No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or
translated into any language, in any form or by any means, electronic, mechanical, magnetic, optical,
chemical, manual or otherwise without the prior written permission of VIA Technologies, Incorporated.
Trademarks
Trademarks
TrademarksTrademarks
All trademarks are the property of their respective holders. PS/2 is a registered trademark of IBM
Corporation.
Disclaimer
Disclaimer
DisclaimerDisclaimer
No license is granted, implied or otherwise, under any patent or patent rights of VIA Technologies. VIA
Technologies makes no warranties, implied or otherwise, in regard to this document and to the products
described in this document. The information provided in this document is believed to be accurate and
reliable as of the publication date of this document. However, VIA Technologies assumes no responsibility
for the use or misuse of the information in this document and for any patent infringements that may arise
from the use of this document. The information and product specifications within this document are subject
to change at any time, without notice and without obligation to notify any person of such change.
FCC
FCC----B Radio Frequency Interference Statement
B Radio Frequency Interference Statement
FCCFCC
B Radio Frequency Interference StatementB Radio Frequency Interference Statement
This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to
part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case the user will be required to correct the
interference at his personal expense.
Notice 1
Notice 1
Notice 1Notice 1
The changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
Notice 2
Notice 2
Notice 2Notice 2
Shielded interface cables and A.C. power cord, if any, must be used in order to comply with the emission
limits.
Tested To Comply
With FCC Standards
FOR HOME OR OFFICE USE
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SSSS
AFETY
AFETY
IIII
NSTRUCTIONS
AFETY AFETY
NSTRUCTIONS
NSTRUCTIONSNSTRUCTIONS
Always read the safety instructions carefully.
Keep this User's Manual for future reference.
Keep this equipment away from humidity.
Lay this equipment on a reliable flat surface before setting it up.
The openings on the enclosure are for air convection hence protects the
equipment from overheating. Do not cover the openings.
Make sure the voltage of the power source and adjust properly 110/220V
before connecting the equipment to the power inlet.
Place the power cord in such a way that people cannot step on it. Do not
place anything over the power cord.
Always unplug the power cord before inserting any add-on card or module.
All cautions and warnings on the equipment should be noted.
Never pour any liquid into the opening. Liquid can cause damage or
electrical shock.
If any of the following situations arises, get the equipment checked by a
service personnel:
The power cord or plug is damaged.
Liquid has penetrated into the equipment.
The equipment has been exposed to moisture.
The equipment has not worked well or you cannot get it work
according to User's Manual.
The equipment has dropped and damaged.
If the equipment has obvious sign of breakage.
Do not leave this equipment in an environment unconditioned or in a
storage temperature above 60oC (140oF). The equipment may be damaged.
Caution:
Caution:
Caution:Caution:
Only use the appropriate battery specified for this product.
Do not reuse, recharge, or reheat an old battery.
Do not attempt to force open the battery.
Do not discard used batteries with regular trash.
Discard used batteries according to local regulations.
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TTTT
ABLE OF
ABLE OF
ABLE OF ABLE OF
Safety Instructions ........................................................................................................... iii
Table of Contents............................................................................................................. iv
Getting Started ..................................................................................................... 68
Running the Driver Utilities CD...................................................................... 69
CD Content ..................................................................................................................70
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S
PECIFICATIONS
The compact and highly integrated VIA NAS 7800 mainboard comes
with an integrated VIA C7® NanoBGA2 processor, boasting of ultra-low
power consumption and cool operation.
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Mainboard Specifications
Mainboard Specifications
Mainboard SpecificationsMainboard Specifications
CPU
CPU
CPUCPU
•VIA C7
Chipset
Chipset
ChipsetChipset
• VIA CN700 North Bridge
• VIA VT8251 South Bridge
Graphics
Graphics
GraphicsGraphics
•Integrated VIA UniChrome™ Pro Integrated Graphics with
•Award BIOS with LPC 4/8Mbit flash memory capacity
Form Factor
Form Factor
Form FactorForm Factor
•17cm X 14.3cm
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Mainboard Layout
Mainboard Layout
Mainboard LayoutMainboard Layout
Mini PCI
SYS_FAN
KB/MS
BIOS
LANandUSBportsLAN and USB ports
C_OPEN1
Optional Four-pin 12V
DC Connector
ATX Power
VIA C7 1.5GHz
NanoBGA2 Processor
DDR2 DIMM
USB_2
WP1
LAN_LED
COM1
DIO
CPU_FAN
COM2
J2
MFX
F_Panel
CLEAR_CMOS1
BAT2
SATA ports
IDESATA_LED
VGA
VIA CN700
North Bridge
VIA VT8251
South Bridge
J1
CF slot
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Back Panel Layout
Back Panel Layout
Back Panel LayoutBack Panel Layout
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I
NSTALLATION
This chapter provides you with information about hardware installation
procedures. It is recommended to use a grounded wrist strap before
handling computer components. Electrostatic discharge (ESD) can
damage some components.
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CPU
CPU
CPUCPU
The VIA NAS 7800 mainboard is packaged with a standard VIA C7®
1.5GHz NanoBGA2 processor. Other processor speeds are also available
as manufacturing options. The VIA C7® 1.5GHz processor requires a
heatsink with fan to provide sufficient cooling.
