Video card conflict in Win98

I recently upgraded to Windows 98 (1st Edition)and have had a problem with my video card. I have a Diamond Viper 550 AGP card based on the nVidia chipset. After upgrading to Win98, windows will not properly configure or reconize the card. It will not display in no more than what looks like 4 bit color scheme. Now here is the kicker. At one time I was using this same card under Win98 with no problems, but due to cd rom conflicts, I had to format drive C. After installing Win95 and the video card, it worked fine. Then I istalled Win98 again and thats when the problem starts. I can use this video card fine under Win95 with no problems at all which is why I am back to using Win95 version 2.1 with USB support.I have a basic no name computer with the following items:
AT Motherboard w/ 128 megs ram,
Diamond Viper 550 video card AGP
Soundblaster Live Value sound card PCI
Diamond 56K v90 ISA modem ISA
Pentium II 266 CPU
WD 6.4 hard drive, and floppy
Thanks for any help.
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Install Win98 from scratch (on a formatted drive).  Even if you're using an upgrade cd, you can install it fresh.  Also, use the nVidia reference drivers at the nVidia website (  They are very stable, and allow for excellent card performance.
Anothing thing to try.  Click on Start, Settings, Control Panel, System.  Click on Display Driver and remove your video card from the list.  Restart and see if Windows detects the card correctly.  It may require the drivers which you should have.  If not, download them as BigOrange suggested.


1. Download the most current drivers for your card and save the on your hard drive.
2. Boot to safe mode remove all display adapters in the device manager.
3. Reboot the computer
4. When windows redetects your video card and asks you for the drivers choose to diplay the drivers in a specific location and select the location you previously saved the files in.
If windows does not ask you for the drivers and just bbots into windows do this:
right click my computer> select properties> Select device manger tab> Expand the display adapters> highlight your video card (or what it has detected)> select the properties button> then the driver tab> select update driver,  then choose to select drivers from a specific location on the next menu  (choose the location you saved the downloaded files to).
All should be fixed!
Good Luck - Mike

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Cloud Class® Course: CompTIA Cloud+

The CompTIA Cloud+ Basic training course will teach you about cloud concepts and models, data storage, networking, and network infrastructure.

Mongo, do a clean install of Windows 98 and use the Win98 drivers for the video card. Don't use the Diamond in control drivers or tools.
If this Video card is one of the first release Viper 550's then Diamond did release a video bios upgrade that along with the newest drivers did fix problems as you have described with win98.

You can check the bios version with the diamond control tools.
Its useless for anything else.

I agree with "bigorange"
I've found that using NVIDIA'S latest Generic TNT drivers behave better on the V550.

Also,  check  how  things  are  being seen  by  the  bios,   do  all  of  your  devices  have their  own IRQ/DMA?  sometimes simply resetting  bios defaults can correct the strangest of things.....also  sometimes  the latest drivers are worse than the originals,  dont assume  that  they will fix  your  issue  or improve your particular situiation..usually  yes,  but  sometimes drivers  get overdone I think....Also  when  you remove the card  as suggested previously,  try to notice exactly what the card is called by Windows as it finds it...I have overlooked version numbers  and letters before and spent hours installing  "Lucent 56k LN" drivers  when it was identified by windows as a "Lucent Tech 56 ASN"  or some other slight deviation.....   I belive this type of problem is due to 8-10 products are all shipped in the same box design, except for a small sticker to designate a difference these can sometimes be misinterpreted.......and finally  is your bios  version current?  It  may  offer  some answers due to AGP version etc.......

mongo6872Author Commented:
I want to thank everyone that responded to my question. There were many answers given that I cannot use just one. So I am going to use a little of everyones advice and suggestions.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows OS

From novice to tech pro — start learning today.