2-11
Microsoft Windows NT Installation
Swapping a Host Adapter
Swapping an Ultra160 Family host adapter for a non-Ultra160
Family host adapter is similar to the procedure for adding a host
adapter. The important distinction is that you make all software
configuration changes while Windows NT is running and before
you make the hardware changes.
Note:
If you do not install the driver that comes with the
new host adapter, it may result in a Windows NT boot
failure.
To swap adapters, follow these steps:
1
Install the driver for the Ultra160 Family host adapter by
following the steps in Installing the Driver When Windows NT is
Already Installed on page 2-4.
It is not essential to remove the device driver for the host
adapter you are replacing. Windows NT dynamically detects
the absence or presence of host adapter hardware, and no
problems should arise if you leave the existing device driver
installed. You may remove the device driver later, after you
have successfully rebooted Windows NT. However, if you
leave the driver installed, the system alerts you with an error
message of the extra device driver every time you boot. See
Removing a Host Adapter on page 2-10.
2
Once the new device driver is installed, shut down Windows
NT and replace the existing host adapter with the Ultra160
Family host adapter.
3
Restart your computer and Windows NT. It is possible that
some drive letter assignments may change from the previous
configuration.
