I've got 2 IBM 3070 20gb hard drives in this machine. When the machine POSTs, BIOS reports one of them as "IBM-DTLA-307020" and the other one as "IC35L020AVER07-0"

Hmm.

By the way, the Win2k partition is on the one with the funky name.

Oh, and DMA mode won't kick in - I'm running PIO in Winders.

Methinks there may be something wrong with the drive...

(For the record: Both serial and the parallel port are disabled in BIOS. I tend to disable resource gobblers that I'm not using.)