NEC POWERMATE PROFESSIONAL 9000 - SERVICE, Руководство пользователя

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3-6 Reviewing System Features
ECC Memory
Error checking and correcting (ECC) memory detects
multiple-bit errors and corrects single-bit errors. When
ECC memory is installed, the BIOS supports both ECC and
non-ECC mode. ECC mode is enabled in the BIOS Setup
utility. The BIOS automatically detects ECC memory and
provides the Setup option for selecting ECC mode.
Interrupt Controller
The interrupt controller operates as an interrupt manager
for the entire system environment. The controller accepts
requests from peripherals, issues interrupt requests to the
processor, resolves interrupt priorities, and provides vectors
for the processor to determine which interrupt routine to
execute. The interrupt controller has priority assignment
modes that can be reconfigured at any time during system
operations.
The interrupt levels are described in the following table.
Interrupt-level assignments 0 through 15 are in order of
decreasing priority. See “The Setup Utility” in Chapter 4
for information on changing the interrupts using the Setup
Utility.