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Shared IRQs

microsoft.public.windows.vista hardware devices






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  #1 (permalink)  
Old 03-05-2007
Troy Marrs
 

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Shared IRQs
Straight out of the box my hp a1710n has shared irq's. I know in previous
versions of windows this was not a good thing. Should I change these?

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  #2 (permalink)  
Old 03-05-2007
Don
 

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Re: Shared IRQs
Troy Marrs wrote:
> Straight out of the box my hp a1710n has shared irq's. I know in
> previous versions of windows this was not a good thing. Should I change
> these?


If all the hardware devices seem to be working properly then leave it
alone! You can only cause trouble. IRQ's are a finite resource and
some sharing is inevitable on modern machines with many devices.
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  #3 (permalink)  
Old 03-05-2007
Steve Thackery
 

Posts: n/a
Re: Shared IRQs
IRQ sharing is as designed, and completely normal in the NT family of
operating systems. It is not uncommon to see five, and sometimes up to
seven, devices sharing an IRQ line. As I said, this is completely normal
and not harmful.

Don't mess with the IRQ allocations.

Thack


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  #4 (permalink)  
Old 03-05-2007
JW
 

Posts: n/a
Re: Shared IRQs
With MCE2005 there were many reports of video dropped frames and stuttering
problems when watching LIVE TV when the systems graphics card and TV tuner
card shared the same IRQ. This was apparently caused by both cards not
being able to have their I/O delayed in order to keep the TV program running
in real time.
"Steve Thackery" <thack@nowhere.net> wrote in message
news:%23otpL6wXHHA.4368@TK2MSFTNGP06.phx.gbl...
> IRQ sharing is as designed, and completely normal in the NT family of
> operating systems. It is not uncommon to see five, and sometimes up to
> seven, devices sharing an IRQ line. As I said, this is completely normal
> and not harmful.
>
> Don't mess with the IRQ allocations.
>
> Thack
>



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  #5 (permalink)  
Old 03-07-2007
BSchnur
 

Posts: n/a
Re: Shared IRQs
> Straight out of the box my hp a1710n has shared irq's. I know in previous
> versions of windows this was not a good thing. Should I change these?


Shared IRQ's used to be a problem a decade ago (Windows 9x, Windows ME)
Shouldn't be an issue now.


--
Barry Schnur
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