Changing IRQ

Mikkel L. Ellertson mikkel at infinity-ltd.com
Sat Aug 25 13:24:46 UTC 2007


Tim wrote:
> On Sat, 2007-08-25 at 16:08 +0800, LC wrote:
>> Is there a way to change IRQ of PCI devices?
> 
> The simple way is to plug the device into a different slot.  It may get
> assigned differently, this time.  Sometimes you have to do this, as some
> slots share with each other, or other motherboard devices.  You can
> also, sometimes, tweak things through the BIOS.
> 
One small addition - although it is rare to find in new cards, there
can be a jumper on the card that can change the IRQ. There are 4
possible IRQ line on the PCI connector. (INT A through INT d) What
IRQ is tied to the pin depends on the design of the motherboard. The
PCI card has the option of selecting what INT line to use, though
not all boards implement it.

Mikkel
-- 

  Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!

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