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CPU_FAN
CPU_FANCPU_FAN
CPU_FAN
SYS_FAN
SYS_FANSYS_FAN
SYS_FAN
CPU Fan and System Fan: CPUFAN and SYSFAN
The CPU_FAN (CPU fan) and SYS_FAN (system fan) run on +12V and
maintain system cooling. When connecting the wire to the connectors,
always be aware that the red wire (positive wire) should be connected to
the +12V. The black wire is Ground and should always be connected to
GND.
The VIA NAS 7800 mainboard provide one 240-DIMM slots for DDR2
667/533/400 SDRAM memory modules and supports memory sizes up
to 1GB.
DDR2 SDRAM Module Installation Procedures
• Locate the DIMM slot in the motherboard.
• Unlock a DIMM slot by pressing the retaining clips outward.
• Align a DIMM on the socket such that the notch on the DIMM
matches the break on the slot.
•Firmly insert the DIMM into the slot until the retaining clips
snap back in place and the DIMM is properly seated.
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Available DDR2 SDRAM Configurations
Refer to the table below for available DDR2 SDRAM configurations on
the mainboard.
Slot
Slot Module Size
SlotSlot
DIMM1 64MB, 128MB, 256MB, 512MB, 1GB 64MB-1GB
Maximum supported system memory 64MB-1GB
Module Size Total
Module SizeModule Size
Note:
Note:
Note:Note:
Only supports 1GB SDRAM with 64M x 8bits x16 configuration.
Total
TotalTotal
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Connecting the Power Supply
Connecting the Power Supply
Connecting the Power SupplyConnecting the Power Supply
The VIA NAS 7800 mainboard supports a conventional ATX power
supply for the power system. Before inserting the power supply
connector, always make sure that all components are installed correctly
to ensure that no damage will be caused.
ATX 20-Pin Power Connector
To connect the power supply, make sure the power plug is inserted in
the proper orientation and the pins are aligned. Then push down the
plug firmly into the connector.
Four standard USB 2.0 ports are provided on the back panel.
Gigabit LAN Ports
The mainboard provides one PCI Express Gigabit Ethernet ports
controlled with separate VIA VT6130 PCIe Gigabit Ethernet controllers
and one more PCI Gigabit Ethernet port (available for NAS 7800-15LST)
controlled by a VIA VT6122 Gigabit Ethernet controller.
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SATA1
SATA1SATA1
SATA1
SATA2
SATA2SATA2
SATA2
SATA3
SATA3SATA3
SATA3
SATA4
SATA4SATA4
SATA4
SATA5
SATA5SATA5
SATA5
SATA6
SATA6SATA6
SATA6
SATA7
SATA7SATA7
SATA7
SATA8
SATA8SATA8
SATA8
Connectors
Connectors
ConnectorsConnectors
VGA Connector: VGA
This is an interface for connecting the included VGA pin connector cable.
Pin
Pin Signal
Signal Pin
PinPin
SignalSignal
Pin Signal
Signal
PinPin
SignalSignal
1 GND 2 VCC
3 R 4 SPD2
5 G 6 SPCLK2
7 B 8 HSYNC
9 GND 10 VSYNC
11 GND 12 GND
13 GND 14 KEY
SATA II Connectors: SATA1 up to SATA8
These next generation connectors support the thin SATA cables for
primary internal storage devices. The current SATA interface allows up to
300MB/s data transfer rate, faster than the standard parallel ATA with
133 MB/s (Ultra DMA).
Note:
Note:
Note:Note:
SATA1 to SATA4 connectors are controlled by the South Bridge
VT8251, while SATA5 to SATA8 connectors are controlled by external
SATA controller Marvell 88SE6145 chip.
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IDE Connector: IDE
The mainboard has an Ultra DMA 133/100/66 controller. You can
connect up to two IDE devices in any combination.
If two drives are connected to a single cable, the jumper on the second
drive must be set to slave mode. Refer to the drive documentation
supplied by the vendor for the jumper settings.
Pin Signal
Signal
PinPin
SignalSignal
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USB Pin Connector: USB_2
The mainboard provide one 12-pin USB pin connector (allowing up to
two additional USB 2.0 ports). Therefore mainboard can support up to
six USB 2.0 ports. These ports can be used to connect high-speed USB
interface peripherals such as USB HDD, digital cameras, MP3 players,
printers, modem and the like.
This pin connector is for MFX add-on cards. This pin header also allows
you to connect SMBus (System Management Bus) devices (using pins 4,
6, and 8). Such devices communicate with a SMBus host and/or other
SMBus devices using the SMBus interface.
The mainboard provides jumpers for setting some mainboard functions.
This section will explain how to change the settings of the mainboard
functions using the jumpers.
Clear CMOS Connector: CLEAR_CMOS
The onboard CMOS RAM stores system configuration data and has an
onboard battery power supply. To reset the CMOS settings, set the
jumper on pins 1 and 2 while the system is off. Return the jumper to
pins 2 and 3 afterwards. Setting the jumper while the system is on will
damage the mainboard.
