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This section provides information for configuring the system. The section includes information
on:
system interrupt request (IRQ) assignments
!
system jumper settings
!
procedures for using the BIOS Setup Utility to configure the system
!
hard drive security for password protection of the internal hard drive
!
descriptions and procedures for using the following utilities and applications that may be
!
installed
— Flash Utility
— NEC Application and Driver CD
— NEC INFO Center
— NEC OS Restore CD
— Intel Processor Serial Number Control Utility
Note
If you need to configure the minitower system as a desktop system or the desktop
system as a minitower system, see "Minitower and Desktop Conversion" in Section 3.
Interrupt Requests
The following paragraphs list the system interrupts (IRQs), parallel interrupts, and serial
interrupts. (See Section 4, "System Board," for parallel and serial addresses.)
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 in order of decreasing priority.
2-2 System Configuration
Interrupt Level Assignments
Interrupt
Assignment*
Interrupt Device
IRQ00
System Timer
IRQ01
Keyboard
IRQ02
Programmable Interrupt Controller
IRQ03
COM2
IRQ04
COM1
IRQ05
LPT2
IRQ06
Diskette Drive Controller
IRQ07
Parallel Port 1
IRQ08
Real-Time clock
* IRQ assignments may vary, depending on system configuration.
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