VIA Technologies VX800 Series User manual

TECHNICAL MANUAL
Of
VIA VX800
Based
Mini-ITX M/B For C7/Eden/Nano
Processor
NO.G03-NF76-F
Rev1.0
Release date: Jan., 2009
Trademark:
* Specifications and Information contained in this documentation are furnished for information use only, and are
subject to change at any time without notice, and should not be construed as a commitment by manufacturer.

Environmental Protection Announcement
Do not dispose this electronic device into the trash while discarding. To minimize pollution
and ensure environment protection of mother earth, please recycle.
ii

TABLE OF CONTENT
USER’S NOTICE .................................................................................................................................. iii
MANUAL REVISION INFORMATION............................................................................................ iii
ITEM CHECKLIST.............................................................................................................................. iii
CHAPTER 1 INTRODUCTION OF VIA CHIPSET MOTHERBOARD
1-1 FEATURE OF MOTHERBOARD..............................................................................……1
1-2 SPECIFICATION.................................................................................................................. 2
1-3 LAYOUT DIAGRAM & JUMPER SETTING................................................................... 3
CHAPTER 2 HARDWARE INSTALLATION
2-1 JUMPER SETTING..............................................................................................................7
2-2 CONNECTORS AND HEADERS ....................................................................................... 11
2-2-1 CONNECTORS....................................................................................................... 11
2-2-2 HEADERS ............................................................................................................... 12
CHAPTER 3
3-1 ENTERING SETUP…………………………………………………………………………21
3-2 GETTING HELP..…………………………………………………………………………...21
3-3 THE MAIN MENU…………………………………………………………………………..21
3-4 ADVANCED BIOS FEATURES.……………………………………………………………24
3-4-1 CPU FEATURE………………………………………………………………………………27
3-5 INTERGRATED PERIPHERALS…….................................................................................28
3-6 PC HEALTH STATUS………………………………………………………………………29
3-7 ADVANCED CHIPSET FEATURES……………………………………………………….30
3-8 POWER MANAGEMENT SETTING..………………………………………...…….……..31
3-9 PnP/PCI CONFIGURATION………………………………………………………………...32
3-10 MISCELLANEOUS CONFIGURATION …………………………………………….……33
iii

Safety Environmental Instruction
zAvoid the dusty, humidity and temperature extremes. Do not place the product in any
area where it may become wet.
z0 to 60 centigrade is the suitable temperature. (The figure comes from the request of the
main chipset)
zGenerally speaking, dramatic changes in temperature may lead to contact malfunction
and crackles due to constant thermal expansion and contraction from the welding spots’
that connect components and PCB. Computer should go through an adaptive phase
before it boots when it is moved from a cold environment to a warmer one to avoid
condensation phenomenon. These water drops attached on PCB or the surface of the
components can bring about phenomena as minor as computer instability resulted from
corrosion and oxidation from components and PCB or as major as short circuit that can
burn the components. Suggest starting the computer until the temperature goes up.
zThe increasing temperature of the capacitor may decrease the life of computer. Using the
close case may decrease the life of other device because the higher temperature in the
inner of the case.
zAttention to the heat sink when you over-clocking. The higher temperature may decrease
the life of the device and burned the capacitor.
iv

v
USER’S NOTICE
COPYRIGHT OF THIS MANUAL BELONGS TO THE MANUFACTURER. NO PART OF THIS MANUAL,
INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT MAY BE REPRODUCED,
TRANSMITTED OR TRANSLATED INTO ANY LANGUAGE IN ANY FORM OR BY ANY MEANS WITHOUT
WRITTEN PERMISSION OF THE MANUFACTURER.
THIS MANUAL CONTAINS ALL INFORMATION REQUIRED TO USE INTEL 945GM CHIPSET
MOTHER-BOARD SERIES AND WE DO ASSURE THIS MANUAL MEETS USER’S REQUIREMENT BUT WILL
CHANGE, CORRECT ANY TIME WITHOUT NOTICE. MANUFACTURER PROVIDES THIS MANUAL “AS IS”
WITHOUT WARRANTY OF ANY KIND, AND WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTIALORCONSEQUENTIAL DAMAGES (INCLUDING DAMANGES FOR LOSS OF PROFIT, LOSS OF
BUSINESS, LOSS OF USE OF DATA, INTERRUPTION OF BUSINESS AND THE LIKE).
PRODUCTS AND CORPORATE NAMES APPEARING IN THIS MANUAL MAY OR MAY NOT BE
REGISTERED TRADEMARKS OR COPYRIGHTS OF THEIR RESPECTIVE COMPANIES, AND THEY ARE
USED ONLY FOR IDENTIFICATION OR EXPLANATION AND TO THE OWNER’S BENEFIT, WITHOUT
INTENT TO INFRINGE.
Manual Revision Information
Reversion Revision History Date
1.0 First Edition January, 2009
Item Checklist
5Motherboard
5Cable(s)
5CD for motherboard utilities
5Motherboard User’s Manual
5Back panel

1
Chapter 1
Introduction of the Motherboard
1-1 Feature of motherboard
* VIA VX800 chipset.
*Onboard C7/Eden/Nano CPU, with low power consumption never denies high performance.
* Support FSB 800MHz.
*Support DDRII 400/533/667 up to 2GB.
*Onboard REALTEK RTL 8111C Gigabit Ethernet LAN.
* Integrated VIA 1708B 6-channel HD audio CODEC
* Support USB2.0 data transport demands.
* Support RS232/422/485 and watchdog.

