Gigabyte GV-NX68T256DH User manual

Copyright
© 2005 GIGABYTE TECHNOLOGYCO., LTD
Copyright by GIGA-BYTE TECHNOLOGY CO., LTD. ("GBT"). No part of this manual may be reproduced or transmitted in
any from without the expressed, written permission of GBT.
Trademarks
Third-party brands and names are the property of their respective owners.
Notice
Please do not remove any labels on VGA card, this may void the warranty of this VGA card.
Due to rapid change in technology, some of the specifications might be out of date before publication of this booklet.
The author assumes no responsibility for any errors or omissions that may appear in this document nor does the author make
a commitment to update the information contained herein.
GV-NX68T256DH
User's Manual
GeForce™6800 GT Graphics Accelerator
Rev. 101
12MD-NX68T256DH-101

GV-NX68T256DH Graphics Accelerator - 2 -
English
Table of Contents
1. Introduction ......................................................................................... 3
1.1. Features ..................................................................................................... 3
1.2. Minimum system requirement ....................................................................... 3
2. Hardware Installation ........................................................................... 4
2.1. Board layout ............................................................................................... 4
2.2. Hardware installation ................................................................................... 6
3. Software Installation ............................................................................ 8
3.1. Win®XP driver and utilities installation .......................................................... 8
3.1.1. Operating system requirement ..................................................................................... 8
3.1.2. DirectX installation .......................................................................................................... 9
3.1.3. Driver installation ........................................................................................................... 11
3.1.4. Utilities on driver CD .................................................................................................... 13
3.1.5. Taskbar icon ................................................................................................................. 15
3.1.6. Display properties pages............................................................................................. 18
3.1.7. nView properties pages ............................................................................................... 22
3.2. Win®2000 driver installation ...................................................................... 27
4. Troubleshooting Tips ........................................................................ 28
5. Appendix .......................................................................................... 29
5.1. How to Reflash the BIOS ........................................................................... 29
5.1.1. Reflash BIOS in MS-DOS mode ................................................................................. 29
5.1.2. Reflash BIOS in Windows mode ................................................................................ 29
5.2. Resolutions and color depth table (In Windows®XP) .................................. 30

Introduction- 3 -
English
1. Introduction
1.1. Features
•Powered by NVIDIA®GeForce™6800 GT Graphics Processing Unit (GPU)
•Supports the newest PCI Express x 16
•Integrated with 256MB DDR III memory
•Supports DirectX 9.0c
•Supports TV-Out connector
•Supports 2 DVI-I connectors
1.2. Minimum system requirement
•IBM®or 100% PC compatible with Pentium®III 650MHz or AMD Athlon 650MHz
class processor or higher
•One PCI Express x 16 slot
•Operating Systems Win®2000 / Win®XP
•64MB system memory
•50MB of available disk space for full installation
•CD-ROM or DVD-ROM drive

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2. Hardware Installation
TV-out
DVI-I
Connector 2
DVI-I
Connector 1
NTSC / PAL TV
Projector
AV Output
S-VideoOutput
Analog LCD Monitor
Digital LCD Monitor
DVI Output
VGA Output
DVI-I to D-Sub Adapter
TV-Out
DVI-I Connector 2
DVI-I Connector 1
2.1. Board Layout

Hardware Installation- 5 -
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Expansion cards contain very delicate Integrated Circuit (IC) chips. To
protect them against damage from static electricity, you should follow
some precautions whenever you work on your computer.
1. Turn off your computer and unplug power supply.
2. Use a grounded wrist strap before handling computer components. If you do not
have one, touch both of your hands to a safely grounded object or to a metal object,
such as the power supply case.
3. Place components on a grounded antistatic pad or on the bag that came with the
components whenever the components are separated from the system.
The card contains sensitive electric components, which can be easily damaged by
static electricity, so the card should be left in its original packing until it is installed.
Unpacking and installation should be done on a grounded anti-static mat. The operator
should be wearing an anti-static wristband, grounded at the same point as the anti-
static mat.
Inspect the card carton for obvious damage. Shipping and handling may cause damage
to your card. Be sure there are no shipping and handling damages on the card before
proceeding.
DO NOT APPLY POWER TO YOUR SYSTEM IF IT HAS BEEN DAMAGED ON
THE CARD.
In order to ensure your graphics card working correctly, please use official
Gigabyte BIOS only. Use none official Gigabyte BIOS might cause problem
on the graphics card.

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2.2. Hardware installation
Installing Your graphics card.
Now that you have prepared your computer, you are ready to install your graphics
accelerator card.
To install your graphics accelerator card:
1. Power off the computer and monitor, then
disconnect the display cable from the back
of your computer.
2. Remove the computer cover. If necessary,
consult your computer's manual for help
in removing the cover.
3. Remove any existing graphics card from
your computer.
Or, if your computer has any on-board
graphics capability, you may need to
disable it on the motherboard. For more
information, please see you computer
documentation.
4. Locate the PCI Express x 16 slot. If
necessary, remove the metal cover from
this slot; then align your graphics card with
the PCI Express x 16 slot, and press it in
firmly until the card is fully seated.

