YM (where have I heard that name before) incase you haven't looked at the echo website yet here is what they say about your question:
Windows ME FAQ - Windows ME is compatible and works great with Echo cards. There is no special driver for ME. You can use the same driver that is used for Windows 95 & 98 or the WDM driver. Note that Windows ME is not the same as Windows 2000. If you would like to use an Echo card on 2000 then you must have a separate driver. Please refer to our driver page for a list of our drivers.
In regard to my question here is what they have to say:
GOOD NEWS FOR AMD ATHLON USERS!
AMD Athlon processors work great with Echo Digital Audio hardware. You will need a motherboard with one of the following chipsets:
AMD 760 ( Sometimes referred as 761,762 or 766)
AMD760MP (Multi Processor - Check
www.Tyan.com )
VIA KX-133
VIA KT-133 & 133A
KT266 & KT266A (We have had a small handful of people complain about this chipset with Echo cards. We have also had people use this chipset successfully. We are looking in to the matter and should have feedback shortly. At this time we can not yet recommend them.)
What type of motherboard and chipset do you have?
These chipsets are now available on motherboards from numerous manufacturers. Click this link to get more information on VIA chipsets (
http://www.viatech.com/jsp/en/products/apolloindex.jsp ). Motherboards using the AMD 750 series chipset are not compatible with Echo Digital Audio hardware.
There are many motherboards like ASUS, TYAN, Etc. that work great. The only known board that we do not recommend at this time is ABIT.
What about AMD K6 processors (or an Intel processor with a non-Intel chipset)?
This may or may not work. Officially, AMD K6 processors and Pentiums with non-Intel chipets are not supported. Some users have enjoyed success while others experience lockups or other problems.
If you go ahead anyhow with a VIA chipset motherboard, it is known to have problems with IRQ routing in Windows 98 that cause our cards to not work properly. Some customers have had success with the VIA chipset and our hardware by downloading the latest software updates from the VIA website. Follow the link below to download a driver. If you are using an AGP graphics card, you should probably grab the AGP driver as well.
http://www.via.com.tw/jsp/en/dr/driver.jsp
Sorry dragon/readers this is a bit long-winded but at least this closes the question of what Echo have to say on these matters. They are also conducting a survey to see which boards are the best for their soundcards but the survey question categories look a bit basic so I don't know how they think they will get grades of efficiency worked out from them. Anyway post in your board details to them if you're using an echo and they will soon produce their findings...