Setting
Setting 1111 2222 3333
SettingSetting
Normal Operation ON ON OFF
Clear CMOS setting OFF ON ON
Caution:
Caution:
Caution:Caution:
Except when clearing the RTC RAM, never remove the cap on
CLEAR_CMOS jumper default position. Removing the cap will cause
system boot failure. Avoid clearing the CMOS while the system is on;
it will damage the mainboard.
CF Mode Selector: J1
J1 is the working mode selector for CF Type I connector.
Short = Master, Open = Slave.
Setting
Setting 1111 2222
SettingSetting
Master ON ON
Slave OFF OFF
COM1 Power Selector: J2
J2 is a VCC selector jumper to determine the input voltage for COM1
connector.
Setting
Setting 1111 2222 3333
SettingSetting
+5V ON ON OFF
+12V OFF ON ON
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Disable
DisableDisable
Disable
Enable
EnableEnable
Enable
Disable
DisableDisable
Disable
Enable
EnableEnable
Enable
BIOS Write Protect: WP1
This jumper enables or disables the Write Protect function for the BIOS.
Settin
Settingggg 1111 2222
SettinSettin
Write Protect Enable (Default) ON ON
Write Protect Disable OFF OFF
C_OPEN (Case Open)
This jumper controls the detection when the case is opened.
Setting
Setting 1111 2222
SettingSetting
Case Opened (Enable) ON ON
Disable OFF OFF
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Slots
Slots
SlotsSlots
Mini Peripheral Component Interconnect: MiniPCI
The MiniPCI slot allows you to insert a MiniPCI expansion card. First
unplug the power supply before adding or removing expansion cards.
Read the documentation for the expansion card to see if any changes to
the system are necessary.
PCI Interrupt Request Routing
The IRQ (interrupt request line) are hardware lines over which devices
can send interrupt signals to the microprocessor. The “PCI & LAN” IRQ
pins are typically connected to the PCI bus INT A# ~ INT D# pins as
follows:
Order 1
MiniPCI Slot INT B# INT C# INT D# INT A#
Order 1 Order 2
Order 1Order 1
Order 2 Order 3
Order 2Order 2
Order 3 Order 4
Order 3Order 3
Order 4
Order 4Order 4
Compact Flash Type I Connector: CF
This CF connector allows you to connect to a passive 50-pin Type I
adapter.
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BIOS S
This chapter gives a detailed explanation of the BIOS setup functions.
ETUP
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Entering
Entering the BIOS
Entering Entering
the BIOS Setup
the BIOS the BIOS
Setup Menu
SetupSetup
Menu
Menu Menu
Power on the computer and press <Delete
boot sequence to enter the BIOS setup menu. If you missed the BIOS
setup entry point, restart the system and try again.
Delete> during the beginning of the
DeleteDelete
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Control Keys
Control Keys
Control KeysControl Keys
Keys
Keys Description
KeysKeys
Enter
Esc
Page
Up
Page
Down
Description
DescriptionDescription
Move to the previous item
Move to the next item
Move to the item in the left side
Move to the item in the right side
Select the item
Jumps to the Exit menu or returns to the
main menu from a submenu
Increase the numeric value or make changes
Decrease the numeric value or make changes
Increase the numeric value or make changes
F1
F5
F6
F7
F10
Decrease the numeric value or make changes
General help, only for Status Page Setup
Menu and Option Page Setup Menu
Restore the previous CMOS value from
CMOS, only for Option Page Setup Menu
Load the default CMOS value from Fail-Safe
default table, only for Option Page Setup
Menu
Load Optimized defaults
Save all the CMOS changes and exit
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Navigating the BIOS Menus
Navigating the BIOS Menus
Navigating the BIOS MenusNavigating the BIOS Menus
The main menu displays all the BIOS setup categories. Use the
<Left
Left>/<Right
LeftLeft
Right> and <Up
RightRight
Up>/<Down
UpUp
Down> arrow keys to select any item or
DownDown
sub-menu. Descriptions of the selected/highlighted category are
displayed at the bottom of the screen.
An arrow symbol next to a field indicates that a sub-menu is available
(see figure below). Press <Enter
sub-menu, press <Esc
Esc>.
EscEsc
Enter> to display the sub-menu. To exit the
EnterEnter
Phoenix- Awa rdBIOSCMOSSe tupUtility
StandardCMOS Features
AdvancedBIOS Features
AdvancedChips etFeatures
IntegratedPer ipherals
SecurityChip Configuration
PowerManageme ntSetup
PnP/PCIConfig urations
Esc:Quit
F10:Save& ExitSetup
Frequency/Vo ltageControl
LoadFail-Safe Defaults
LoadOptimized Defaults
SetSupervisor Password
SetUserPassw ord
Save&ExitSe tup
ExitWithoutS aving
Time,Date,Ha rdDiskType.. .
:SelectIt em
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Getting Help
Getting Help
Getting HelpGetting Help
The BIOS setup program provides a “General Help
display this screen from any menu/sub-menu by pressing <F1
help screen displays the keys for using and navigating the BIOS setup.