Hardware Installation- 7 -
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5. Replace the screw to fasten the card in place,
and replace the computer cover.
You are now ready to proceed with the installation of the graphics card driver. Please
refer to next chapter for detailed instructions.
Warning!
When installing the graphics card, do not push down the
heat pipe. This may displace the heat pipe and cause
bad contact between the GPU and thermal pad as well
as affect the heat dissipation. Please do not touch the
graphics card when it is running to avoid the system
unstable problems.
After installing the GV-NX68T256DH to your computer,
please remember to connect at lease one power cable on
the graphics card to the power supply connector.
We suggest you to connect both of the two power cables
on the graphics card to the power supply to achieve
optimcal graphics performance.
To TV or VCR
To Flat Panel Display
6. Plug the display cable into your graphics
card; then turn on the computer and monitor.
To connect a flat panel directly to your graphics
card, use the DVI-I connector. To connect a
VGA monitor to the DVI-I connector, plug
the DVI-I to D-sub adapter into the DVI-I
connector, then plug the monitor cable into
the adapter. Connect a flat panel
Connect a VGA monitor via DVI-I to D-sub adapter

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How NVIDIA® SLITM (Scalable Link Interface) technology works:
In an SLI configuration, two SLI-ready graphics cards with the same model and from the
same manufacturers are connected together via SLI bridge connector in a system that
provides two x 16 PCI Express slots to scale graphics performance. The picture below
shows that two graphics cards are linked in parallel in an SLI configuration.
SLI bridge connector
(provided by motherboard
manufacturer)
Two SLI-ready graphics
cards of the same type.
(Example: GV-NX66T128D)
For more information about the hardware configuration of an SLI system, please refer to
motherboard user manual.
3. Software Installation
In this manual, we assume that your CD-ROM Drive letter to be Drive D:
The installation of Win®2000 / Win®XP drivers is very simple. When you insert the driver CD
into your CD-ROM drive, you can see the AUTORUN window (if it does not show up, run
"D:\setup.exe"). Then you can follow the guides to setup your graphics card driver. (Please
follow the subsection 3.1.3 "Driver installation" to install the driver for your graphics
accelerator.)
3.1. Win®XP driver and utilities installation
3.1.1. Operating system requirement
•When loading the graphics card drivers for the system, please make sure your system
has installed DirectX 9 or later version.
•If you install the graphics card drivers for the motherboard, which consist of SIS or VIA
chipsets, please install the appropriate driver program for that motherboard. Or please
contact your motherboard nearest dealer for motherboard driver.

Software Installation- 9 -
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3.1.2. DirectX installation
Install Microsoft DirectX to enable 3D hardware acceleration support for Windows®2000
or Windows®XP to achieve better 3D performance.
0Note: For software MPEG support in Windows®2000 or Windows®XP, you must
install DirectX first.
Click "Install DirectX 9" item.
Step 1. When autorun window show up,
click Install DirectX 9 item.
Step 2. Choose I accept the agreement and
Click "Next" button.
Step 3. Click "Next" button.

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Step 4. Click "Finish" to restart computer.
Then the DirectX 9 installation is completed.
Installing the components.

Software Installation- 11 -
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3.1.3. Driver installation
A. New hardware found
After the graphics card is inserted into your computer at the first time, the windows will
automatically detect a new hardware in the system and pop out a "New Hardware Found"
message. The following is the step-by-step installation guide.
Step 1: Found new hardware wizard: Video controller (VGA Compatible)
Click "Next" button to install the driver. (There is a
driver CD disk that came with your graphics
accelerator, please insert it now.)
Or click the "Cancel" button to install the driver
from AUTORUN window.
Step 2: Found new hardware wizard: Searching and installing
The wizard will search for the driver and install it automatically.
Step 3: Found new hardware wizard: Finish
Click the "Finish" button to finish the installation.

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B. Driver installation (Autorun Window)
Insert the driver CD disk into your CD-ROM, and then you can see the AUTORUN window.
If it does not show up, please run "D:\setup.exe".
Step 1. When autorun window show up,
click Install Display Driver item.
Click "Install Display Driver" item.
Step 2. Click "Next" button.
Step 3. Click "Finish" button to restart
computer. Then the driver installation is
completed.
Windows installings the components.

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3.1.4. Utilities on driver CD
Insert the driver CD disk into your CD-ROM, and then you can see the AUTORUN window.
If it does not show up, please run "D:\setup.exe".
•Install Gigabyte Utilities (V-Tuner 2 PLUS):
Step 1.Click "Utilities" item.
Step 4. Enter your name and company.
Step 5. Click "Finish" button to restart computer.
Then the utilities installation is completed.
Step 3. Click "Next" button.
Step 2.Click "GIGABYTE Utility" item.