2
1-2 Specification
Spec Description
Design ∗Mini ITX form factor 6 layers PCB size: 17.0x17.0cm
Chipset ∗VIA VX800 Chipset
Embedded CPU ∗C7 /Eden/Nano CPU
Memory Socket
∗240-pin DDRII DIMM socket x1
∗Support DDRII 400/533/667MHz system Modules DDR memory
∗Expandable to 2GB.
x
Expansion Slots ∗32-bit PCI slot x 1pcs
Integrate IDE ∗One PCI IDE controller that supports PCI Bus Mastering, ATA
PIO/DMA and the ULTRA DMA 133/100/66 functions that
deliver the data transfer rate up to 100 MB/s.
LAN
∗Integrated Realtek RTL8111C PCI-E LAN.
∗Support Fast Ethernet LAN function of providing
10Mb/100Mb/1000Mb Ethernet data transfer rate
Audio ∗VIA 1708B 6 channel Audio Codec integrated
∗Audio driver and utility included
BIOS ∗Award 8MB Flash ROM
Multi I/O ∗PS/2 keyboard and PS/2 mouse connectors
∗Hard disk drive connector x1
∗SATAII x2
∗SPDIF OUT header x1
∗IR header
∗USB2.0 port x 2 and headers x4
∗RJ45 LAN connector x1
∗Audio connectorx1 (Line-in, Line-out, MIC)
∗COM connector x 4

∗LVDS Connector x1
∗VGA Connector x1
∗DVP Connector x1
1-3 Layout Diagram & Jumper Setting
COM
Connector
RJ45 LAN
3
PS/2
Mouse
PS/2
Keyboard
MIC-IN
Line-Out
Line-In
VGA
Connector USB
Connector

4
ATX Power Connector C7/Eden/Nano
Keyboard/ USB Power (JP2)
PS2 KB/Mouse Port
VGA and COM
Connector JP8
CPU FAN
USB Port Connector SYS FAN1
DDRII Socket x1
COM Connector
RealtekRTL8111C
Gi
g
abit Lan
VIA 1708B
Audio Connector
VIA VX800
IDE Connecto
r
PCI Slot SYS FAN2
Front Panel Connector
CD Audio-In
Header
SPDIF OUT
Front Panel Audio
Power LED
Speaker connecto
r
IR Connector SATAII Connector (1,2)
COM Connector
USB Connector

5
Jumper
Jumper Name Description Page
JP2 KB/USB Power On Function Setting 3-pin Block P.7
JBAT CMOS RAM Clear Function Setting 3-pin Block P.7
JP3 USB Power On Function Setting 3-pin Block P.8
JP4 LVDS5V/3.3V Select 3-pin Block P.8
JP8 Power RS232 Function Select 6-pin Block P.9
JP5 LVDS Inverter Power On Setting 3-pin Block P.9
JP9 Power RS232 Function Select 6-pin Block P.10
JP10 Power RS232/422/485 Function Select 6-pin Block P.10
Connectors
Connector Name Description Page
USB1,USB2 USB Port Connector 4-pin Connector P.11
UL2 RJ45 LAN Connector RJ-45 Connector P.11
VGA Video Graphic Attach Connector D-sub15-pin Female P.11
AUDIO1 Line-Out /MIC/Line-In Audio Connector 3 Phone Jack P.11
COM1 Serial Port COM1 Connector 9-pin Connector P.11

6
HeadersHeader Name Description Page
SYSFAN1, SYSFAN2 FAN Speed Headers 3-pin Block P.18
AUDIO2 Front panel audio Headers 9-pin block P.12
IR IR infrared module Headers 5-pin Block P.17
CDIN CD Audio-In Header 4-pin Block P.12
PWR LED Power LED 4-pin Block P.17
LVDS LVDS Connector 32-pin Block P.13
Inverter LVDS Inverter Connector 7-pin Block P.14
COM2,3,4 Serial Port COM1 Connector 9-pin Connector p.18
JW_FP
(PWR LED/ HD LED/ /Power
Button /Reset)
Front Panel Header
(PWR LED/ HD LED/ /Power Button
/Reset)
9-pin Block P.17
ATXPWR ATX Power Connector 24-pin Block p.10
SATA1~2 Serial ATAII IDE Connector 7-pin Connector p.11

