3
Please check in the BIOS setting that the devices or ports that you need are not
disabled. These include the floppy drive, COM1/COM2 ports, parallel port,
USB ports, external cache, on-board VGA and Ethernet.
It is also very common that users would like to disable a certain device/port to
release IRQ resource. A few good examples are
disable COM1 serial port to release IRQ #4
disable COM2 serial port to release IRQ #3
disable parallel port to release IRQ #7
disable PS/2 mouse to release IRQ #12,
…, etc.
A quick review of the basic IRQ mapping is given below for your reference.
IRQ#
Description
IRQ #0
System Counter
IRQ #1
Keyboard
IRQ #2
Programmed Controller
IRQ #3
COM2
IRQ #4
COM1
IRQ #5
Nothing
IRQ #6
Floppy Disk Controller
IRQ #7
Printer Port (Parallel Port)
IRQ #8
CMOS Clock
IRQ #9
Nothing
IRQ #10 USB interface
IRQ #11 Nothing
IRQ #12 PS/2 mouse
IRQ #13 Data Processor
IRQ #14 Primary IDE Controller
IRQ #15 Secondary IDE Controller
It is then very easy to find out which IRQ resource is ready for additional
peripherals. If IRQ resource is not enough, please disable some devices listed
above to release more.
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5----4 OS Diagnostics
4 OS Diagnostics
4 OS Diagnostics
4 OS Diagnostics
What will be presented here is a brief guide to properly house-in the driver for
any Microsoft Windows-95/98/NT device. For other operating systems, please
refer to OS manual/guidebook.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