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V-Tuner 2 PLUS (Overclock and Hardware Monitor Utility)
V-Tuner 2 PLUS supports monitoring of the temperature, cooling fan speed and voltage of
the graphics chip and lets you adjust the working frequency of the graphic engine and video
memory (Core Clock and Memory Clock).
Enables auto adjustment of core/ memory
clock settings set by user when running
3D applications.
Displays core clock status
Speed adjustment of Fan 1
to Quiet/Turbo/Normal Mode
Enables dynamic adjust-
ment of fan speed based
on GPU temperature.
Speed adjustment of Fan 2
to Quiet/Turbo/Normal Mode Opens Help page Select choice of skin
Displays Memory Temperature
Adjust Core speed Adjust Memory speed
Displays memory clock status
Displays Vcore/VDD/VDDQ status
Click to display Vcore status
Click to display VDD status
Click to display VDDQ status
Displays GPU Temperature
The time between hard-
ware status checks.
(Default: 5 seconds)

Software Installation- 15 -
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3.1.5. Taskbar icon
After installation of the display drivers, you will find a GIGABYTE icon on the taskbar's
status area. Right-clicking this icon opens the GIGABYTE control panel, showing a menu
composed of shortcut of the graphics card's enhanced and other functions.
You may click the "Display Properties" item, and then click Settings. Click "Advanced"
after clicking Settings. Click the appropriate tab to change your display settings.
Right click the icon.
You can link to GIGABYTE website for updated information about
the graphics accelerator, latest drivers, and other information.
Click "VGA Information" item
into the "VGA Info" and "Color
Adjust" tabs.

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VGA Information
VGA Info lists the relevant information about your card.
Color Adjust
Color Adjust allows you to make color adjustments, such as brightness, contrast and
gamma values for each or all of RGB colors.

Software Installation- 17 -
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After installation of the display drivers, you will find a NVIDIA icon on the taskbar's
status area. Click this icon to open the control panel.
You can adjust the properties
of the graphics accelerator
from here.
Right click the icon.

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GeForce 6800 GT properties
You can click the item to change
the color depth.
You can move the slider to change
the resolution.
This page shows the Adapter, System and
Driver version information.
Click "Advanced" icon for adapter and setting.
You can select other properties from the pop-out menu.
3.1.6. Display Properties pages
To access Display Properties pages, right-click the GBT icon on the taskbar and select
Display Properties or right-click on Desktop and then select Properties. The Display
Properties dialog box shows the information of display adapter, color, the range of display
area, and the refresh rate.
Settings (Resolutions and Color depth for Windows)
You may adjust the screen resolution and color quality settings in this dialog box.
To access more advanced options, click the "Advanced" button.
After pressing the "Advanced" button in Settings, you'll see the Default Monitor and NVIDIA
GeForce 6800 Series GPU dialog box. Click the GeForce 6800 GT tab. (You can also click the
Nvidia icon on the taskbar and select Nvidia Display to access the Geforce 6800 GT page.)

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nView allows you to connect separate displays to single
graphics card.
• nView modes: select your preferred nView display modes
here. Options: Single display/ Clone/ Horizontal span/
Vertical span/ Dualview
• Display pair: select a single display or display pair. The
selected display combination will appear in the graphical
representation below.
If TV is chosen as the display, you will need to select the
proper TV format. To do this, click "Device Setting" followed
by "Select TV format". Select the format for your television
and then click "Apply" followed by "OK".
nView Display Mode properties
Performance and Quality Settings properties
The sliders lets to decide whether your application should
use quality or high performance texture.
• Application profiles: Select the application profile from the
list of profiles.
• Global Driver Settings: Select the Settings item and move
the slider below to set the degree of antialiasing to used
in Direct3D and OpenGL applications.
• Antialiasing settings: allows to set the degree of the Global
Driver Settings.
Display Model GV-NX68T256DH
Matrix CRT+TV Yes
CRT+DVI Yes
DVI+TV Yes
Multi-GPU properties
Your graphics card features NVIDIA Scalable Link Interface
(SLI) technology.
Add a second graphics card with SLI technology for significant
improvements in rendering performance.
Note: Only Windows XP operating system supports the dual
GPUs mode. Please do not enable SLI multi-GPU in
Windows 2000.

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Overlay Controls properties
The Overlay Controls Properties can adjust Overlay zoom
controls and Overlay color controls. There is only one video
overlay, which is only available on the Primary display. The
video overlay controls are automatically activated during
playback of any video file type that supports overlay
adjustments. The "Adjust Colors" button will access "Color
Correction" properties page.
Troubleshooting properties
The NVIDIA settings taskbar utility lets you conveniently
access various features and presets you've configured in
the Display Properties directly from the Windows taskbar.
• Display the NVIDIA Settings icon in the taskbar
The Desktop Manager provides enhanced nView multi-
display functionality and helps you organize your
applications for use with multiple displays and desktops.
• My connected TV does not appear in this list
This option can be used to force detection of an attached
TV set which does not report its presence to the graphics
card.
Color Correction properties
The Color Correction Properties is used to compensate for
variations in luminance between a source image and its output
on a display device. Adjust the color correction settings to
provide more accurate color reproduction of images(such as
photographs) on your display device. Also, many 3D-
accelerated games may appear too dark to play. Increasing
the brightness and/or the gamma value equally across all
channels makes these games appear brighter and more
playable.