Press <Esc
Esc> to exit the help screen.
EscEsc
General Help” screen. You can
General HelpGeneral Help
F1>. The
F1F1
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Main Menu
Main Menu
Main MenuMain Menu
The Main Menu contains twelve setup functions and two exit choices.
Use arrow keys to select the items and press <Enter
Sub-menu.
Enter> to accept or enter
EnterEnter
Standard CMOS Features
Use this menu to set basic system configurations.
Advanced BIOS Features
Use this menu to set the advanced features available on your system.
Advanced Chipset Features
Use this menu to set chipset specific features and optimize system
performance.
Integrated Peripherals
Use this menu to set onboard peripherals features.
Security Chip Configuration
Use this menu to configure the TPM security features.
Power Management Setup
Use this menu to set onboard power management functions.
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PnP/PCI Configurations
Use this menu to set the PnP and PCI configurations.
Frequency/Voltage Control
Use this menu to set the system frequency and voltage control.
Load Fail-Safe Defaults
Use this menu option to load the BIOS default settings for minimal and
stable system operations.
Load Optimized Defaults
Use this menu option to load BIOS default settings for optimal and high
performance system operations.
Set Supervisor Password
Use this menu option to set the BIOS supervisor password.
Set User Password
Use this menu option to set the BIOS user password.
Save & Exit Setup
Save BIOS setting changes and exit setup.
Exit Without Saving
Discard all BIOS setting changes and exit setup.
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Standard CMOS Features
Standard CMOS Features
Standard CMOS FeaturesStandard CMOS Features
Date
The date format is [Day, Month Date, Year]
Time
The time format is [Hour : Minute : Second]
Video
Settings: [EGA/VGA, CGA 40, CGA 80, MONO]
Halt On
Set the system’s response to specific boot errors. Below is a table that
details the possible settings.
Settings
Settings Description
SettingsSettings
All Errors System halts when any error is detected
No Errors System does not halt for any error
All, But Keyboard System halts for all non-key errors
Description
DescriptionDescription
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IDE Drives
IDE Drives
IDE DrivesIDE Drives
IDE Channel 0 Master
IDE Channel 0 Slave
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The specifications of your drive must match with the drive table. The
hard disk will not work properly if you enter incorrect information in this
category. Select “Auto
Auto” whenever possible. If you select “Manual
AutoAuto
Manual”,
ManualManual
make sure the information is from your hard disk vendor or system
manufacturer.
Below is a table that details required hard drive information when using
the “Manual
Manual” mode.
ManualManual
Settings
Settings Description
SettingsSettings
IDE Channel The name of this match the name of the menu.
Access Mode Settings: [CHS, LBA, Large, Auto]
Capacity Formatted size of the storage device
Cylinder Number of cylinders
Head Number of heads
Precomp Write precompensation
Landing Zone Cylinder location of the landing zone
Sector Number of sectors
Description
DescriptionDescription
Settings: [None, Auto, Manual]
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Advanced BIOS Features
Advanced BIOS Features
Advanced BIOS FeaturesAdvanced BIOS Features
Virus Warning
Allows you to choose the VIRUS warning feature for IDE Hard Disk boot
sector protection.
Settings
Settings Description
SettingsSettings
Enabled Turns on hard disk boot sector virus protection
Disabled Turns off hard disk boot sector virus protection
Note:
Note:
Note:Note:
If this function is enabled and someone attempt to write data into
this area, BIOS will show a warning message on the screen and alarm
beep.
Description
DescriptionDescription
CPU L1 & L2 Cache
Settings
Settings Description
SettingsSettings
Disabled Turns off CPU L1 & L2 cache
Enabled Turns on CPU L1 & L2 cache
Description
DescriptionDescription
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CPU L2 Cache ECC Checking
Settings: [Enabled, Disabled]
Quick Power On Self-Test
Shortens Power On Self-Test (POST) cycle to enable shorter boot up
time.
Settings
Settings Description
SettingsSettings
Disabled Standard Power On Self Test (POST)
Enabled Shorten Power On Self Test (POST) cycle and boot up time
Description
DescriptionDescription
First/Second/Third Boot Device
Set the boot device sequence as BIOS attempts to load the disk operating
system.
Settings
Settings Description
SettingsSettings
LS120 Boot from LS-120 drive
Hard Disk Boot from the HDD
CDROM Boot from CDROM
ZIP100 Boot from ATAPI ZIP drive
USB-FDD Boot from USB floppy drive
USB-ZIP Boot from USB ZIP drive
USB-CDROM Boot from USB CDROM
Legacy LAN Boot from network drive
VIA Networking Boot from network drive
Disabled Disable the boot device sequence
Description
DescriptionDescription
Boot Other Device
Enables the system to boot from alternate devices if the system fails to boot
from the “First/Second/Third Boot Device” lists.
Set the NumLock status when the system is powered on.
Settings
Settings Description
SettingsSettings
Off Forces keypad to behave as arrow keys
On Forces keypad to behave as 10-key
Description
DescriptionDescription
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Typematic Rate Setting
Enables “Typematic Rate” and “Typematic Delay” functions.