Chapter 2
2-1 Jumper Setting
(1) JP2: KB/USB Power On Function Setting
2-3 K.B& USB POWER-ON Enabled
JP2 JP2
1-2 K.B&USB POWER-ON Disacled
13 1 3
(2) Clear CMOS (3-pin): JBAT
CMOS RAM Clear Setting
2-3 closed Clear CMOS
JBAT JBAT
1-2 closed Normal
1
3
1
3
7

(3) JP3: USB Power On Function Setting (3-pin)
1-2 closed USB Power On Disabled
2-3 closed USB Power On Enabled
JP3
JP3
1
3
1
3
(4) JP4: LVDS 5V/3.3V Function setting (3-pin)
8
2-3 closed : PVDD= 3.3V
JP4
JP4 1
3
1-2 closed: PVDD=
1
3
5V

(5) JP5: LVDS Inverter Function setting (3-pin)
9
(6) JP8: COM1 Pin 9 select
LVDS Function Setting
2-3 closed : LCD powered by 3.3V
JP5
JP8
1-2 closed: R 3-4 closed : +12V
1
S232
1
5-6 closed : +5V
1
1
3
JP5 1
3
1-2 closed: LCD Powered by 5V

(7) JP9:COM2 Pin9 select
JP9
1-2 closed:
3-4 closed : +12V
1
RS232
11
5-6 closed : +5V
(8) JP10: RS232/422/485 Function Select
JP10
1-2 closed: R
10
3-4 closed : RS485
1
S232
1
5-6 closed : RS422
1

2-2 Connectors and Headers
2-2-1 Connectors
(1) Audio Connector: (Line-IN/ Line-Out/ MIC-In)
11
(2) Serial-ATA Port connector: SATA1/SATA2
Serial-ATA Connectors
SATA2
SATA1
MIC-IN
RJ45 LAN
PS/2
Mouse Line-Out
Line-In
USB
Connector
PS/2
Keyboard
VGA
Connector
COM
Connector

2-2-2 Headers
(1) Front panel audio (9-pin): AUDIO2
12
Line-Out, MIC Headers
A
UDIO
Pin 1
MIC2-L
LINEOUT2-L
MIC2-R
LINEOUUT2-R
SENSE-FB
AUD
_
GND
Line2-JD MIC2-JD AUD
_
JD
2
9
10
(2) CD AUDIO-In Headers (4-pin): CDIN
CD Audio-In Headers
CDIN
GND
4 1
CD-R CD-LGND

13
(3) LVDS Headers: LVDS
Pin NO. Pin Define Pin NO. Pin Define
Pin 1 -LCD7 Pin 2 LCD7
Pin 3 -LCLK2 Pin 4 LCLK2
Pin 5 -LCD6 Pin 6 LCD6
Pin 7 -LCD5 Pin 8 LCD5
Pin 9 -LCD4 Pin 10 LCD4
Pin 11 GND Pin 12 GND
Pin 13 GND Pin 14 GND
Pin 15 GND Pin 16 GND
Pin 17 LCD3 Pin 18 -LCD3
Pin 19 LCLK1 Pin 20 -LCLK1
Pin 21 LCD2 Pin 22 -LCD2
Pin 23 LCD1 Pin 24 -LCD1
Pin 25 LCD0 Pin 26 -LCD0
Pin 27 PVDD Pin 28 PVDD
Pin 29 PVDD Pin 30 PVDD
Pin 31 GND Pin 32 GND

14
Pin 1
LVDS Header
Pin 2
LVDS
(4) Pin-headers of LVDS Inverter:
Pin 1 and pin2: VCC of inverter
Pin3、pin4 and pin6: GND
Pin5: Backlight
Pin7: Brightness
VI
Pin 1
GN
Brightness
Backlight
GND
VI
GN

(5) JWDB Header:
15
CN1
Pin NO. Pin Define Pin NO. Pin Define
Pin 1 GND Pin 2 GND
Pin 3 PCICLK2 Pin 4 -IRDY
Pin 5 -INTR_A Pin 6 +3.3V
Pin 7 -INTR_D Pin 8 -DEVSEL
Pin 9 -12V Pin 10 -PERR
Pin 11 LPC_24_48M Pin 12 -PERR
Pin 13 PCICLK3 Pin 14 +3.3v
Pin 15 PCICLK1 Pin 16 -SERR
Pin 17 GND Pin 18 +3.3v
Pin 19 -REQ1 Pin 20 C_-BE1
Pin 21 -REQ2 Pin 22 A_D14
Pin 23 A_D31 Pin 24 GND
Pin 25 A_D29 Pin 26 A_D12
Pin 27 GND Pin 28 A_D10
Pin 29 A_D27 Pin 30 GND
Pin 31 A_D25 Pin 32 A_D8