I have a computer with a p4IBMS motherboard and a 2.0GHZ Pentium 4 processor. In the last two days it has gone through two hard drives. The first one was a relatively new Maxtor 60GB. At first it booted absolutely fine and was running great while installing XP Pro on it, then worked great for hours, then I done the Windows updates, restarted the computer and all of a sudden, the drive was not being seen at all, not even in the bios. So, I tried slaving it into my other computer...with it attached to the ide cable, what everever else that is attached to the cable, as well as this drive...are not seen. Detach the hard drive from the cable and the cdrom is seen fine. I figured, ah crap...bad hard drive, so I install another one into the computer, install windows and everything is fine, install the windows updates and restart....Hard drive #2 not being seen by either computer..... I ask..coincidence ????????

I suspect a problem cableing or Master/Slave plugging.

I agree with ham30. Double check the master/slave jumper settings on all your IDE devices...do NOT use cable select. And it's best that you don't pair up 2 HDDs on the same cable/channel. Put the 2nd HDD on the 2ndary channel. R.I.P. Eddie Guerrero "Viva La Raza"