Adding and removing drives     7-5
Installing ISA cards
Both Plug and Play and non-Plug and Play ISA cards require 
specific IRQs. When installing ISA cards, make sure that the 
IRQs required by these cards are not previously assigned to 
PCI devices to avoid resource conflicts.
Follow these steps when installing ISA cards:
1.
Remove all Plug and Play cards installed in the 
system.
2.
Enter Setup and set the Reset Resource Assignments 
parameter to Yes to clear the resource data assigned 
to the Plug and Play devices. Refer to “PnP/PCI 
options” on page 5-17.
3.
Install non-Plug and Play ISA cards.
4.
Turn on the system.
5.
Use Windows 95, or the ISA Configuration Utility (ICU) 
if your ISA card came with it, to manually assign the 
appropriate IRQs to the cards. This ensures that BIOS 
will not use the resources assigned to the non- Plug 
and Play ISA cards.
6.
Turn off the system.
7.
Install Plug and Play ISA and PCI cards.
8.
Turn on the system. This time, BIOS automatically 
configures the Plug and Play ISA and PCI cards with 
the remaining free IRQs.
Adding and removing drives
The system unit has five drive bays to accommodate various 
types of drives. Some of these bays hold drives that were 
installed at the factory.
When you purchase a new drive, make sure that you also 
purchase the appropriate power and signal cables.
See the section “Looking inside the system unit” on page 6-6 
for the location and description of the drive bays.
Removing and replacing 
bay panels
When you first unpack your computer, all drive bays that do 
not contain drives are covered with plastic bay panels. 
These bay panels are attached to the system unit cover (not 
to the system unit internal frame).
To install an externally accessible drive in a previously 
unoccupied bay, you must remove the bay panel in front of 
that bay. If you install a drive that does not require external 
access, such as a hard disk, you do not need to remove the 
bay panel. If you remove a drive from a bay and you do not 
intend to install a new drive immediately, replace the bay 
panel to cover the bay.
Note:
BIOS configures only Plug and Play cards.
v65xahb.book : chap-7.fm  Page 5  Friday, January 16, 1998  4:27 PM