Rosch Computer MB770 User manual

MB770
VIA CN700
Mini ITX Motherboard
USER’S MANUAL
Version 1.0

ii MB770 User’s Manual
Acknowledgments
Award is a registered trademark of Award Software International,
Inc.
PS/2 is a trademark of International Business Machines
Corporation.
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.

MB770 User’s Manual iii
Table of Contents
Introduction.......................................................1
Product Description.............................................................1
Checklist..............................................................................2
Specifications......................................................................3
Board Dimensions...............................................................4
Installations.......................................................5
Installing the Memory.........................................................6
Setting the Jumpers .............................................................7
Connectors on MB770 ......................................................11
BIOS Setup.......................................................29
Drivers Installation......................................51
VIA CN700 4 in 1 Driver Installation...............................52
Realtek AC’97 Codec Audio Driver Installation..............54
VIA VT8237 LAN Driver Installation..............................55
Realtek Gigabit LAN Driver Installation..........................55
VIA RAID Driver Installation...........................................56
VIA CN700 VGA Driver Installation...............................58
Appendix...........................................................59
A. I/O Port Address Map...................................................59
B. Interrupt Request Lines (IRQ)......................................60

iv MB770 User’s Manual
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INTRODUCTION
MB770 User’s Manual 1
Introduction
Product Description
The MB770 Mini ITX board incorporates the VIA CN700 chipset.
Currently, the board is available in two models, namely:
1. MB770 - VIA Eden-V4 400MHz, CN700 chipset, Mini-ITX w/
10/100 LAN, VGA, Mini PCI, SATA
2. MB770F - VIA Eden-V4 1GHz, CN700 chipset, Mini-ITX w/ 10/100
LAN, Gigabit LAN, VGA, Mini PCI, SATA, TV out
Optional for the MB770/MB770F is the ID393 daughter card that
supports DVI interface.
Basically, the MB770 has the following features:
•VIA CN700 Chipset with VIA CPU
•Up to 1GHz speed and 1GB DDR2 memory
•Integrated VGA, support 18/24-bit LVDS LCD
•10/100 LAN1 on board, optional Gigabit LAN for LAN2
•6 x USB, 2 x SATA ports
•4 COM ports, Watchdog timer
•PCI and Mini PCI slots on board, optional TV out
Remarks: The onboard PCI slot supports 2 masters.

INTRODUCTION
2 MB770 User’s Manual
Checklist
Your MB770 package should include the items listed below.
•The MB770 VIA Eden-V4 Mini-ITX motherboard
•This User’s Manual
•1 CD containing chipset drivers and flash memory utility
•Cable kit (IDE, Serial port, Serial ATA)
•Optional daughter cards: ID393: VIA VT1632A, single DVI
•Optional cables: USB cable (USB2K-4), Audio cable
(AUDIO-1), SATA Power cable (PW34), Slim FDD cable (FF2)

INTRODUCTION
MB770 User’s Manual 3
Specifications
Product Name MB770
Form Factor Mini ITX
CPU Type VIA C7 or Eden-V4 NanoBGA2 (21x21mm) package
Eden-V4: 1.0~1.2GHz (heatsink only for fanless)
C7: 1.5~2.0GHz (heatsink w/ fan)
CPU Voltage 1.004V ~ 1.148V
CPU FSB 400MHz/533MHz
Cache 128KB L2 (CPU integrated)
Green / APM APM1.2
Chipset VIA CN700/8237R+ chipset
North bridge: CN700 567-pin HSBGA
South bridge: VT8237R+ 539-pin PBGA
BIOS Award BIOS supports ACPI function
Memory One DDR2 DIMM socket, supports up to 1GB
VGA VIA CN700 built-in 128-bit Unichrome Pro 3D/2D controller
DVI ID393: VIA VT1632A for DVI with DVI edge connector (above the
dual USB stack)
REMARKS: When ID393 is used, dual independeng display (DVI +
LVDS extension mode) is not supported. Mirror mode is supported
(DVI and LVDS with same display); DVI / LVDS single display is
supported.
LVDS VIA VT1631L for 18 or 24 dual channel LVDS
LAN LAN1: VIA 8237R+ built-in 10/100 + VIA VT6103 PHY
LAN2: / RTL8110S-32 Gigabit LAN (option on MB770F)
USB VIA VT8237R+ built-in USB 2.0, supports 6 ports
Serial ATA VIA VT8237R+ built-in SATA controller, supports 2 ports w/ RAID 0,
1, (VT8237R+ supports SATA II)
IDE Interface Two channels; supports Ultra DMA 33/66/100/133
A
udio VIA VT8237R+ built-in Audio controller + AC97 Codec ALC 655; 5.1
Channel (Line-out, Line-in & Mic.)
LPC I/O Winbond W83697HF: COM1, COM2 (RS-232), IrDA, Floppy &
hardware monitor (2 thermal inputs, 5 voltage monitor inputs, 1
chassis open detection & 2 fan headers). Parallel port not used
Secondary I/O Fintek F81216D for COM3, 4 (RS-232)
RTC/CMOS VIA VT8237R+ built-in RTC with on board Lithium Battery
KB/Mouse Supports PS/2 Keyboard/Mouse
Expansion Slot PCI slot x 1 (supports 2 bus masters) and Mini-PCI x 1
Edge
Connectors PS/2 KB & MS, RCA Jack + S-Video connector, DVI, VGA, COM1,
RJ45, dual USB, optional 2nd RJ45 for MB770F, dual USB for
USB3/4, Audio connectors (Speaker, Line In, Mic)
On Board
Connector /
Header
2 Serial ATA connectors, IDE1 40-pin box-header, IDE2 44-pin
header, 2 LVDS DF13 20-pin header, COM2/3/4 30-pin header,
Audio 12-pin header, USB5/6 8-pin header, slim type FDD header,
IrDA 5-pin header, System function 20-pin header
Power
Connector ATX power connector
Watchdog
Timer Yes (256 segments: 0, 1, 2,..., 255 sec/min)
Board Size 170mm x 170mm