Settings: [Disabled, Enabled]
Typematic Rate (Chars/Sec)
This item sets the rate (characters/second) at which the system retrieves
a signal from a depressed key.
Settings: [6, 8, 10, 12, 15, 20, 24, 30]
Typematic Delay (Msec)
This item sets the delay between, when the key was first pressed and
when the system begins to repeat the signal from the depressed key.
Settings: [250, 500, 750, 1000]
Security Option
Selects whether the password is required every time the System boots,
or only when you enter Setup.
Settings
Settings Description
SettingsSettings
Setup Password prompt appears only when end users try to run
System Password prompt appears every time when the computer is
Description
DescriptionDescription
BIOS Setup
powered on and when end users try to run BIOS Setup
MPS Version Control for OS
Settings: [1.1, 1.4]
OS Select for DRAM > 64MB
Select OS2 only if you are running OS/2 operating system with greater
than 64MB of RAM on the system.
Settings: [Non-OS2, OS2]
Console Redirection
Settings
Settings Description
SettingsSettings
Disabled Attempt to redirect console via COM port
Enabled Attempt to redirect console when keyboard absent
Description
DescriptionDescription
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Baud Rate
Specify Baud Rate of console redirection
Settings: [9600, 19200, 38400, 57600, 115200]
Agent Connect via
Setting: NULL
Agent Wait Time (Min)
Timeout for connection.
Settings: [1, 2, 4, 8]
Agent after Boot
Keeps Agent running after OS boot.
Settings: [Disabled, Enabled]
Video BIOS Shadow
Enabled copies Video BIOS to shadow RAM Improves performance.
Settings: [Disabled, Enabled]
Full Screen Logo Show
Show full screen logo during BIOS boot up process.
Settings: [Disabled, Enabled]
Summary Screen Show
Show summary screen.
Settings: [Disabled, Enabled]
Flash ROM Write Protect
Settings: [Disabled, Enabled]
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CPU Features
CPU Features
CPU FeaturesCPU Features
Delay Prior to Thermal
Settings: [4 Min, 8 Min, 16 Min, 32 Min]
Thermal Management
This item sets CPU’s thermal control rule to protect CPU from overheat.
Settings
Settings Description
SettingsSettings
Thermal Monitor 1 On-die throtting
Thermal Monitor 2 Ratio & VID transition
Description
DescriptionDescription
C7 CMPXCHG8
Disable to install Windows NT 4.0.
Settings: [Disabled, Enabled]
C7 NoExecute (NX)
NoExecute is supported in WinXP SP2 and provides some protection
from virii.
Settings: [Disabled, Enabled]
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Hard Disk Boot Priority
Hard Disk Boot Priority
Hard Disk Boot PriorityHard Disk Boot Priority
This is for setting the priority of the hard disk boot order when the
“Hard Disk” option is selected in the “[First/Second/Third] Boot Device”
menu item.
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Advanced Chipset Features
Advanced Chipset Features
Advanced Chipset FeaturesAdvanced Chipset Features
Caution:
Caution:
Caution:Caution:
The Advanced Chipset Features menu is used for optimizing the
chipset functions. Do not change these settings unless you are
familiar with the chipset.
Memory Hole
Settings: [Disabled, 15M – 16M]
System BIOS Cacheable
Settings: [Disabled, Enabled]
Video RAM Cacheable
Settings: [Disabled, Enabled]
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AGP & P2P Bridge Control
AGP & P2P Bridge Control
AGP & P2P Bridge ControlAGP & P2P Bridge Control
AGP Aperture Size
This setting controls how much memory space can be allocated to AGP
for video purposes. The aperture is a portion of the PCI memory
address range dedicated to graphics memory address space. Host
cycles that hit the aperture range are forwarded to the AGP without any
translation.
Settings: [32MB, 64MB, 128MB, 256MB, 512MB, 1GB]
AGP3.0 Mode
This mainboard supports the AGP 8x interface. When the AGP 8x video
card is used, it can transfer video data at 2133MB/s. AGP 8x is backward
compatible, leave the default 4x mode on. AGP 4x mode can be
detected automatically once you plug in the AGP 4x card.
Settings: [8x, 4x]
AGP Driving Control
This item is used to signal driving current on AGP cards to auto or
manual.
Settings: [Auto, Manual]
AGP Driving Value
Key in a HEX number.
Settings: [Min = 0000, Max = 00FF]
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AGP Fast Write
This item is used to enable or disable the caching of display data for the
video memory of the processor.
Settings: [Disabled, Enabled]
AGP Master 1 WS Write
Settings: [Disabled, Enabled]
AGP Master 1 WS Read
Settings: [Disabled, Enabled]
AGP 3.0 Calibration Cycle
Settings: [Disabled, Enabled]
VGA Share Memory Size
This setting allows you to select the amount of system memory that is
allocated to the integrated graphics processor.
