AMD MD740 User manual

MB740
AMD Geode NX
Mini-ITX Motherboard
USER’S MANUAL
Version 1.0

ii MB740 User’s Manual
Acknowledgments
Award is a registered trademark of Award Software International,
Inc.
PS/2 is a trademark of International Business Machines
Corporation.
AMD is a trademark of Advanced Micro Devices, Inc.
Microsoft Windows is a registered trademark of Microsoft
Corporation.
Winbond is a registered trademark of Winbond Electronics
Corporation.
All other product names or trademarks are properties of their
respective owners.

MB740 User’s Manual iii
Table of Contents
Introduction.......................................................1
Product Description.............................................................1
Checklist..............................................................................2
MB740 Specifications.........................................................3
Board Dimensions...............................................................4
Installations.......................................................5
Installing the CPU...............................................................6
Installing the Memory.........................................................7
Setting the Jumpers .............................................................8
Connectors on MB740 ......................................................11
BIOS Setup.......................................................21
Drivers Installation......................................41
SIS 741CX Chipset VGA Driver ......................................42
SIS Chipset Ethernet Driver..............................................45
Realtek Gigabit Ethernet Driver........................................46
Realtek AC97 Codec Driver .............................................47
Appendix...........................................................49
A. I/O Port Address Map...................................................49
B. Interrupt Request Lines (IRQ)......................................50
C. Watchdog Timer Configuration....................................52
D. Digital I/O Sample Code..............................................56

THE MB740 MINI ITX MOTHERBOARD
iv MB740 User’s Manual

INTRODUCTION
MB740 User’s Manual 1
Introduction
Product Description
The MB740 Mini ITX board incorporates a Socket A processor socket that
supports AMD Geode NX series processors that support processor speed up to
1.4GHz. With the SIS 741CX chipset, it delivers maximum performance for
demanding thin client or embedded applications that require silent system
operation. With a higher processor speed and active cooling, it is best suited for
demanding applications such as graphics and point of sales systems. The board
comes with integrated chipset VGA and Ethernet controllers. Optionally
provided is a Realtek Gigabit Ethernet and daughter cards for CRT2/TMDS or
LVDS/TV out interface.
Features
Socket A for AMD Geode NX processor
Up to 1.4GHz speed, 133MHz FSB
DDR DIMM x 1, max. 1GB, DDR266/333
Onboard 10/100 and Optional Realtek 8110S Gigabit LAN
Integrated SiS 741CX CRT VGA
Optional CRT2/DVI, optional LVDS/TV out
2 x SATA, 6 x USB 2.0, 2 x COM, watchdog timer
Digital I/O, optional 1394, 1x PCI, 1x Mini PCI
Dimensions of the board are 170mm x 170mm. Optional daughter cards include
IBA140-301 support CRT2/DVI and IBA140-302 supporting LVDS/TV out.

INTRODUCTION
2MB740 User’s Manual
Checklist
Your MB740 package should include the items listed below.
•The MB740 AMD Geode Mini-ITX motherboard
•This User’s Manual
•1 CD containing chipset drivers and flash memory utility
•Cable kit (40-pin IDE, Serial port, Serial ATA)
440

INTRODUCTION
MB740 User’s Manual 3
MB740 Specifications
[
Features Socket A for AMD Geode NX processor
Up to 1.4GHz speed, 133MHz FSB
DDR DIMM x 1, max. 1GB, DDR266/333
Onboard 10/100 and Optional Realtek 8110S Gigabit LAN
Integrated SiS 741CX CRT VGA
Optional CRT2/DVI, optional LVDS/TV out
2 x SATA, 6 x USB 2.0, 2 x COM, watchdog timer
Digital I/O, optional 1394, 1x PCI, 1x Mini PCI
System
CPU Socket A (462-pin) for AMD Geode, up to 1.4GHz
(NX1250 = 667MHz, NX1500 = 1GHz, NX1750 =1.4GHz)
System Memory DDR DIMM x 1, max. 1GB, DDR333
System Chipset SiS 741CX + SiS 964
BIOS Award 4Mbit
Watchdog Timer 256 levels
SSD Optional CF socket (on solder side via IDE2)
H/W Monitor Yes
Expansion Slot 1 PCI, 1 Mini PCI, 1 MicroAGP
Graphics
VGA Controller SiS 741CX integrated for CRT
VGA Memory Shared memory; Max. 64MB
LCD / TV-out / DVI /
CRT2 Optional SiS 302LV MicroAGP card (IBA140-302)
supports 18/24-bit dual channel LVDS and TV out;
Optional SiS 301 MicroAGP card (IBA140-301)
supports DVI/CRT2 interface
Ethernet
Controller SiS 964 built-in 10/100 and Optional Realtek
RTL8110S-32 Gigabit LAN
Multi I/O
Chipset SiS 964, ITE 8705
2x IDE (UDMA33/66/100), 1x FDD, 1x KB, 1x Mouse; 2x
RS-232, 2x SATA
USB 4 ports on board
Pin header for 2 additional ports (USB 2.0)
Audio SiS 964 built-in audio + AC97 codec, SPDIF support;
2W+2W volume amplifier
Others 1394, ATX power connector
Mechanical and Environmental
Dimensions 170mm x 170mm

