I've already mentioned several times how the hard drives are connected, but I'll repeat myself again.
The hard drive, with Windows or just set for storage, will not boot in the mobile racks. They crash for some reason, and I don't know why. Power is not the problem, and I doubt the IDE connection to the bay and inside the tray are the problem, because, as I said before, and old 80 gig and 13 gig that I put in my mobile racks work fine, and I always, ALWAYS, do clean formats of any drive I use if I build a new system.
BIOS picks up the hard drives regardless of how they're installed. They show the drive model number of the particular hard drive connected at the time. The only drive that was unformatted was my 250 gig hard drive that I bought during the weekend, and the same problem persists, when in mobile racks, they don't work; when outside, they do.
Since I am not using a combo of IDE and SATA drives, the hard drive's are listed according to the IDE controller they're connected to, and what jumper settings are in use on the hard drive, and as I said before that I never really have 2 or more drives installed at the same time, all my hard drives are set to master, and no, they are not in the computer at the same time, so they can't conflict. Again, said this before. Also, as I had said before, I always have my hard drives on the first IDE channel, and my DVD burner on the second. They never are on the same channel, and aside from my zip drive that's currently unplugged, both power plug and IDE connection, the DVD drive doesn't share the IDE channel with any other device. And BIOS is set for auto detect of any devices, even for the SATA controllers. It's the only way to go.
As for installing multiple installations of Windows, I like to be safe. I actually go through the long long process of formatting and installing Windows on each drive individually. This is the best method for me since, to me, it's the simplest. I don't have to worry about screwing up the format or Windows install on another hard drive, nor on the hard drive I'm setting up at the time.
One thing I haven't mentioned though is someting that just came to mind just now writing this post is that once, in trying to diagnose this problem, I turned off the first IDE channel and plugged the hard drive into the second IDE channel, with the hard drive set to master and DVD set to slave. Someone had recommended that I try it to see if it worked. It didn't. In fact, the system took about a minute and a half trying to detect any connected drives, and then it would just hang. Hell, it was worth a shot.
Setting up my mobile racks for simply storage drives is not really an option to me. In my very first post, with the copied post I had pasted, I said I wasn't the only one that uses this computer, so having separate hard drives is best, that way I don't have to worry about any of my stuff on my hard drive being screwed up, and vice versa. Each drive has it's own install of Windows, and it's own programs. Makes life much easier for me. So having one main drive always installed and having storage in mobile racks isn't an option for me. If my mom uses the computer and accidentially does something that causes the system to crash, not only is she down, but so am I, and I've gotta spend time trying to get back up and running. And if the hard drive just dies for no reason, again, same problem. Gotta spend time trying to get back up and running, only this time, I gotta take the time to open the case and replace the hard drive.
With the mobile rack setup I've always used, one drive has a problem, I can pull it out and put in another one and suffer really no down time, and if a drive is about to die, I can transfer the data to another storage device before the drive is inoperable. Also, if I get a new larger hard drive for either myself or my mom, formatting and setting it up is easy, cause I can just put the drive in a mobile rack tray, lock it into the rack, and start setting up Windows, without having to worry about a permanent drive inside the computer.
If I have appeared frustrated, I apologize. Just that I keep getting asked the same questions over and over again after I answer them, and not so much here on these forums, just everywhere.