Settings: [Disabled, 16M, 32M, 64M]
Direct Frame Buffer
Settings: [Disabled, Enabled]
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CPU & PCI Bus Control
CPU & PCI Bus Control
CPU & PCI Bus ControlCPU & PCI Bus Control
PCI Master 0 WS Write
Settings: [Enabled, Disabled]
PCI Delay Transaction
Settings: [Disabled, Enabled]
VLink Mode Selection
Settings: [By Auto, Mode 0, Mode 1]
VLink 8X Support
Settings: [Disabled, Enabled]
DRDY Timing
Settings: [Slowest, Default, Optimize]
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Integrated Peripherals
Integrated Peripherals
Integrated PeripheralsIntegrated Peripherals
This menu includes three sub-menu.
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VIA OnChip IDE Device
VIA OnChip IDE Device
VIA OnChip IDE DeviceVIA OnChip IDE Device
CF Card UDMA66
To support UDMA66 CF Card
Settings: [Disabled, Enabled]
SATA Controller
Settings: [Disabled, Enabled]
SATA Controller Mode
Controls the features of the SATA controller within the South Bridge.
SATA is the latest generation of the ATA interface. SATA hard drives
deliver transfer speeds of up to 300MB/sec.
Settings
Settings Description
SettingsSettings
IDE Supports two PATA hard disk drives. Disables RAID
RAID Only SATA supports RAID and AHCI function
AHCI Enable the AHCI function such as Native Command
This allows the hard disk controller to use the fast block mode to
transfer data to and from the hard disk drive. Block mode is also called
block transfer, multiple commands or multiple sector read / write.
Settings
Settings Description
SettingsSettings
Disabled Standard Mode
Enabled Block Mode
Enables the ACPI (Advanced Configuration and Power Management
Interface) functionality.
Settings: [Enabled, Disabled]
NNNNote:
ote:
ote:ote:
ACPI is a power management specification that makes hardware
status information available to the operating system. ACPI enables a
PC to turn its peripherals on and off for improved power
management. It also allows the PC to be turned on and off by
external devices, so that mouse or keyboard activity wakes up the
computer.
ACPI Suspend Type
Settings
Settings Description
SettingsSettings
S1(POS) S1/Power On Suspend (POS) is a low power state. In this
S3(STR) S3/Suspend To RAM (STR) is a power-down state. In this
S1 & S3 Depends on the OS to select S1 or S3.
Description
DescriptionDescription
state, no system context (CPU or chipset) is lost and
hardware maintains all system contexts.
state, power is supplied only to essential components such
as main memory and wakeup-capable devices. The system
context is saved to main memory, and context is restored
from the memory when a "wakeup" event occurs.
This field configures the power button on the chassis.
Settings
Settings Description
SettingsSettings
Delay 4 Sec System is turned off if power button is pressed for more
Instant-Off Power button functions as a normal power-on/-off button.
Description
DescriptionDescription
than four seconds.
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Run VGABIOS if S3 Resume
Select whether to run VGA BIOS if resuming from S3 state. This is only
necessary for older VGA drivers.
Settings: [Auto, Yes, No]
AC Loss Auto Restart
The field defines how the system will respond after an AC power loss
during system operation.
Settings
Settings De
SettingsSettings
Off Keeps the system in an off state until the power button is pressed
On Restarts the system when the power is back
Former-Sts Former-Sts
Description
scription
DeDe
scriptionscription
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Wakeup Event Detect
Wakeup Event Detect
Wakeup Event DetectWakeup Event Detect
PS2KB Wakeup Select
When selecting “Password”, press <Page Up> or <Page Down> to
change password. The maximum number of characters is eight. “PS2MS
Wakeup from S3/S4/S5” and “PS2KB Wakeup from S3/S4/S5” will be
disabled while changing the password.
Settings: [Hot Key, Password]
PS2KB Wakeup Key Select
Sets a Hot Key to restore the system from the power saving mode to an
active state.
Settings: [Ctrl+F1, Ctrl+F2, Ctrl+F3, Ctrl+F4, Ctrl+F5, Ctrl+F6, Ctrl+F7,
Ctrl+F8, Ctrl+F9, Ctrl+F10, Ctrl+F11, Ctrl+F12, Power, Wake, Any Key]
PS2MS Wakeup Key Select
Enables any mouse activity to restore the system from the power saving
mode to an active state.
Settings: [Any Button, Left Button, Right Button]
PS2 Keyboard Power On
Settings: [Disabled, Enabled]
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PS2 Mouse Power On
Settings: [Disabled, Enabled]
USB Resume from S3
Settings: [Disabled, Enabled]
Wake Up On GPI
Settings: [Disabled, Enabled]
PowerOn by PCI Card
Enables activity detected from any PCI card to power up the system or
resume from a suspended state. Such PCI cards include LAN, onboard
USB ports, etc.
Settings: [By OS, Enabled]
RTC Alarm Resume
Set a scheduled time and/or date to automatically power on the system.
Settings: [Disabled, Enabled]
Date (of Month)
The field specifies the date for “RTC Alarm Resume”.
Resume Time (hh : mm : ss)
The field specifies the time for “RTC Alarm Resume”.
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PnP/PCI Configurations
PnP/PCI Configurations
PnP/PCI ConfigurationsPnP/PCI Configurations
Note:
Note:
Note:Note:
This section covers some very technical items and it is strongly
recommended to leave the default settings as is unless you are an
experienced user.
