Please point out the sentence where I make any logical argument that involves an installed user base and the SIS chipset. All I've been trying to do is solve someone's config problems with the K7S5A and point out all of your (AZGamer's) mistakes and miconceptions. It's you who seems to have a problem with the "simple logic". With my degree I can with 95% confidence say that your attempts at statistics fall into the first and not last category of "lies, damn lies, and statistics."
In any case, the basic info I asked for and made are pretty much the same you'll hear regardless of which reliable souce you go to for troubleshooting advice on this board.
As AZGamer's link so nicely pointed out, there are people that get this board working perfectly with the Radeon 7500. There is no "incompatibility" specific to this board -- just poor driver support and too many inexperienced people trying to set it all up. That last bit is that main issue with the K7S5A board.
With it's low price point and good reviews, many people who otherwise wouldn't have never before considered building a computer tried for the first time with the K7S5A. The next biggest issue is the low price. People trying to put together a cheap system bought cheap components to go with this board. A big no-no, regardless of mainboard, if you want to avoid problems.
In any case, try searching for a hardware site that actually has put together an article on this supposed incompatibilty. Bettery yet, goto the "premier ATI site" and
search their site for mention of the K7S5A. You can even search for "elite" (the first part of ECS). All you'll see is that ECS was the second largest mainboard producer in a July post, with 6.72 million pieces. No documented incompatabilites.
Search the forum too and you'll find the thread AZGamer linked to. Also a thread listing people who managed to get their 8500 up problem free, with 7 or 8 K7S5A posting to it. Maybe in AZGamer's mind, adding bells and whistles somehow fixed this supposed "AGP implementation" problem. ATI no doubt rewrites the AGP spec with every graphics card revision. Suuuuure. Or maybe there's no actual incompatibility. Believe what you want, just don't lie blatently about it.