Most of the ultra ata drives can be set to a lower interface speed, IE from UltraDMA 100 to PIO4/3 etc. The drive manufacturers have utilities on their sites to do this. The Ultra DMA spec is supposed to be downward compatible-just plug and go. On a special purpose device like the SNAP! this may or maynot be true. Also just by plugging an ultra DMA drive into a regular IDE cable will force it to run at the lower interface. There are drives out there that have trouble with this though.....
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