LAN Port Standard
MX-7794 User’s Manual Introduction
CPU Installation 16
2.4 <CPU and Memory Setup>
2.4.1 <CPU installation>
MX-7794 has a LGA755 CPU socket onboard; please check following steps to install the
processor properly.
Intel® Pentium 4 processor
Package type: 775 pin PLGA
L2 Cache: 1MB
FSB: 533/800/1066MHz (266MHz x 4)
Manufacturing: 90nm
Intel Hyper Threading Technology
and Dual code supported
Check point
1. Lift this bar
2. Uncover this plate
3. Place the CPU on the top of
the
p
ins
3. Cover this plate
4. Lock this bar
Notice: Please place the CPU on the pins tenderlyto avoid bendingthe pins
MX-7794 User’s Manual Hardware Setup
Memory Installation 17
2.4.2 <Memory installation>
MX-7794 has two 240-pin DDR2 DIMM support up to 2GB of memory capacity. The memory
frequency supports 400/533/667MHz .Only Non-ECC memory is supported. Dual-Channel
technology is supported while applying two same modules.
DDRII2 (DIMM2)
DDRII1
(
DIMM1)
128-pin 112-pin
Please check the pin number to match the socket side well
before installing memory module.
MX-7794 User’s Manual Introduction
CMOS Setup 18
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: JRTC
Type: Onboard 3-pin jumper
JRTC Mode
1-2 Clear CMOS
2-3 Normal Operation
Default setting
1
JRTC
3
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