Removing A Host Adapter; Swapping A Host Adapter - Dell PowerEdge 4200 Series User Manual

host adapter types. Verify that the new host
adapter appears on the list; the string should look
similar to the following:
Adaptec AHA-2940/AIC-78xx (PCI) NT
v3.5x
13. If you want to add other host adapters (that are
not part of the Adaptec 78xx series), do so at this
time by repeating steps 6 through 8 for each addi-
tional adapter, inserting the appropriate diskette
provided by the hardware manufacturer.
Because all Adaptec 78xx series host adapters use
the same driver, you configure all Adaptec host
adapters at the same time.
14. Click Close to exit the SCSI adapters portion of
Windows NT Setup, and then close the program.
15. When you see the following message, click OK to
exit:
The changes you have made will not take
effect until the computer is restarted.
If this message does not appear, no changes have
been made to the Windows NT system
configuration.
16. Restart your computer and Windows NT.
Some drive letter assignments may have changed
from the previous configuration.

Removing a Host Adapter

Removing a PCI expansion-card SCSI controller is as
simple as physically removing it from its slot when your
computer is shut down. Windows NT boots and functions
properly in this configuration, but a warning message is
generated every time you boot Windows NT.
CAUTION: If you have removed a host adapter
but still have other host adapters of the same type
installed in your computer, do not use Windows NT
Setup to remove the device driver.
To eliminate the warning message, you must update the
Windows NT software configuration as follows:
1. Select and start the Windows NT Setup program.
There is a brief pause while Windows NT Setup
scans your hardware configuration.
2. Select the Options pull-down menu, and then
select Add/Remove SCSI Adapters.
The SCSI Adapter setup program displays a list of
all host adapters currently installed.
3. Select the host adapter you want to remove, and
click Remove. When the Windows NT Setup pro-
gram asks you for confirmation, click OK.
Because SCSI device drivers are loaded during sys-
tem bootup and because they may be needed to load
Windows NT itself, a screen may appear warning
you that Windows NT may not start if you remove
the SCSI adapter.
4. When you are sure you are removing the correct
host adapter type, click OK.
5. Return to step 3 if you want to remove driver sup-
port for other types of host adapters, or click
Close to exit the SCSI adapters portion of Win-
dows NT Setup.
6. Close the Windows NT Setup program. When the
following message appears, click OK to exit:
The changes you have made will not take
effect until the computer is restarted.
If this message does not appear, no changes have
been made to the Windows NT system
configuration.
7. Restart your computer.
NOTE: The Windows NT Setup program does not delete
the device driver from your hard-disk drive; it only
updates Windows NT software configuration information
so that the device driver is no longer loaded during sys-
tem start-up.

Swapping a Host Adapter

The procedure for swapping one type of host adapter for
another is similar to the procedure for adding a host
adapter, except that you make all software configuration
changes, while Windows NT is running, before you make
the hardware changes.
1. Install the driver for the new host adapter by fol-
lowing the steps in "Installing or Updating the
Installing and Configuring SCSI Drivers 3-9