INTRODUCTION
4 MB770 User’s Manual
Board Dimensions

INSTALLATIONS
MB770 User’s Manual 5
Installations
This section provides information on how to use the jumpers and
connectors on the MB770 in order to set up a workable system. The
topics covered are:
Installing the Memory.................................................................. 6
Setting the Jumpers...................................................................... 7
Connectors on MB770............................................................... 11

INSTALLATIONS
6 MB770 User’s Manual
Installing the Memory
The MB770 board supports one DDR2 memory socket for a maximum
total memory of 1GB in DDR2 memory type.
Installing and Removing Memory Modules
To install the DDR2 modules, locate the memory slot on the board and
perform the following steps:
1. Hold the DDR2 module so that the key of the DDR2 module align
with those on the memory slot.
2. Gently push the DDR2 module in an upright position until the clips of
the slot close to hold the DDR2 module in place when the DDR2
module touches the bottom of the slot.
3. To remove the DDR2 module, press the clips with both hands.
DDR2 Module
Lock Lock
Lock Lock

INSTALLATIONS
MB770 User’s Manual 7
Setting the Jumpers
Jumpers are used on MB770 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 MB770 and their respective functions.
Jumper Locations on MB770......................................................... 8
JP1: COM3 RS232 +5V / +12V Power Setting ............................. 9
JP2: COM4 RS232 +5V / +12V Power Setting ............................. 9
JP3: LCD Panel Power Selection................................................... 9
JP4: LCD Panel Channel Selection ................................................ 9
J10: Secondary IDE UDMA Selection......................................... 10
JBAT1: Clear CMOS Setting....................................................... 10

INSTALLATIONS
8 MB770 User’s Manual
Jumper Locations on MB770
Jumpers on MB770................................................................... Page
JP1: COM3 RS232 +5V / +12V Power Setting..............................9
JP2: COM4 RS232 +5V / +12V Power Setting..............................9
JP3: LCD Panel Power Selection....................................................9
JP4: LCD Panel Channel Selection ................................................9
J10: Secondary IDE UDMA Selection.........................................10
JBAT1: Clear CMOS Setting .......................................................10

INSTALLATIONS
MB770 User’s Manual 9
JP1: COM3 RS232 +5V / +12V Power Setting
Pin # Signal Name JP1 Signal Name Pin #
1 RI +12V 2
3 RI (Default) RI (Default) 4
5 RI +5V 6
COM3 Settings: Pin 1-2 short = +12V, Pin 5-6 short = +5V, Pin 3-4
Standard COM Port
JP2: COM4 RS232 +5V / +12V Power Setting
Pin # Signal Name JP2 Signal Name Pin #
1 RI +12V 2
3 RI (Default) RI (Default) 4
5 RI +5V 6
COM4 Settings: Pin 1-2 short = +12V, Pin 6-5 short = +5V, Pin 3-4
Standard COM Port
JP3: LCD Panel Power Selection
JP3 LCD Panel Power
3.3V
5V
JP4: LCD Panel Channel Selection
JP4 Setting
Dual
Single

INSTALLATIONS
10 MB770 User’s Manual
J10: Secondary IDE UDMA Selection
J10 UDMA Setting
GPI Selection
UDMA33 (Default)
[
JBAT1: Clear CMOS Setting
JBAT1 Setting
Normal
Clear CMOS