INTRODUCTION
Board Dimensions
4MB740 User’s Manual

INSTALLATIONS
MB740 User’s Manual 5
Installations
This section provides information on how to use the jumpers and
connectors on the MB740 in order to set up a workable system. The
topics covered are:
Installing the CPU........................................................................ 6
Installing the Memory.................................................................. 7
Setting the Jumpers...................................................................... 8
Connectors on MB740............................................................... 11

INSTALLATIONS
Installing the CPU
The MB740 board supports a Socket A processor socket for AMD NX
Series processors.
The Socket A processor socket comes with a lever to secure the
processor. Raise this lever to about a 90°angle to allow the insertion of
the processor. Place the processor into the socket by making sure the
notch on the corner of the CPU corresponds with the notch on the inside
of the socket. Once the processor has slide into the socket, return the
lever to the lock position. Refer to the figures below.
After you have installed the processor into the socket, check if the
jumpers for the CPU type and speed are correct.
NOTE: Ensure that the CPU heat sink and the CPU top surface are in
total contact to avoid CPU overheating problem that would
cause your system to hang or be unstable.
6MB740 User’s Manual

INSTALLATIONS
Installing the Memory
The MB740 board supports one DDR memory socket for a maximum
total memory of 1GB in DDR memory type.
Installing and Removing Memory Modules
To install the DDR modules, locate the memory slot on the board and
perform the following steps:
1. Hold the DDR module so that the key of the DDR module align with
those on the memory slot.
2. Gently push the DDR module in an upright position until the clips of
the slot close to hold the DDR module in place when the DDR module
touches the bottom of the slot.
3. To remove the DDR module, press the clips with both hands.
MB740 User’s Manual 7

INSTALLATIONS
8MB740 User’s Manual
Setting the Jumpers
Jumpers are used on MB740 to select various settings and features
according to your needs and applications. Contact your supplier if you
have doubts about the best configuration for your needs. The following
lists the connectors on MB740 and their respective functions.
Jumper Locations on MB740..........................................................9
JP8: CompactFlash Slave/Master Selection..................................10
JP9: 1394 EPROM Write Selection..............................................10
JP12: Clear CMOS Setting...........................................................10
JP14: RTL8110S-32 LAN Enable / Disable.................................10

INSTALLATIONS
Jumper Locations on MB740
Jumpers on MB740...........................................................................Page
JP8: CompactFlash Slave/Master Selection ........................................ 10
JP9: 1394 EPROM Write Selection..................................................... 10
JP12: Clear CMOS Setting.................................................................. 10
JP14: RTL8110S-32 LAN Enable / Disable........................................ 10
MB740 User’s Manual 9

INSTALLATIONS
JP8: CompactFlash Slave/Master Selection (option)
Remarks: The CF socket and its corresponding slave/master Selection is
optional.
JP8 CF Setting
Master
Slave
JP9: 1394 EPROM Write Selection
JP9 1394 EPROM
For EPROM Write
Normal
JP12: Clear CMOS Setting
JP12 Setting
Normal
Clear CMOS
JP14: RTL8110S-32 LAN Enable / Disable
JP14 Gigabit LAN
Disable
Enable
[
10 MB740 User’s Manual

INSTALLATIONS
MB740 User’s Manual 11
Connectors on MB740
The connectors on MB740 allows you to connect external devices such
as keyboard, floppy disk drives, hard disk drives, printers, etc. The
following table lists the connectors on MB740 and their respective
functions.
Connector Locations on MB740 .................................................. 12
KBMS1: PS/2 Keyboard and PS/2 Mouse Connectors................ 13
CN3: COM1 and VGA Connector............................................... 13
CN4: 10/100 RJ-45 and USB1/2 Ports......................................... 14
CN5: 1394 Connector................................................................... 14
J3: SPDIF Out Connector............................................................. 14
CN6: GbE RJ-45 and USB3/4 Ports............................................. 14
CN7: Audio Connector................................................................. 14
PWR1: ATX Power Supply Connector........................................ 14
FAN1: System Fan Power Connector .......................................... 15
FAN2: CPU Fan Power Connector .............................................. 15
IDE1, IDE2: 40-pin and 44-pin IDE Connectors......................... 15
FDD1: Floppy Drive Connector................................................... 16
CN1: Digital I/O........................................................................... 17
J1: USB5/6 Port Pin Header......................................................... 17
CN2: COM2 Serial Port ............................................................... 17
J2: 1394 Pin Header ..................................................................... 17
J4: Mini PCI Connector................................................................ 17
J5: System Function Connector.................................................... 18
J6: Front Audio Connector........................................................... 18
J7: CD-In Pin Header................................................................... 18
CN8: Speaker Connector.............................................................. 18
CN9, CN10: Serial ATA Connectors........................................... 19
CN11: Compact Flash Connector................................................. 19
J13: IrDA Connector.................................................................... 19
PCI1: PCI Slot (supports 2 Master).............................................. 19
AGP1: MicroAGP Socket ............................................................ 19

