Gigabyte GV-NX795T512H-RH User manual

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GV-NX795T512H-RH
GeForce™7950 GT Graphics Accelerator
User's Manual
Rev. 101
12MD-NX795THR-101R
Copyright
© 2006 GIGABYTE TECHNOLOGY CO., 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Due to rapid change in technology, some of the specifications might be out of date before publication of this booklet.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.
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This product incorporates copyright protection technology that is protected by U.S. patents and other intellectual property rights.
Use of this copyright protection technology must be authorized by Macrovision, and is intended for home and other limited viewing
uses only unless otherwise authorized by Macrovision. Reverse engineering or disassembly is prohibited.

GV-NX795T512H-RH Graphics Accelerator - 2 -
English
Table of Contents
1. Introduction ......................................................................................... 3
1.1. Features ..................................................................................................... 3
1.2. Minimum System Requirements ................................................................... 3
2. Hardware Installation ........................................................................... 4
2.1. Board Layout .............................................................................................. 4
2.2. Hardware Installation ................................................................................... 6
3. Software Installation .......................................................................... 10
3.1. Windows®XP Driver and Utilities Installation ............................................... 10
3.1.1. Operating System Requirement ................................................................................. 10
3.1.2. DirectX Installation ........................................................................................................ 10
3.1.3. Driver Installation .......................................................................................................... 12
3.1.4. Taskbar Icon ................................................................................................................. 14
3.1.5. Display Properties Pages ............................................................................................ 15
3.1.6. nView Properties Pages .............................................................................................. 22
3.2. Windows®2000 Driver Installation ............................................................. 27
4. Troubleshooting Tips ........................................................................ 28
5. Appendix .......................................................................................... 29
5.1. How to Reflash the BIOS in MS-DOS Mode ............................................... 29
5.2. Connecting to a HDTV .............................................................................. 30
5.3. Resolutions and Color Depth Table (In Windows®XP) ............................... 31

Introduction- 3 -
English
1. Introduction
1.1. Features
•Powered by NVIDIA®GeForce™7950 GT Graphics Processing Unit (GPU)
•Supports the newest PCI Express x16
•Integrated with 512 MB DDRIII memory
•Supports DirectX 9.0c
•Supports NVIDIA® SLITM (Scalable Link Interface) technology (Note)
•Supports AV / S-Video and HDTV output
•Supports D-sub connector (by adapter)
•Supports 2 DVI-I connectors
•Supports HDCP (High-bandwidth Digital Content Protection) technology
1.2. Minimum System Requirements
•IBM®or 100% PC compatible with Pentium®III 650 MHz or AMD Athlon 650 MHz
class processor or higher
•One PCI Express x16 slot
•Operating Systems Windows®2000 / Windows®XP
•64 MB system memory
•50 MB of available disk space for full installation
•CD-ROM or DVD-ROM drive
•Minimum power supply 350W
(To set up an SLI system with the GV-NX795T512H-RH graphics cards, please
use a power supply of 450W or above.)
(Note): SLI technology requires a PCI Express motherboard with two x16 physical
connectors. Graphics cards working in an SLI configuration must be with the same model
name (e.g. GV-NX795T512H-RH) and from the same vendor (e.g. GIGABYTE
TECHNOLOGY).

GV-NX795T512H-RH Graphics Accelerator - 4 -
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2. Hardware Installation
2.1. Board Layout
TV-out
DVI-I Connector 1
DVI-I Connector 2
SLI connector
TV-Out
DVI-I
Connector
1
S-Video Output
Pb/AV Output
Pr
Y
NTSC / PAL TV Projector
HDTV
OR
NTSC / PAL TV Projector
OR
Digital LCD Monitor
DVI Output
DVI-I to D-Sub
Adapter
VGA Output
Analog LCD Monitor Analog Monitor
OR
DVI-I
Connector
2

Hardware Installation- 5 -
English
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 remove the existing graphics 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 your computer documentation.

Hardware Installation- 7 -
English
You are now ready to proceed with the installation of the graphics card driver. Please refer
to next chapter for detailed instructions.
To TV / VCR To Flat Panel Display
2. Replace the screws to fasten the card in
place, and replace the computer cover.
To install your new graphics card:
1. Locate the PCI Express x16 slot. If necessary,
remove the metal cover from this slot; then
align your graphics card with the PCI
Express x16 slot, and press it in firmly until
the card is fully seated.
* Please make sure that the gold edge connectors of the graphics card is securely inserted.
After installation, remember to connect the power cable to your graphics card, or the system
will not boot. Do not touch the card when it's operating to prevent system instability.
3. 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
intotheDVI-I connector, thenplugthe monitor
cable into the adapter.
Connect a flat panel
Connect a VGA monitor via DVI-I to D-sub adapter

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GIGABYTE Video Adapter for Nvidia Graphics Cards
(1) Connecting HDTV
Connect your HDTV cables to the video adapter
according to the corresponding color.
(Y= Green, Pr= Red, Pb= Blue)
(2) Connecting S-Video
If your TV has a S-Video connection, connect the S-
Video cable from your TV to the S-Video Out port on the
adapter.
(3) Connecting AV Output
If your TV has a Composite video connection, you can
connect the RCA cable from your TV to the AV Out port
on the adapter.
Connect to the TV-Out port
on the graphics card.
S-Video Out HDTV Component
(Y+Pr+Pb)
AV Out

Hardware Installation- 9 -
English
How NVIDIA® SLI™(Scalable Link Interface) technology works:
In an SLI configuration, two SLI-ready graphics cards of the same model and the same manufacturers
are connected together via SLI bridge connector in a system that provides two x16 PCI Express slots
to scale graphics performance. The picture below shows that two graphics cards are linked in parallel
in an SLI configuration.
Two SLI-ready graphics cards of the same type.
(Example: GV-NX795T512H-RH)
SLI bridge connector
(provided by motherboard manufacturer)

GV-NX795T512H-RH Graphics Accelerator - 10 -
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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. Users who run Windows XP with Service Pack 2 or above do not need to
install DirectX separately.
Step 1. When autorun window show up, click
the Install DirectX 9 item.
3. Software Installation
In this manual, we assume that your CD-ROM Drive letter to be Drive D:
The installation of Windows®2000 / Windows®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. Windows®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 9.0c 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.