Audio stuttering - shared IRQs?

pilch

pilch

pilch

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Joined
19 Mar 2008
Posts
75
A while ago I began to observe a strange stuttering effect on audio and video when loading web pages. It doesn't happen after a reboot, but starts happening after a few hours, and gets progressively worse until I reboot again.

I did a bit of digging around on the web and I'm led to believe it may be an issues of IRQs being shared across components.

When I go to Run > msinfo32, and check under the IRQs section, I can see that 'High Definition Audio Controller' and my netword adaptor 'Realtek RTL8169/8110 Family PCI Gigabit Ethernet NIC (NDIS 6.0) #2' are both on IRQ 22.

I have tried (multiple times) to completely uninstall both of these components in Device Manager, and reboot windows (Vista 64 Ultimate) in the hope that it would assign one or both of them to a different IRQ. Sadly this hasn't worked at all, they continue to be assigned to IRQ22 no matter how many times I uninstall them.

Specs are as follows:

Q6600 @ 3.1GHz
ABit IP35-Pro
8GB Corsair RAM
XFX 260GTX
5 SATA hdds
Vista 64 Ultimate

If anyone has any suggestions on how to guarantee different IRQs or anything else that might solve this problem I would be very grateful, it really becomes tedious to have to reboot for no reason other than this :/

Thanks :)
 
I appreciate you taking the time to reply, but that's not really the solution I was hoping for :P

Anyone else got a bright idea? :)
 
siumatfung said:
is it the 2nd ethernet port which is on the same IRQ?

and you only need one right?

you could just disable instead of uninstalling :D
Click to expand...

Correct, I'm not sure the reason why I used the second ethernet, I seem to recall having trouble getting the first one to work when I set up the PC initially.

However, I tried again just now and it the first ethernet is working fine, and the IRQ for this ethernet is now 23, which is only shared with some USB controllers.

Unfortunately the stuttering is still occuring..

CPU temps are between 40 and 44 across the 4 cores (didn't lap it, maybe should have done!).

Now I think about it, this problem only started happening after I got some new RAM.. (Corsair XMS2 4GB (2x2GB) DDR2 PC2-8500C5 TwinX Dual Channel (TWIN2X4096-8500C5)) x2 for 8GB total.

There hasn't been any other problem with the RAM at all, no instability/slowdowns or anything.

At the same time as getting the new RAM I got a new PSU (620W corsair modular) and also 2 extra hard drives (1TB samsung spinpoint and a 150GB velociraptor, which I'm not currently using). The 1TB drive is for storage only, so it's not being accessed on a regular basis.
 
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