rainyd, on 11 June 2010 - 08:40 AM, said:
Dave-H, same as you, I'd like to replace my old Radeon 9700 (if I remember correctly, bought in 2003).
Theoretically, I'm in a better position than you because I have a PCI-E slot on my motherbord.
But we will face two major problems: first, you can't buy a new graphic card equipped with less than 512 MB of graphic memory (not resolved issue on Win98/ME).
In fact, I don't even know if it's possible to run PCI-E graphic card with 256 MB on those systems.
Second problem, it is of course, lack of drivers.
In theory, you could hack drivers for Windows XP/2000 - they use WDM model driver which is supported by Win98/ME.
But as I presume, it's more than difficult.
As to your question: if your motherboard supports AGP 2.0 (mode 4x) you can put a card from X800 family as the strongest on the ATI side.
From Nvidia, it would be a GeForce 7 family.
I think that I should share something interesting - I once had faced something similar.
I had installed Windows 98 SE on a Compaq Presario 2837AP laptop, and it had ATI Mobility Radeon 9500 which was
supposed to be unsupported by Windows 98 (According to Compaq and ATI).
I found an older driver that supported Windows 98 (Can't remember which ATI Radeon card it was for)... and it worked with my card (Fully working, all resolutions/modes functional).
Of course, I did something slightly different, but also involved getting drivers to work on "Unsupported hardware".
My new laptop - a Compaq CQ40-538TX has a Nvidia 103M graphics card (Unlisted by Nvidia, and the generic drivers refuse to install). My father's Sony Vaio (With a modified Nvidia 8400M) also faced something similar.
I fixed that by modifying the .inf file. Perhaps some of you could modify the inf of a older Catalyst driver to make it work with the newer graphics card? From what I know, these drivers are "unified" - meaning that they are designed to work on many hardware versions (Even newer ones that still follow it's standard).
This post has been edited by sp193: 11 June 2010 - 10:17 AM