Strange things with my hard drive

[Victor Tsaran]

OK, let me try step-by-step.
Motherboard: Asus P2B, latest BIOS from March 2000.
Does not support UDMA66/100.
CPU: PII 350MHZ.
Clock: 100MHZ.
RAM: 327MB, SDRAM.
Drive: WD, 54  RPM, 10GB.
I don't think the drive supports UDMA66/100, so I disabled it just in case.
Currently: HDD on IDE1 as master; CDROM on IDE0 as master. Presently, I
connected both using regular 40-pin cables. Also tried 80-pin conductor for
HDD, but no change.
Any more info?
Thanks,
Vic