NEC VT 300i Personal Computer User Manual


 
2-2 System Configuration
This section provides information for configuring the system. The section
includes:
system interrupt request (IRQ) assignments
system jumper settings
procedures for using the BIOS Setup utility to configure the system
descriptions of video modes
information on power management
descriptions and procedures for using the following utilities and
applications
BIOS Update utility
NEC OS Restore CD
NEC Application and Driver CD
Cheyenne Backup
Intel Processor Serial Number Control utility.
Interrupt Requests
The following paragraphs list the system interrupts (IRQs), parallel addresses
and interrupts, and serial addresses and interrupts. Section 4, “System Board,”
includes information on system resources (memory map, I/O addresses, and
DMA settings).
System Interrupts
The system has 16 IRQs (IRQ 0 through 15) assigned to different devices (for
example, printer, modem, keyboard, mouse). Initial IRQ settings are assigned at
the factory, with settings dependent on the installed device(s). Several IRQs are
unassigned for the installation of add-on devices. See “BIOS Setup” utility in
this section for information on using the utility to assign or change the
interrupts.
The following table lists the IRQ settings. Note that assignments 0 through 15
are in order of decreasing priority.