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IRQ guru's? help needed
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| marsh |
Hi People,
I have an Audiophile 2496 which makes a jumping/tearing sound at roughly 1 sec intervals - sometimes irrespective of whether the CPU is under load. I've adjusted DMA buffer settings right up and my CPU can be at about 30% and this phenonenon happens. M-audio support advised me to check for IRQ conflicts and I found the card to be sharing IRQ 18 (virtual) with a USB and an ATA controller. I moved PCI slot and it now occupies 21 on it's own but I assume 21 also being virtual is mapped to one of the physical irq's.
*tears hair out*
I'm trying to avoid a re-install if possible as I've just done one fairly recently. Does anyone know of a way to get my Audiophile occupying it's own physical IRQ?
Any help would be most appreciated - cheers. |
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| Limit |
| if you go into hardware wizard and check teh properties of the audiophile you can change the Irq settings. try that. Make sure you don;t have a ty HD...cause I garantee if you have a slow HD and your usin' Cubase or Logic, your gonna have this prblem BIG time. I had this problem for a long time and now that I bought a new HD I don't have it anymore. 7200 rpm's and up will do. Also make sure you don;t have ram with different clock speeds...M-audio advises against this and says it causes pops and clicks. |
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| marsh |
| quote: | Originally posted by Limit
if you go into hardware wizard and check teh properties of the audiophile you can change the Irq settings. try that. Make sure you don;t have a ty HD...cause I garantee if you have a slow HD and your usin' Cubase or Logic, your gonna have this prblem BIG time. I had this problem for a long time and now that I bought a new HD I don't have it anymore. 7200 rpm's and up will do. Also make sure you don;t have ram with different clock speeds...M-audio advises against this and says it causes pops and clicks. |
Thanks for replying dude! The options to change the irq in xp is greyed out. Microscam says that this is due to the more complex hardware schemas it supports and that the XP installation needs to be a forced HAL one as opposed to an ACPI install(supporting virtual irq's) to be able to manually specify them. I even changed it in the bios but xp ignores it :(
My HD is a 80 GB Seagate SATA 8mb cache / 7200 rpm (rules that out!)
Both ram modules are 512mb DDR PC3200 (rules that out!)
Thanks for the suggestions though - appreciated :) |
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| Dj Thy |
If you want to disable ACPI in an already installed Windows, just go to the Device Manager (Control Panel -> System -> Device Manager).
There, one of the first entries is Computer. If you look into it, you should see something like ACPI PC. To disable it, look into it's properties, and Update Driver. Select manually, and look for Standard PC.
After the reboot, Windows will redetect most of your hardware, but the IRQ will be mostly dependent on the PCI slots your cards are in. So, I suggest you also look up the documentation of your motherboard, to find out which PCI slots share IRQ's. It's almost a standard that the PCI slot right under the AGP one shares it's IRQ with the AGP card. For the rest you'll need to look it up. (how to change modes is available to at www.musicxp.net , there's some PDF at Tascam available too, and in the Cubase SX manual a chapter can be found about this topic also).
Be aware that once you go the Standard PC route, if you want to activate ACPI again, it's reinstall time. So be sure you've tried everything else before...
This was a problem with M-Audio cards some time ago, but I haven't heard about ACPI related problems for a long time now (although my machine has always been running in Standard mode). |
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| marsh |
Thanks so much for that mate!
I have been thinking lately that I should stop whining and just do a fresh install and try and move the audiophile and get it an exclusive physical irq.
Failing that, I'll try disabling ACPI and see how I cope with that.
Then I think once I've set this all up nicely, I'm gonna ghost my install and be worry free to make music!!
I'm even thinking of getting a net computer and leaving this as a fully tweaked DAW. |
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