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Primary IDE channel has an IRQ conflict after disabling ACPI

Posted on 2006-06-20
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Last Modified: 2010-08-05
I've just replaced my WinXP ACPI driver with the Standard PC driver. Not a recommended course of action, I know, but I'm desperate to get my pro soundcard, an m-audio D1010LT, working glitch-free.

After reboot, XP insisted on reinstalling all hardware drivers, but it had a problem with the Nvidia IDE 2.6 driver ('not compatible with this processor' or something), so I eventually made it install a standard IDE driver. Now i have an IRQ conflict between the 'Primary IDE channel' and the 'Standard IDE/ESDI Hard Disk Controller'. I'm not sure how this is impacting performance (since I've never used this PC with ACPI disabled before) but I'd very much like to get rid of the yellow exclamation mark next to Primary IDE channel. Below is a list of IRQ assignments

(ISA) 0 System timer
(ISA) 1 PC/AT Enhanced PS/2 Keyboard
(ISA) 3 Communications Port (COM2)
(ISA) 4 Communications Port (COM1)
(ISA) 6 Standard floppy disk controller
(ISA) 8 System CMOS/real time clock
(ISA) 10 MPU-401 compatible MIDI device
(ISA) 12 Microsoft PS/2 Mouse
(ISA) 13 Numeric data processor
(ISA) 14 Primary IDE channel   (Yellow exclamation mark in Dev manager front page)
(ISA) 14 Standard IDE/ESDI Hard Disk Controller
(ISA) 15 Secondary IDE channel
(PCI) 5 NVIDIA nForce PCI System Management
(PCI) 5 NVIDIA(R) nForce (TM) Audio Codec Interface
(PCI) 5 Standard OpenHCD USB Host Controller
(PCI) 11 M-Audio Delta 1010LT
(PCI) 11 NVIDIA GeForce4 MX440
(PCI) 11 Standard Enhanced PCI to USB Host Controller
(PCI) 11 Standard OpenHCD USB Host Controller


Can anyone suggest a course of action other than reinstalling ACPI or living with the problem? And why exactly is nothing showing up on IRQ 9?

I'd be happy to provide any additional info.
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Question by:MarkHadman
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by:Callandor
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I have an M-Audio Delta 410 soundcard that works fine on an Abit IC7G motherboard with WinXP Home.  Can you describe what goes wrong when you try the normal installation?
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by:MarkHadman
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re: Callandor's comment on M-audio soundcards

Thanks for the comment.

Oh, I've had a nightmare with this card, like many people it seems. I first used it with a VIA-chipset mobo (K6II processor) and had to run an obscure software hack to eliminate PCI latency in order to get it to work properly at all. If I remember correctly all was fine when I first upgraded to an N7A8X-X with Athlon XP2500+, but somewhere along the way (perhaps when I moved from 98SE to XP) I started gettting occasional pops and clicks all over my recordings and playbacks (about once every couple of minutes or something like that). I don't really want to move back to Win98, although I can see that a dual-boot might be a solution.

Whilst living with the problem I've tried all sorts of things like playing with the buffer size, disabling background progs and services, disabling non-audio hardware, turning off the fridge (!) etc. Unlike the VIA problems, I can't find any reference to problems with my current mobo so I'm in the dark somewhat. I was looking into buying an Echo Layla or Terratec Phase 88 or replacing my Mobo, then I came across the ACPI suggestion last night on Sound On Sound's website, so I thought I'd give it a try. I haven't had chance to give the card a really thorough test since, but things are looking promising.

Perhaps I should have asked about the soundcard on EE a long time ago, but to be honest until this morning I'd totally forgotten about EE!



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by:Callandor
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The Win98 dual boot can be your fallback if nothing else works.  I see someone else who started on Win98SE and moved to WinXP: http://www.tweakheadz.com/review_of_the_delta_1010.htm  Are you using the ASIO drivers from M-Audio?
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by:MarkHadman
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Yes, I'm using the latest ASIO drivers from M-audio. I'm pretty sure I've tried several releases of the driver since I installed XP (Sorry for being vague but this is a long-running problem and I record stuff rather sporadically).

A very interesting article that you point to. I too can run 50 compressors and reverbs within Logic without overload, but the problem is still there: even with no plug-ins running I can't/couldn't record a one track take without a high probability of getting clicks and pops. The most interesting bit was THIS - "The documentation in the manual [for the Delta 1010] is only fair. They could have been more specific about IRQs, disabling ACPI in windows, and about troubleshooting". Kind of suggests that disabling ACPI is a foregone conclusion in certain circles, which is frustrating because I'd never come across it until yesterday despite repeated searches around the issues. At least it seems I may be on the right track finally, if only I could solve or confidently live with the IDE/IRQ issue.

re Win98 : I don't think a dual boot will be feasible without a lot of work, since my main audio drive is now a single partition 160GB NTFS volume. Also, is it possible to install 98 SE as a dual-boot without having to redo my XP(SP2) installation? There's a HECK of a lot of software on there!


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Callandor earned 500 total points
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All you need to install a dual boot WinXP/Win98SE configuration is buy a new hard drive (or repartition the existing one to free up space, but I prefer a new drive if possible), boot with the Win98SE floppy and install the OS on the new drive.  Edit the WinXP boot.ini file to add a new line which points to the new drive and Windows directory: http://support.microsoft.com/default.aspx?scid=kb;EN-US;q289022

IDE controllers like to use IRQ 14 and won't share them, so I think you've run into a wall there.  What is causing the "Standard IDE/ESDI Hard Disk Controller" to appear?  I usually only see Primary IDE Channel and Secondary IDE Channel.
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by:MarkHadman
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> What is causing the "Standard IDE/ESDI Hard Disk Controller" to appear?

I've no idea, and unlike most Device Manager entries there oddly isn't an option to disable/uninstall it, otherwise I'd give it a try.
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by:Callandor
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This site has some good ideas about tackling M-Audio problems with VIA chipsets: http://www.digitalconnection.com/Support/cn_maudio7.asp
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by:MarkHadman
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The solution to my problems with my old VIA board was an obscure little TSR program that set the PCI latency to 0. Unfortunately my current board, the A7N8X-X, is based on the Nforce2 chipset.

Thanks for your help and suggestions Callandor. I'd like to leave this open a little while longer to see if anyone can add anything regarding the IRQ/ACPI thing, or indeed the whole issue with soundcards, mobos etc.

I've increased the point value too.
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