Newbie with an old question

4 replies [Last post]
Joined: Nov 5 2001

Hi folks,

I have recently added a DV500 to my system
and have IRQ conflicts and being fairly new to all this i have no solution.

The system i have gradually built is:

Win 2000 pro
CPU - Athlon 1.33
Motherboard - GA 7DX
Sound card- Creative Soundblaster live 5.1
graphics card - Nvidia TNT 2 (untill i can afford a new dual head card)
video - DV500
USB cable modem
the rest is porbably irrelevant

My problem is IRQ conflicts here is the deal

IRQ Number Device
9 Microsoft ACPI-Compliant System
11 NVidia Riva TNT2 Model 64
11 VIA USB Universal Host Controller
11 VIA USB Universal Host Controller
11 Creative SB Live! series(WDM)
11 Pinnacle Systems DV500-1394
14 Primary IDE Channel
15 Secondary IDE Channel
10 Pinnacle Systems DV500 Overlay
10 Pinnacle Systems DV500 E4
10 Pinnacle Systems DV500-1394
8 System CMOS/real time clock
13 Numeric data processor
6 Standard floppy disk controller
4 Communications Port (COM1)
3 Communications Port (COM2)
12 Logitech-compatible Mouse PS/2
1 Easy Internet Keyboard

i have no idea how to resolve irq
conflicts have tried moving the Soundcard
and reinstalling to no avail.

Can any body please give me some pointers.


John Disdle
Joined: Dec 28 2000

You don`t say what the problems are. Win2K puts several thing on the same IRQ.
I don`t know your m/board. Can you change IRQ s in the BIOS.
I have an Asus A7M266 m/board. DV500 in slot 4 IRQ 10. the 1394 is on IRQ 9. I use on board audio at the moment. Check the manual to see where IRQ s are assigned.


Joined: Nov 5 2001

Thanks for the reply,

The problem is due to a conflict of IRQ's i the DV500 will not operate i.e i cannot capture at all.
I have tried the suggestion on the Pinnacle site of disabling ACPI in device manager
which should reset the IRQ's i am just somewhat confused as to what is the best thing to try next as there seem to be conflicting ideas about what is causing the problem, and in what order i should approach
tackling this.

Suggestions so far have been that:

the Graphics card Nvidia TNT2 Model64
is incompatible with the DV500;

that the sounblaster card has a 16bit emulator that causes conflict;

that premiere 6 will solve the problem ( i run 5.1 at present);

that i should get a different soundcard all together;

that the bios update should solve the problem;

others to come i hope;
I am as you may gather somewhat lost.


My latest info (in case anyones interested)
suggest that now my ACPI is disabled i can go into the BIOS disable any unused devices i can find i.e printer port (LPT1)
Com ports etc. and that will free up the necessary IRq's i require this seems logical and i will try it later when i return home.

However my fear is that The Nvidia TNT2 card will only accept IRQ11 which is the one which the DV500 demands (i presume)
and i will be stuck with the same problem.

any further wisdom at this point much appreciated.


[This message has been edited by spriggan (edited 06 November 2001).]

Trevor Page
Joined: Oct 4 1999

IRQ sharing under ACPI shouldn't give a headache. When you disabled ACPI in the BIOS did you reinstall W2k?

make sure you have the latest VIA 4in1 drivers (4.34v)
The latest nvidia drivers (detonator 21.83)
The latest sound card drivers.

If that don't work, try shuffling the cards around a bit. move the DV500 away from the graphics card.



Joined: Nov 5 2001

THanks for that trev,

However have now sorted it wahoo

I removed both PCI cards
I disabled the ACPI in windows device manager,
disabled the devices i don't use in bios
rebooted (many times) reinstalled drivers for everything
installed the DV500 PCI 2
rebooted, installed the soundcard PCI 5 and hey presto much joy.

Now down to some editing