In ran into exactly the same thing recently. At least it was almost exact. The long number starting DS/N was not a perfect match in my case, but I do know what the card I have is, and it's probably the same as what you had there.
The card is an Invidia TNT2, Model 64. If you do to support.dell.com and put in the service tag, and specify the OS (Windows 98 in our cases), the driver package for this card will be one of the ones listed (I think it was the bottom one). I installed the driver and it worked fine.
I know this post is many many months after your inquiry. I only did this in case somebody does a search that finds this thread.
Originally posted by dhsrcjh
The computer is a Dell 4100. The operating syatem was ME and is now 98. There is no manufacture name on the card and it is removeable. I have it in my hand now. Here is what is on the card:
DS/N CN-O4C864-44571-OB6-2733 IC/O CN
TOPSEARCH TS-M-8VDC 94V-0 4300-02-4527
That is all there is. I have the cd with the drivers, there are a lot of them for ME. None of them will work with 98.