PNP OS Installed
Settings
Settings Description
SettingsSettings
No BIOS will initialize all the PnP cards
Yes BIOS will only initialize the PnP cards used for booting
Description
DescriptionDescription
(VGA, IDE, SCSI). The rest of the cards will be initialized
by the PnP operating system
Reset Configuration Data
Settings
Settings Description
SettingsSettings
Disabled Default setting
Enabled Resets the ESCD (Extended System Configuration Data)
Description
DescriptionDescription
after exiting BIOS Setup if a newly installed PCI card or the
system configuration prevents the operating system from
loading
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Resources Controlled By
Enable the BIOS to automatically configure all the Plug-and-Play
compatible devices.
Settings
Settings Description
SettingsSettings
Auto(ESCD) BIOS will automatically assign IRQ, DMA and memory base
Manual Unlocks “IRQ Resources” for manual configuration
Description
DescriptionDescription
address fields
PCI/VGA Palette Snoop
Some non-standard VGA display cards may not show colors properly. This
field allows you to set whether MPEG ISA/VESA VGA Cards can work with
PCI/VGA or not. When enabled, a PCI/VGA can work with a MPEG
ISA/VESA VGA card. When disabled, a PCI/VGA cannot work with a MPEG
ISA/VESA Card.
Settings: [Disabled, Enabled]
Assign IRQ for VGA
Assign IRQ for VGA devices.
Settings: [Disabled, Enabled]
Assign IRQ for USB
Assign IRQ for USB devices.
Settings: [Disabled, Enabled]
Maximum Payload Size
Set maximum TLP payload size for the PCI Express devices. The unit is
byte.
Settings: [128, 256, 512, 1024, 2048, 4096]
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Frequency/Voltage Control
Frequency/Voltage Control
Frequency/Voltage ControlFrequency/Voltage Control
DRAM Clock
The chipset supports synchronous and asynchronous mode between host
clock and DRAM clock frequency.
Settings: [By SPD, 200MHz, 266MHz]
DRAM Timing
The value in this field depends on the memory modules installed in your
system. Changing the value from the factory setting is not recommended
unless you install new memory that has a different performance rating
than the original modules.
Settings: [Manual, Auto By SPD]
SDRAM CAS Latency [DDR/DDR2]
This item is for setting the speed it takes for the memory module to
complete a command. Generally, a lower setting will improve the
performance of your system. However, if your system becomes less stable,
you should change it to a higher setting. This field is only available when
“DRAM Timing” is set to “Manual”.
Settings: [1.5/2, 2/3, 2.5/4, 3/5]
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Bank Interleave
This item is for setting the interleave mode of the SDRAM interface.
Interleaving allows banks of SDRAM to alternate their refresh and access
cycles. One bank will undergo its refresh cycle while another is being
accessed. This improves performance of the SDRAM by masking the
refresh time of each bank. This field is only available when “DRAM
Timing” is set to “Manual”.
Settings: [Disabled, 2 Bank, 4 Bank, 8 Bank]
Precharge to Active (Trp)
This field is for setting the length of time it takes to precharge a row in the
memory module before the row becomes active. Longer values are safer
but may not offer the best performance. This field is only available when
“DRAM Timing” is set to “Manual”.
Settings: [2T, 3T, 4T, 5T]
Active to Precharge (Tras)
This field is for setting the length of time it a row stays active before
precharging. Longer values are safer but may not offer the best
performance. This field is only available when “DRAM Timing” is set to
“Manual”.
Settings: [05T, 06~20T]
Active to CMD (Trcd)
This field is only available when “DRAM Timing” is set to “Manual”.
Settings: [2T, 3T, 4T, 5T]
REF to ACT / REF (Trfc)
This field is only available when “DRAM Timing” is set to “Manual”.
Settings: [08T, 09~71T]
ACT(0) to ACT(1) (TRRD)
This field is only available when “DRAM Timing” is set to “Manual”.
Settings: [2T, 3T, 4T, 5T]
Read to Precharge (Trptp)
Settings: [2T, 3T]
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Write to Read CMD (Twtr)
Settings: [1T/2T, 2T/3T]
Write Recovery Time (Twr)
Settings: [2T, 3T, 4T, 5T]
RDSAIT Mode
Settings: [Manual, Auto]
RDSAIT Selection
Key in a HEX number.
Settings: [Min = 0000, Max = 003F]
Spread Spectrum
When the mainboard's clock generator pulses, the extreme values (spikes)
of the pulses create EMI (Electromagnetic Interference). The Spread
Spectrum function reduces the EMI generated by modulating the pulses
so that the spikes of the pulses are reduced to flatter curves.
Settings: [Disabled, Enabled]
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Load Fail
Load Fail----Safe Defaults
Load FailLoad Fail
This option is for restoring all the default fail-safe BIOS settings. These
values are set by the mainboard manufacturer to provide a stable
system with basic performance.
Entering “YYYY” and press <Enter
Entering “NNNN” and press <Enter
request.
Safe Defaults
Safe DefaultsSafe Defaults
Enter> to load the default fail-safe BIOS values.
