Hmmm, deja vu all over again.
Lazyboy, I posted the same question about 2 weeks ago and didn't get any replies.
I emailed IBM:
I have the 75GXP 30GHz hard drive and an Abit KT7-Raid motherboard. The BIOS recognizes the hard drive by name. However, in Device Manager, the hard drive reads as "Generic IDE Disk Type47".Is this normal? FWIW, DMA is enabled.
IBM wrote back:
The drive should be fine if Device Manager is seeing it as "Generic IDE Disk Type47". You may want to try reinstalling your motherboard drivers, bus mastering drivers, or your controller drivers. This should not hurt/help your performance, however. I hope this helps.
Given the last sentence, I've left everything as is - so the bottom line is it's okay.