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Subject: glitchy audio

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Original Message 1/20 06-Dec-03 @ 10:04 PM - glitchy audio

Defector Z

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Yo - So I had this old Rage card and I got glitches in the audio whenever there was heavy picture movement on the monitor, and even with my new Matrox dual VGA card, I am having this problem. Both cards are AGP. Any thoughts? I read k's article about this, but he only mentions PCI cards. Are these the same in this instance, sharing PCI bus? If not - how do I fix this problem? Thanks.

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Message 2/20 07-Dec-03 @ 07:38 AM - RE: glitchy audio

psylichon

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Only thing I can think of is, in your bios, check and see if there's an option to "assign interrupt to VGA"... try disabling that. I think that somehow incororates it into the PCI bus? Wow, I'm really making things up here, but it all sounds legit...

psy

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Message 3/20 08-Dec-03 @ 03:11 PM - RE: glitchy audio

craig

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Make sure they aren't sharing IRQs.

-Craig

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Message 4/20 08-Dec-03 @ 03:26 PM - RE: glitchy audio

Defector Z

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Nope - the vid card is IRQ 16 and the audio card is IRQ19. Only shared IRQ's are for my USB port...

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Message 5/20 08-Dec-03 @ 03:38 PM - RE: glitchy audio

psylichon

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and your MIDI interface? USB?

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Message 6/20 08-Dec-03 @ 04:25 PM - RE: glitchy audio

Defector Z

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Midi interface is Aardvark LX6

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Message 7/20 08-Dec-03 @ 04:27 PM - RE: glitchy audio

craig

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DMA mode enabled on hard disk?

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Message 8/20 08-Dec-03 @ 07:13 PM - RE: glitchy audio

Yonce N Mild

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Onboard sound on the motherboard ? If so is it disabled ?

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Message 9/20 08-Dec-03 @ 07:39 PM - RE: glitchy audio

Defector Z

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How do I check DMA enabled?

No onboard sound on the mobo so nothing to disable there.

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Message 10/20 08-Dec-03 @ 08:34 PM - RE: glitchy audio

craig

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right-click on My Computer, select "properties" Select hardware tab. Click "Device Manager" button. You'll see a tree-type view with all your hardware. Open up "IDE/ATAPI disk controllers" and double click on "Primary IDE" (and also "Secondary IDE" in turn.

There should be a dropdown under "Advanced Settings" that should be set to "DMA" or "DMA if possible".

If you find the dropdowns and they're not set to DMA, set them.

If you don't find dropdowns, or there's no choice for DMA, visit your motherboard manufacturer's website and download updated drivers for your motherboard. These should enable DMA.

-Craig

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