58 Chapter 5: Before you unplug and open the tower
Preventing specific conflicts between
Plug and Play and non-Plug and Play
hardware
If you install non-PnP hardware in a computer that has
any PnP hardware already installed, or if you install PnP
hardware in a computer that has only non-PnP hardware
already installed, you must enter the Setup Utility before
you install the new hardware to prevent resource
conflicts.
In the Setup Utility, you must assign the following
Industry Standard Architecture (ISA) Legacy resources
for the non-PnP hardware so that your computer’s Basic
Input/Output System (BIOS) does not attempt to assign
those resources to PnP hardware:
• System memory regions
• Input/output (I/O) ports
• Direct memory access (DMA) channels
• Interrupt requests (IRQs)
For information about the hardware combinations that
require you to assign ISA Legacy resources, see Table 2.
Note: All adapter cards installed at the factory are PnP cards.
For instructions on starting the Setup Utility, see “Using
the Setup Utility” on page 31. For instructions on
assigning ISA Legacy resources in the Setup Utility, see
“Changing adapter card device information” on
page 46.
Table 2: Adapter card combinations requiring
manual resource assignments
If the adapter
card or cards
currently
installed are...
And the adapter
card you are
installing is...
Then do you
assign resources
for the non-PnP
card?
None PnP No
Non–PnP No
PnP PnP No
Non–PnP Yes
Non–PnP PnP Yes
Non–PnP No
Both PnP and
non–PnP
PnP No
Non–PnP Yes
Note: ISA PnP adapter cards should be clearly labelled as
PnP cards. PCI adapter cards should be considered PnP cards.
To Next Page
Loading...
Need help?
General