Thx again ruk...your link takes me to an error page though. Can't remember but I think it was you who provided me with the link for the ECS KS75A guide, this is what they say about cpu support for my board;
(Quote): CPU support
If flashed with the right bios version, all board versions support Duron Spitfires, Duron Morgans, Athlon Thunderbirds*, Athlon XP Palominos and Athlon XP Thoroughbred A/Bs based on a 100 (200DDR) or 133 (266DDR) FSB. The board also unofficially supports the Athlon XP Barton, but you will not be able to boot the board at the Barton's nominal 166 or 200 MHz FSB because of a hardware limitation, therefore you will have to either underclock your Barton or experiment with software FSB changing to run it at 166MHz FSB.
In other words, you can put up to an Athlon XP 2400+ or an Athlon XP 2600+ (only the 266FSB version) on the K7S5A. (End Quote).
So to me a Barton core dosn't seem like a viable upgrade for my current board. Also, trying to find anything above an Athlon 2200+ w/266FSB has been a complete lesson in frustration. That is one of the reasons I thought I'd go with a new board....also for the 8xagp and for its ram capacity...3gigs as compared to my current 1.
It seems that Athlon64 combos are only priced a little higer than the combo I have picked but I have been told there are few things that are optimized for 64 bit technology. I'd certainly be interested if anyone can tell me more about these. Thx again ruk...I greatly appreciate your interest and info!:)