INSTALLATIONS
Connector Locations on MB740
Remarks: GB LAN and 1394 are options found on MB740F only.
12 MB740 User’s Manual

INSTALLATIONS
KBMS1: PS/2 Keyboard and PS/2 Mouse Connectors
PS/2 Mouse
PS/2 Keyboard
Signal Name Keyboard Mouse Signal Name
Keyboard data 1 1 Mouse data
N.C. 2 2 N.C.
GND 3 3 GND
5V 4 4 5V
Keyboard clock 5 5 Mouse clock
N.C. 6 6 N.C.
CN3: COM1 and VGA Connector
[ Signal Name Pin # Pin # Signal Name
DCD 1 6 DSR
RXD 2 7 RTS
TXD 3 8 CTS
DTR 4 9 RI
GND 5 10 Not Used
[[[[ Signal Name Pin # Pin # Signal Name
Red 1 2 Green
Blue 3 4 N.C.
GND 5 6 GND
GND 7 8 GND
N.C. 9 10 GND
N.C. 11 12 N.C.
HSYNC 13 14 VSYNC
NC 15
MB740 User’s Manual 13

INSTALLATIONS
CN4: 10/100 RJ-45 and USB1/2 Ports
CN5: 1394 Connector
J3: SPDIF Out Connector
CN6: GbE RJ-45 and USB3/4 Ports
CN7: Audio Connector
The audio connector, from top to bottom, is composed of Line in, Line
out and Microphone jacks.
PWR1: ATX Power Supply Connector
Signal Name Pin # Pin # Signal Name
3.3V 13 1 3.3V
-12V 14 2 3.3V
Ground 15 3 Ground
PS-ON 16 4 +5V
Ground 17 5 Ground
Ground 18 6 +5V
Ground 19 7 Ground
-5V 20 8 Power good
+5V 21 9 5VSB
+5V 22 10 +12V
+5V 23 11 +12V
Ground 24 12 +3.3V
14 MB740 User’s Manual

INSTALLATIONS
FAN1: System Fan Power Connector
FAN1 is a 3-pin header for system fans. The fan must be a 12V (500mA)
fan.
Pin # Signal Name
1 Ground
2 +12V
3 Rotation detection
FAN2: CPU Fan Power Connector
FAN2 is a 3-pin header for the CPU fan. The fan must be a 12V fan. The
CPU fan has a Smart Fan function that can be enabled with the BIOS.
Pin # Signal Name
1 Ground
2 +12V
3 Rotation detection
IDE1, IDE2: 40-pin and 44-pin IDE Connectors
IDE1
Signal Name Pin # Pin # Signal Name
Reset IDE 1 2 Ground
Host data 7 3 4 Host data 8
Host data 6 5 6 Host data 9
Host data 5 7 8 Host data 10
Host data 4 9 10 Host data 11
Host data 3 11 12 Host data 12
Host data 2 13 14 Host data 13
Host data 1 15 16 Host data 14
Host data 0 17 18 Host data 15
Ground 19 20 Protect pin
DRQ0 21 22 Ground
Host IOW 23 24 Ground
Host IOR 25 26 Ground
IOCHRDY 27 28 Host ALE
DACK0 29 30 Ground
IRQ14 31 32 No connect
Address 1 33 34 No connect
Address 0 35 36 Address 2
Chip select 0 37 38 Chip select 1
Activity 39 40 Ground
MB740 User’s Manual 15

INSTALLATIONS
IDE2
Signal Name Pin # Pin # Signal Name
Reset IDE 1 2 Ground
Host data 7 3 4 Host data 8
Host data 6 5 6 Host data 9
Host data 5 7 8 Host data 10
Host data 4 9 10 Host data 11
Host data 3 11 12 Host data 12
Host data 2 13 14 Host data 13
Host data 1 15 16 Host data 14
Host data 0 17 18 Host data 15
Ground 19 20 Key
DRQ0 21 22 Ground
Host IOW 23 24 Ground
Host IOR 25 26 Ground
IOCHRDY 27 28 Host ALE
DACK0 29 30 Ground
IRQ14 31 32 No connect
Address 1 33 34 No connect
Address 0 35 36 Address 2
Chip select 0 37 38 Chip select 1
Activity 39 40 Ground
Vcc 41 42 Vcc
Ground 43 44 N.C.
FDD1: Floppy Drive Connector
FDD1is a slim 26-pin connector and will support up to 2.88MB FDD.
Signal Name Pin # Pin # Signal Name
VCC 1 2 INDEX
VCC 3 4 DRV_SEL
VCC 5 6 DSK_CH
NC 7 8 NC
NC 9 10 MOTOR
DINST 11 12 DIR
NC 13 14 STEP
GND 15 16 WDATA
GND 17 18 WGATE
GND 19 20 TRACK
NC 21 22 WPROT
GND 23 24 RDATA
GND 25 26 SIDE
16 MB740 User’s Manual
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