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BIOS Overview
46 Evo D310 Micro Desktop
Interrupt Controllers
The Interrupt Requests (IRQs) are numbered sequentially, starting with the master controller, and
followed by the slave.
DMA controller
Channel Function
0Free
1 Free if not used for parallel port in Setup
2 Floppy disk controller
3 Free if not used for parallel port in Setup
4 Used to cascade DMA channels 0-3
5Free
6Free
7Free
Windows 2000 and Windows XP
IRQ
(Interrupt Vector)
Interrupt Request Description
INTR
ISA0 System Timer
ISA1 Standard 101/102-Key or Microsoft Natural PS/2 keyboard
ISA3 Communication Port (COM2)
ISA4 Communication Port (COM1)
ISA6 Standard Floppy Disk Controller
ISA8 System CMOS/real time clock
ISA9 Microsoft ACPI-Compliant System
ISA12 PS/2 Compatible Mouse
ISA13 Numeric data processor
ISA14 Primary IDE Channel
ISA15 Secondary IDE Channel
PCI5 Intel(R) 82801BA/BAM SMBus Controller - 2443
PCI17 Intel(R) 82801BA/BAM AC’97 Audio Controller - 2445
PCI19 Intel(R) 82801BA/BAM USB Universal Host Controller - 2442
PCI20 Intel(R) PRO/100 VE Network Connection
PCI 23 Intel(R) 82801BA/BAM USB Universal Host Controller - 2444