Acer V55 User Manual page 51

1.9 Installing ISA Cards
Both PnP and non-PnP 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 PnP cards installed in the system, if any.
2. Enter BIOS utility and set the Reset Resource Assignment parameter to
Yes to clear the resource data assigned to the PnP devices. Refer to
section 2.6.5.
3. Install non-PnP ISA cards.
4. Turn on the system.
5. Use Windows 95 or ICU to manually assign the appropriate IRQs to the
cards. This ensures that BIOS will not use the resources assigned to the
non-PnP ISA cards.
BIOS detects and configures only PnP cards.
6. Turn off the system.
7. Install PnP ISA and PCI cards.
8. Turn on the system. This time PnP BIOS automatically configures the
PnP ISA and PCI cards with the remaining free IRQs.
System Board 1-17