shared IRQ's?

[Piotr Wozniacki]

Hi,

Before upgarding to w2k, I had each device with its own IRQ under
NT4.0 - now the PnP in w2k configured several on one, shared IRQ 11
(see below). Can it cause conflicts? I bet it can, but how do I change
them?

Peter

System Information report written at: 2000-02-02 17:50:09
[Conflicts/Sharing]

Resource Device
IRQ 11 ATI Technologies Inc. 3D RAGE LT PRO AGP 2X
IRQ 11 Texas Instruments PCI-1220 CardBus Controller
IRQ 11 Texas Instruments PCI-1220 CardBus Controller
IRQ 11 3Com Megahertz 10/100 LAN CardBus PC Card
IRQ 11 Intel 82371AB/EB PCI to USB Universal Host Controller
IRQ 5 ESS Maestro2 PCI AudioDrive (WDM)
IRQ 5 MPU-401 Compatible MIDI Device

[JMV]

This happens when you have a fully ACPI compliant system. This is by design,
cannot be changed, and shouldn't pose any problems (as long as your system
is truly ACPI compliant)

"Cannot Disable IRQ Steering on ACPI-Enabled Computer"
http://support.microsoft.com/support/kb/articles/q232/8/24.asp

(p.s. no need to cross post so much. )

--
John M. Vittone
MS MVP

"Piotr Wozniacki" <meg...@polbox.com> wrote in message
news:ep#tn9Zb$GA....@cppssbbsa02.microsoft.com...

[Fred Jackson]

I bet it can, too, but don't look for trouble :-)
If all the drivers are up to snuff (a big if), it HAS to work.
All drivers working with shared interrupts s MANDATED by the PCI spec.

[Fred Jackson]

Then, ipso facto, that STB video card (or more
likely the driver) is junk. Sorry, I know that
is not very constructive to say, but things like
that make me furious.

You're right that there is a lot of such junk out
there :-(

David Maria <dma...@farmwagon.com> wrote in message
news:OXYg9sdb$GA.1524@cppssbbsa06...
> It may be "MANDATED" by the PCI specs, but my STB video card manual states
> "Do NOT attempt to share an IRQ with any device...". I couldn't help but
try
> it and sure enough it crashed - although my SCSI card and USB root hub do
> share the same IRQ and function perfectly together.
>
> Fred Jackson <fjac...@imetrix.com> wrote in message
> news:eQ0IVScb$GA....@cppssbbsa02.microsoft.com...

[Ralph Gericke]

Fred Jackson <fjac...@imetrix.com> schrieb in im Newsbeitrag:
OmsQnflb$GA....@cppssbbsa02.microsoft.com...

> Then, ipso facto, that STB video card (or more
> likely the driver) is junk. Sorry, I know that
> is not very constructive to say, but things like
> that make me furious.
>
> You're right that there is a lot of such junk out
> there :-(

My Wintv card shares the IRQ 11 with a network card DEC21XXX and the
grafic
card (matrox g400). According to the hauppauge hotline the wintv card
needs
an own IRQ to wirk properly ( I have a picture but no sound ).

What can I do ??

bye Ralph

[Kurt Mann]

Simply said - Nothing :-(

My Video Card, some other PCI Cards and my TV Card are shring IrQ9.

All are working fine without one exception - WinTV and Video card :-(

Hauppauge didn't know about this problem - their answer was " soory we've
also no solution"

This damend irq sharing bases on Microsofts ACPI specifiaktions

You have to install Winn2000 as Standard PC and not as ACPI PC to be able to
change IRQs maually

Ciau
Kurt

If you find another solution please let me Know via E-mail!!

"Ralph Gericke" <R_Ge...@Hotmail.com> schrieb im Newsbeitrag
news:87e7n5$hkh$1...@news02.btx.dtag.de...

[Erik Funkenbusch]

Kurt Mann <kurt...@aon.at> wrote in message
news:389b2d21$0$15...@SSP1NO17.highway.telekom.at...

> This damend irq sharing bases on Microsofts ACPI specifiaktions

Umm.. it's actually Intel's specification. PCI 2.1 requires cards to
support IRQ sharing. If they don't, then it's the fault of the
manufacturer. This is not something new, it's been in the PCI spec for
years. It's just that OS's have not been supporting it fully yet, so many
manufacturers haven't bothered supporting it.

[Kurt Mann]

Hello erik - of course you're right - but this doesn't solve the Problem.

Even there is the option in W2k to get the irq list from Bios (it doesn't
load the bios settings

:-( and so I think Microsoft had also made some mistake in this OS

"Erik Funkenbusch" <er...@visi.com> schrieb im Newsbeitrag
news:ebA0$X$b$GA....@cppssbbsa02.microsoft.com...

[Gambit]

Hi. Iam runningi Win 2k Adv Server and i and trying to use 4 nics in my 1
machine. I have set in the bios for the slots to use diffent irqs but 2k
wants to set them all to irq 9
they are 3com 3905Tx and i just wanna know if this is ok because right now
im useing a 3com 12port hub but i will have a cisco 2912XL switch by friday
i need to know if this will give me a good connection between my computers
and if it matters if the cards have the same irq