EnterEnter
Enter> will cancel the load fail-safe defaults
EnterEnter
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Load Optimized Defaults
Load Optimized Defaults
Load Optimized DefaultsLoad Optimized Defaults
This option is for restoring all the default optimized BIOS settings. The
default optimized values are set by the mainboard manufacturer to
provide a stable system with optimized performance.
Entering “YYYY” and press <Enter
Entering ”NNNN” will cancel the load optimized defaults request.
Enter> to load the default optimized BIOS values.
EnterEnter
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Set Supervisor/User Password
Set Supervisor/User Password
Set Supervisor/User PasswordSet Supervisor/User Password
Set Supervisor
User Password
This option is for setting a password for entering BIOS Setup. When a
password has been set, a password prompt will be displayed whenever
BIOS Setup is run. This prevents an unauthorized person from changing
any part of your system configuration.
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There are two types of passwords you can set. A supervisor password
and a user password. When a supervisor password is used, the BIOS
Setup program can be accessed and the BIOS settings can be changed.
When a user password is used, the BIOS Setup program can be accessed
but the BIOS settings cannot be changed.
To set the password, type the password (up to eight characters in length)
and press <Enter>. The password typed now will clear any previously
set password from CMOS memory. The new password will need to be
reentered to be confirmed. To cancel the process press <Esc>.
To disable the password, press <Enter
password. A message will show up to confirm disabling the password.
To cancel the process press <Esc
Additionally, when a password is enabled, the BIOS can be set to
request the password each time the system is booted. This would
prevent unauthorized use of the system. See “Security Option” in the
“Advanced BIOS Features” section for more details.
Enter> when prompted to enter a new
EnterEnter
Esc>.
EscEsc
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Save & Exit Setup
Save & Exit Setup
Save & Exit SetupSave & Exit Setup
Entering “YYYY” saves any changes made, and exits the program.
Entering “NNNN” will cancel the exit request.
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Exit Without Saving
Exit Without Saving
Exit Without SavingExit Without Saving
Entering “YYYY’ discards any changes made and exits the program.
Entering “NNNN” will cancel the exit request.
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CCCC
HHHH
AAAA
PPPP
TTTT
EEEE
RRRR
CCCC
HHHH
AAAA
PPPP
AAAA
PPPP
TTTT
TTTT
CCCC
HHHH
D
RIVER INSTALLATION
This chapter gives you brief descriptions of each mainboard driver and
application. You must install the VIA chipset drivers first before installing
other drivers such as VGA drivers. The applications will only function
correctly if the necessary drivers are already installed.
EEEE
EEEE
RRRR
RRRR
4444
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4444
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Driver Utilities
Driver Utilities
Driver UtilitiesDriver Utilities
Getting Started
VIA NAS 7800 Developer kits include a Driver CD that contains the
drivers and software for enhancing the performance of the mainboard.
Regular kits do not include a Driver CD. However, the latest drivers can
be downloaded from http://www.viaembedded.com/
Note:
Note:
Note:Note:
The driver utilities and software are updated from time to time. The
latest updated versions are available at
http://www.viaembedded.com/
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Running the Driver Utilities CD
To start using the CD, insert the CD into the CD-ROM or DVD-ROM
drive. The CD should run automatically after closing the CD-ROM or
DVD-ROM drive. The driver utilities and software menu screen should
then appear on the screen. If the CD does not run automatically, click on
the “Start” button and select “Run…” Then type: "D:\Setup.exe".
For Linux drivers, click the right button on mouse and click open. Linux
drivers are located in the "Driver" folder.
Note:
Note:
Note:Note:
D: might not be the drive letter of the CD-ROM/DVD-ROM in your
system.
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CD Content
CD Content
CD ContentCD Content
VIA 4in1 Drivers:
VIA 4in1 Drivers:
VIA 4in1 Drivers:VIA 4in1 Drivers:
Contains VIA ATAPI Vendor Support Driver (enables the
performance enhancing bus mastering functions on ATAcapable Hard Disk Drives and ensures IDE device compatibility),
AGP VxD Driver (provides service routines to your VGA driver
and interface directly to hardware, providing fast graphical
access), IRQ Routing Miniport Driver (sets the system's PCI IRQ
routing sequence) and VIA INF Driver (enables the VIA Power
Management function).
Includes V-RAID and RAID tools.
VIA Graphics Driver:
VIA Graphics Driver:
VIA Graphics Driver:VIA Graphics Driver:
Enhances the onboard VIA graphic chip.
VIA USB 2.0 Driver:
VIA USB 2.0 Driver:
VIA USB 2.0 Driver:VIA USB 2.0 Driver:
Enhances VIA USB 2.0 ports.
VIA
VIA Giga
GigaLAN Driver:
VIA VIA
Enhances the onboard VIA VT6130 10/100/1000M PCIe Gigabit
LAN Driver:
GigaGiga
LAN Driver:LAN Driver:
LAN chips and the VIA VT6122 Gigabit LAN chip (NAS 780015LST).
VIA RAID Driver:
VIA RAID Driver:
VIA RAID Driver:VIA RAID Driver:
Support for RAID devices.
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