This combo 06/12/2001-694X-686B-IA6LJC6CC-00 is seen on system of the brand MSNet sold by a supermarket called Carrefour in France. Maybe an OEM version, maybe just another motherboard by Chaintech. Will try and find out.
CT-6VIA6/100 then. Right, this is a 6VIA6 but with UDMA 100 support. It looks like Chaintech themselves have no bios upgrade for this board or any other online info. As far as processor support, I'd take the ones listed for the regular 6VIA6, not the Tualatin variant.