John
Normally, the Primary Master will be the boot device. If your BIOS has an
option to select boot device (usually disk C or disk D), the selected disk
will be used. This option essentially uses the selected disk as a primary
master, even if jumper are set to something else.
You can install NT on any of your disks, but the system partition (where a
few boot files are stored) will be on the boot device.
Best regards
Bjorn

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Bjorn Landemoo - mvp2@landemoo.com - http://landemoo.com/
Microsoft MVP - Windows Server Networking
>When installing NT 4.0 Server on an x86 computer with (2)
>IDE HDDs, how does Setup determine which drive is to be
[quoted text clipped - 3 lines]
>in the motherboard BIOS or is some other technique used to
>make this decision?