INSTALLATIONS
MB770 User’s Manual 11
Connectors on MB770
The connectors on MB770 allows you to connect external devices such
as keyboard, floppy disk drives, hard disk drives, printers, etc. The
following table lists the connectors on MB770 and their respective
functions.
Connector Locations on MB770 .................................................. 12
PS2-KBMS: PS/2 Keyboard and PS/2 Mouse Connectors.......... 13
CN2: TV out RCA and S-Video Connector................................. 13
CN3: COM1 and VGA Connector............................................... 13
CN4: 10/100 RJ-45 and USB1/2 Ports......................................... 14
CN5: USB3/4 Ports...................................................................... 14
J6: Gigabit LAN RJ-45................................................................. 14
CN7, CN9: Serial ATA Connectors............................................. 14
CN8: Line Out, Line In, Mic Connector ...................................... 14
FAN1: CPU Fan Power Connector .............................................. 14
FAN2: System Fan Power Connector .......................................... 14
IDE1, IDE2: Primary and Secondary IDE Connectors ................ 15
FDD1: Floppy Drive Connector................................................... 16
J2: Serial Ports.............................................................................. 16
J3: IrDA Connector...................................................................... 17
J4: Wake On LAN Connector ...................................................... 17
J5: Digital I/O............................................................................... 17
J7: USB5/6 Port Pin Header......................................................... 17
J8: GDVP (DVI) Port Connector ................................................. 18
J9: LCD Inverter Output............................................................... 18
J11, J12: LVDS Connectors (1st channel, 2nd channel).............. 18
J13: External Audio Connector .................................................... 19
J15: CD-in Connector................................................................... 19
J16: System Function Connector.................................................. 19
CN1: ATX Power Supply Connector........................................... 21
CN6: Mini PCI Connector............................................................ 21
PCI1: PCI Slot (supports 2 Master).............................................. 21
ID393 - MB770 Daughter Card.................................................... 22
J1: DVI Connector (DVI-D, for single DVI) ............................... 22
J2: GDVP (DVI) Port Connector ................................................. 22

INSTALLATIONS
12 MB770 User’s Manual
Connector Locations on MB770
Connectors on MB770..............................................................................................................Page
Connector Locations on MB770 ..................................................................................................12
PS2-KBMS: PS/2 Keyboard and PS/2 Mouse Connectors..........................................................13
CN2: TV out RCA and S-Video Connector.................................................................................13
CN3: COM1 and VGA Connector...............................................................................................13
CN4: 10/100 RJ-45 and USB1/2 Ports.........................................................................................14
CN5: USB3/4 Ports ......................................................................................................................14
J6: Gigabit LAN RJ-45.................................................................................................................14
CN7, CN9: Serial ATA Connectors.............................................................................................14
CN8: Line Out, Line In, Mic Connector......................................................................................14
FAN1: CPU Fan Power Connector ..............................................................................................14
FAN2: System Fan Power Connector ..........................................................................................14
IDE1, IDE2: Primary and Secondary IDE Connectors................................................................15
FDD1: Floppy Drive Connector...................................................................................................16
J2: Serial Ports..............................................................................................................................16
J3: IrDA Connector ......................................................................................................................17
J4: Wake On LAN Connector ......................................................................................................17
J5: Digital I/O...............................................................................................................................17
J7: USB5/6 Port Pin Header.........................................................................................................17
J8: GDVP (DVI) Port Connector .................................................................................................18
J9: LCD Inverter Output...............................................................................................................18
J11, J12: LVDS Connectors (1st channel, 2nd channel) .............................................................18
J13: External Audio Connector....................................................................................................19
J15: CD-in Connector...................................................................................................................19
J16: System Function Connector..................................................................................................19
CN1: ATX Power Supply Connector...........................................................................................21
CN6: Mini PCI Connector............................................................................................................21
PCI1: PCI Slot (supports 2 Master)..............................................................................................21

INSTALLATIONS
MB770 User’s Manual 13
PS2-KBMS: 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.
CN2: TV out RCA and S-Video Connector
Top connector: S-Video
Pin 3, Pin 5: GND
Pin 6: Y
Pin 8: C
Bottom connector: RCA
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

INSTALLATIONS
14 MB770 User’s Manual
[[[[ 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
CN4: 10/100 RJ-45 and USB1/2 Ports
CN5: USB3/4 Ports
J6: Gigabit LAN RJ-45
CN7, CN9: Serial ATA Connectors
CN8: Line Out, Line In, Mic Connector
FAN1: CPU Fan Power Connector
FAN1 is a 3-pin header for the CPU fan. The fan must be a 12V fan.
Pin # Signal Name
1 Ground
2 +12V
3 Rotation detection
FAN2: System Fan Power Connector
FAN2 is a 3-pin header for system fans. The fan must be a 12V fan.
Pin # Signal Name
1 Ground
2 +12V
3 Rotation detection

INSTALLATIONS
MB770 User’s Manual 15
IDE1, IDE2: Primary and Secondary IDE Connectors
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
IDE1
Activity 39 40 Ground
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
IDE2 Vcc 41 42 Vcc
Ground 43 44 N.C.

INSTALLATIONS
16 MB770 User’s Manual
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
J2: Serial Ports
Pin # Signal Name (RS-232)
1 DCD, Data carrier detect
3 RXD, Receive data
5 TXD, Transmit data
7 DTR, Data terminal ready
9 Ground
2 DSR, Data set ready
4 RTS, Request to send
6 CTS, Clear to send
8 RI, Ring indicator
10 No Connect.